diff --git a/sherpa-onnx/c-api/c-api.cc b/sherpa-onnx/c-api/c-api.cc
index 9d70fb8a..feec532c 100644
--- a/sherpa-onnx/c-api/c-api.cc
+++ b/sherpa-onnx/c-api/c-api.cc
@@ -73,7 +73,7 @@ SherpaOnnxOnlineRecognizer *CreateOnlineRecognizer(
       SHERPA_ONNX_OR(config->model_config.tokens, "");
   recognizer_config.model_config.num_threads =
       SHERPA_ONNX_OR(config->model_config.num_threads, 1);
-  recognizer_config.model_config.provider =
+  recognizer_config.model_config.provider_config.provider =
       SHERPA_ONNX_OR(config->model_config.provider, "cpu");
   recognizer_config.model_config.model_type =
       SHERPA_ONNX_OR(config->model_config.model_type, "");
@@ -570,7 +570,7 @@ SherpaOnnxKeywordSpotter *CreateKeywordSpotter(
       SHERPA_ONNX_OR(config->model_config.tokens, "");
   spotter_config.model_config.num_threads =
       SHERPA_ONNX_OR(config->model_config.num_threads, 1);
-  spotter_config.model_config.provider =
+  spotter_config.model_config.provider_config.provider =
       SHERPA_ONNX_OR(config->model_config.provider, "cpu");
   spotter_config.model_config.model_type =
       SHERPA_ONNX_OR(config->model_config.model_type, "");
diff --git a/sherpa-onnx/csrc/CMakeLists.txt b/sherpa-onnx/csrc/CMakeLists.txt
index 29d78955..48d0c258 100644
--- a/sherpa-onnx/csrc/CMakeLists.txt
+++ b/sherpa-onnx/csrc/CMakeLists.txt
@@ -87,6 +87,7 @@ set(sources
   packed-sequence.cc
   pad-sequence.cc
   parse-options.cc
+  provider-config.cc
   provider.cc
   resample.cc
   session.cc
diff --git a/sherpa-onnx/csrc/online-model-config.cc b/sherpa-onnx/csrc/online-model-config.cc
index a8efa870..9913fa9e 100644
--- a/sherpa-onnx/csrc/online-model-config.cc
+++ b/sherpa-onnx/csrc/online-model-config.cc
@@ -16,6 +16,7 @@ void OnlineModelConfig::Register(ParseOptions *po) {
   wenet_ctc.Register(po);
   zipformer2_ctc.Register(po);
   nemo_ctc.Register(po);
+  provider_config.Register(po);
 
   po->Register("tokens", &tokens, "Path to tokens.txt");
 
@@ -29,9 +30,6 @@ void OnlineModelConfig::Register(ParseOptions *po) {
   po->Register("debug", &debug,
                "true to print model information while loading it.");
 
-  po->Register("provider", &provider,
-               "Specify a provider to use: cpu, cuda, coreml");
-
   po->Register("modeling-unit", &modeling_unit,
                "The modeling unit of the model, commonly used units are bpe, "
                "cjkchar, cjkchar+bpe, etc. Currently, it is needed only when "
@@ -87,6 +85,10 @@ bool OnlineModelConfig::Validate() const {
     return nemo_ctc.Validate();
   }
 
+  if (!provider_config.Validate()) {
+    return false;
+  }
+
   return transducer.Validate();
 }
 
@@ -99,11 +101,11 @@ std::string OnlineModelConfig::ToString() const {
   os << "wenet_ctc=" << wenet_ctc.ToString() << ", ";
   os << "zipformer2_ctc=" << zipformer2_ctc.ToString() << ", ";
   os << "nemo_ctc=" << nemo_ctc.ToString() << ", ";
+  os << "provider_config=" << provider_config.ToString() << ", ";
   os << "tokens=\"" << tokens << "\", ";
   os << "num_threads=" << num_threads << ", ";
   os << "warm_up=" << warm_up << ", ";
   os << "debug=" << (debug ? "True" : "False") << ", ";
-  os << "provider=\"" << provider << "\", ";
   os << "model_type=\"" << model_type << "\", ";
   os << "modeling_unit=\"" << modeling_unit << "\", ";
   os << "bpe_vocab=\"" << bpe_vocab << "\")";
diff --git a/sherpa-onnx/csrc/online-model-config.h b/sherpa-onnx/csrc/online-model-config.h
index 1509bd5b..0b64e06d 100644
--- a/sherpa-onnx/csrc/online-model-config.h
+++ b/sherpa-onnx/csrc/online-model-config.h
@@ -11,6 +11,7 @@
 #include "sherpa-onnx/csrc/online-transducer-model-config.h"
 #include "sherpa-onnx/csrc/online-wenet-ctc-model-config.h"
 #include "sherpa-onnx/csrc/online-zipformer2-ctc-model-config.h"
+#include "sherpa-onnx/csrc/provider-config.h"
 
 namespace sherpa_onnx {
 
@@ -20,11 +21,11 @@ struct OnlineModelConfig {
   OnlineWenetCtcModelConfig wenet_ctc;
   OnlineZipformer2CtcModelConfig zipformer2_ctc;
   OnlineNeMoCtcModelConfig nemo_ctc;
+  ProviderConfig provider_config;
   std::string tokens;
   int32_t num_threads = 1;
   int32_t warm_up = 0;
   bool debug = false;
-  std::string provider = "cpu";
 
   // Valid values:
   //  - conformer, conformer transducer from icefall
@@ -50,8 +51,9 @@ struct OnlineModelConfig {
                     const OnlineWenetCtcModelConfig &wenet_ctc,
                     const OnlineZipformer2CtcModelConfig &zipformer2_ctc,
                     const OnlineNeMoCtcModelConfig &nemo_ctc,
+                    const ProviderConfig &provider_config,
                     const std::string &tokens, int32_t num_threads,
-                    int32_t warm_up, bool debug, const std::string &provider,
+                    int32_t warm_up, bool debug,
                     const std::string &model_type,
                     const std::string &modeling_unit,
                     const std::string &bpe_vocab)
@@ -60,11 +62,11 @@ struct OnlineModelConfig {
         wenet_ctc(wenet_ctc),
         zipformer2_ctc(zipformer2_ctc),
         nemo_ctc(nemo_ctc),
+        provider_config(provider_config),
         tokens(tokens),
         num_threads(num_threads),
         warm_up(warm_up),
         debug(debug),
-        provider(provider),
         model_type(model_type),
         modeling_unit(modeling_unit),
         bpe_vocab(bpe_vocab) {}
diff --git a/sherpa-onnx/csrc/provider-config.cc b/sherpa-onnx/csrc/provider-config.cc
new file mode 100644
index 00000000..8a58746c
--- /dev/null
+++ b/sherpa-onnx/csrc/provider-config.cc
@@ -0,0 +1,143 @@
+// sherpa-onnx/csrc/provider-config.cc
+//
+// Copyright (c)  2024  Uniphore (Author: Manickavela)
+
+#include "sherpa-onnx/csrc/provider-config.h"
+
+#include <sstream>
+
+#include "sherpa-onnx/csrc/file-utils.h"
+#include "sherpa-onnx/csrc/macros.h"
+
+namespace sherpa_onnx {
+
+void CudaConfig::Register(ParseOptions *po) {
+  po->Register("cuda-cudnn-conv-algo-search", &cudnn_conv_algo_search,
+          "CuDNN convolution algrorithm search");
+}
+
+bool CudaConfig::Validate() const {
+  if (cudnn_conv_algo_search < 1 || cudnn_conv_algo_search > 3) {
+    SHERPA_ONNX_LOGE("cudnn_conv_algo_search: '%d' is not a valid option."
+                     "Options : [1,3]. Check OnnxRT docs",
+                    cudnn_conv_algo_search);
+    return false;
+  }
+  return true;
+}
+
+std::string CudaConfig::ToString() const {
+  std::ostringstream os;
+
+  os << "CudaConfig(";
+  os << "cudnn_conv_algo_search=" << cudnn_conv_algo_search << ")";
+
+  return os.str();
+}
+
+void TensorrtConfig::Register(ParseOptions *po) {
+  po->Register("trt-max-workspace-size", &trt_max_workspace_size,
+              "Set TensorRT EP GPU memory usage limit.");
+  po->Register("trt-max-partition-iterations", &trt_max_partition_iterations,
+              "Limit partitioning iterations for model conversion.");
+  po->Register("trt-min-subgraph-size", &trt_min_subgraph_size,
+              "Set minimum size for subgraphs in partitioning.");
+  po->Register("trt-fp16-enable", &trt_fp16_enable,
+              "Enable FP16 precision for faster performance.");
+  po->Register("trt-detailed-build-log", &trt_detailed_build_log,
+              "Enable detailed logging of build steps.");
+  po->Register("trt-engine-cache-enable", &trt_engine_cache_enable,
+              "Enable caching of TensorRT engines.");
+  po->Register("trt-timing-cache-enable", &trt_timing_cache_enable,
+              "Enable use of timing cache to speed up builds.");
+  po->Register("trt-engine-cache-path", &trt_engine_cache_path,
+              "Set path to store cached TensorRT engines.");
+  po->Register("trt-timing-cache-path", &trt_timing_cache_path,
+              "Set path for storing timing cache.");
+  po->Register("trt-dump-subgraphs", &trt_dump_subgraphs,
+              "Dump optimized subgraphs for debugging.");
+}
+
+bool TensorrtConfig::Validate() const {
+  if (trt_max_workspace_size < 0) {
+    SHERPA_ONNX_LOGE("trt_max_workspace_size: %d is not valid.",
+        trt_max_workspace_size);
+    return false;
+  }
+  if (trt_max_partition_iterations < 0) {
+    SHERPA_ONNX_LOGE("trt_max_partition_iterations: %d is not valid.",
+        trt_max_partition_iterations);
+    return false;
+  }
+  if (trt_min_subgraph_size < 0) {
+    SHERPA_ONNX_LOGE("trt_min_subgraph_size: %d is not valid.",
+        trt_min_subgraph_size);
+    return false;
+  }
+
+  return true;
+}
+
+std::string TensorrtConfig::ToString() const {
+  std::ostringstream os;
+
+  os << "TensorrtConfig(";
+  os << "trt_max_workspace_size=" << trt_max_workspace_size << ", ";
+  os << "trt_max_partition_iterations="
+      << trt_max_partition_iterations << ", ";
+  os << "trt_min_subgraph_size=" << trt_min_subgraph_size << ", ";
+  os << "trt_fp16_enable=\""
+      << (trt_fp16_enable? "True" : "False") << "\", ";
+  os << "trt_detailed_build_log=\""
+      << (trt_detailed_build_log? "True" : "False") << "\", ";
+  os << "trt_engine_cache_enable=\""
+      << (trt_engine_cache_enable? "True" : "False") << "\", ";
+  os << "trt_engine_cache_path=\""
+      << trt_engine_cache_path.c_str() << "\", ";
+  os << "trt_timing_cache_enable=\""
+      << (trt_timing_cache_enable? "True" : "False") << "\", ";
+  os << "trt_timing_cache_path=\""
+      << trt_timing_cache_path.c_str() << "\",";
+  os << "trt_dump_subgraphs=\""
+      << (trt_dump_subgraphs? "True" : "False") << "\" )";
+  return os.str();
+}
+
+void ProviderConfig::Register(ParseOptions *po) {
+  cuda_config.Register(po);
+  trt_config.Register(po);
+
+  po->Register("device", &device, "GPU device index for CUDA and Trt EP");
+  po->Register("provider", &provider,
+               "Specify a provider to use: cpu, cuda, coreml");
+}
+
+bool ProviderConfig::Validate() const {
+  if (device < 0) {
+    SHERPA_ONNX_LOGE("device: '%d' is invalid.", device);
+    return false;
+  }
+
+  if (provider == "cuda" && !cuda_config.Validate()) {
+    return false;
+  }
+
+  if (provider == "trt" && !trt_config.Validate()) {
+    return false;
+  }
+
+  return true;
+}
+
+std::string ProviderConfig::ToString() const {
+  std::ostringstream os;
+
+  os << "ProviderConfig(";
+  os << "device=" << device << ", ";
+  os << "provider=\"" << provider << "\", ";
+  os << "cuda_config=" << cuda_config.ToString() << ", ";
+  os << "trt_config=" << trt_config.ToString() << ")";
+  return os.str();
+}
+
+}  // namespace sherpa_onnx
diff --git a/sherpa-onnx/csrc/provider-config.h b/sherpa-onnx/csrc/provider-config.h
new file mode 100644
index 00000000..ff960790
--- /dev/null
+++ b/sherpa-onnx/csrc/provider-config.h
@@ -0,0 +1,95 @@
+// sherpa-onnx/csrc/provider-config.h
+//
+// Copyright (c)  2024  Uniphore (Author: Manickavela)
+
+#ifndef SHERPA_ONNX_CSRC_PROVIDER_CONFIG_H_
+#define SHERPA_ONNX_CSRC_PROVIDER_CONFIG_H_
+
+#include <string>
+
+#include "sherpa-onnx/csrc/parse-options.h"
+#include "sherpa-onnx/csrc/macros.h"
+#include "onnxruntime_cxx_api.h"  // NOLINT
+
+namespace sherpa_onnx {
+
+struct CudaConfig {
+  int32_t cudnn_conv_algo_search = OrtCudnnConvAlgoSearchHeuristic;
+
+  CudaConfig() = default;
+  explicit CudaConfig(int32_t cudnn_conv_algo_search)
+      : cudnn_conv_algo_search(cudnn_conv_algo_search) {}
+
+  void Register(ParseOptions *po);
+  bool Validate() const;
+
+  std::string ToString() const;
+};
+
+struct TensorrtConfig {
+  int32_t trt_max_workspace_size = 2147483647;
+  int32_t trt_max_partition_iterations = 10;
+  int32_t trt_min_subgraph_size = 5;
+  bool trt_fp16_enable = true;
+  bool trt_detailed_build_log = false;
+  bool trt_engine_cache_enable = true;
+  bool trt_timing_cache_enable = true;
+  std::string trt_engine_cache_path = ".";
+  std::string trt_timing_cache_path = ".";
+  bool trt_dump_subgraphs = false;
+
+  TensorrtConfig() = default;
+  TensorrtConfig(int32_t trt_max_workspace_size,
+                int32_t trt_max_partition_iterations,
+                int32_t trt_min_subgraph_size,
+                bool trt_fp16_enable,
+                bool trt_detailed_build_log,
+                bool trt_engine_cache_enable,
+                bool trt_timing_cache_enable,
+                const std::string &trt_engine_cache_path,
+                const std::string &trt_timing_cache_path,
+                bool trt_dump_subgraphs)
+      : trt_max_workspace_size(trt_max_workspace_size),
+      trt_max_partition_iterations(trt_max_partition_iterations),
+      trt_min_subgraph_size(trt_min_subgraph_size),
+      trt_fp16_enable(trt_fp16_enable),
+      trt_detailed_build_log(trt_detailed_build_log),
+      trt_engine_cache_enable(trt_engine_cache_enable),
+      trt_timing_cache_enable(trt_timing_cache_enable),
+      trt_engine_cache_path(trt_engine_cache_path),
+      trt_timing_cache_path(trt_timing_cache_path),
+      trt_dump_subgraphs(trt_dump_subgraphs) {}
+
+  void Register(ParseOptions *po);
+  bool Validate() const;
+
+  std::string ToString() const;
+};
+
+struct ProviderConfig {
+  TensorrtConfig trt_config;
+  CudaConfig cuda_config;
+  std::string provider = "cpu";
+  int32_t device = 0;
+  // device only used for cuda and trt
+
+  ProviderConfig() = default;
+  ProviderConfig(const std::string &provider,
+                int32_t device)
+      : provider(provider), device(device) {}
+  ProviderConfig(const TensorrtConfig &trt_config,
+                const CudaConfig &cuda_config,
+                const std::string &provider,
+                int32_t device)
+      : trt_config(trt_config), cuda_config(cuda_config),
+      provider(provider), device(device) {}
+
+  void Register(ParseOptions *po);
+  bool Validate() const;
+
+  std::string ToString() const;
+};
+
+}  // namespace sherpa_onnx
+
+#endif  // SHERPA_ONNX_CSRC_PROVIDER_CONFIG_H_
diff --git a/sherpa-onnx/csrc/provider.h b/sherpa-onnx/csrc/provider.h
index c104d401..712006f2 100644
--- a/sherpa-onnx/csrc/provider.h
+++ b/sherpa-onnx/csrc/provider.h
@@ -7,6 +7,7 @@
 
 #include <string>
 
+#include "sherpa-onnx/csrc/provider-config.h"
 namespace sherpa_onnx {
 
 // Please refer to
diff --git a/sherpa-onnx/csrc/session.cc b/sherpa-onnx/csrc/session.cc
index 0f6ed89d..b6fdaaa8 100644
--- a/sherpa-onnx/csrc/session.cc
+++ b/sherpa-onnx/csrc/session.cc
@@ -32,11 +32,13 @@ static void OrtStatusFailure(OrtStatus *status, const char *s) {
 }
 
 static Ort::SessionOptions GetSessionOptionsImpl(int32_t num_threads,
-                                                 std::string provider_str) {
-  Provider p = StringToProvider(std::move(provider_str));
+    const std::string &provider_str,
+    const ProviderConfig *provider_config = nullptr) {
+  Provider p = StringToProvider(provider_str);
 
   Ort::SessionOptions sess_opts;
   sess_opts.SetIntraOpNumThreads(num_threads);
+
   sess_opts.SetInterOpNumThreads(num_threads);
 
   std::vector<std::string> available_providers = Ort::GetAvailableProviders();
@@ -64,26 +66,51 @@ static Ort::SessionOptions GetSessionOptionsImpl(int32_t num_threads,
       break;
     }
     case Provider::kTRT: {
+      if (provider_config == nullptr) {
+        SHERPA_ONNX_LOGE("Tensorrt support for Online models ony,"
+                         "Must be extended for offline and others");
+        exit(1);
+      }
+      auto trt_config = provider_config->trt_config;
       struct TrtPairs {
         const char *op_keys;
         const char *op_values;
       };
 
+      auto device_id = std::to_string(provider_config->device);
+      auto trt_max_workspace_size =
+          std::to_string(trt_config.trt_max_workspace_size);
+      auto trt_max_partition_iterations =
+          std::to_string(trt_config.trt_max_partition_iterations);
+      auto trt_min_subgraph_size =
+          std::to_string(trt_config.trt_min_subgraph_size);
+      auto trt_fp16_enable =
+          std::to_string(trt_config.trt_fp16_enable);
+      auto trt_detailed_build_log =
+          std::to_string(trt_config.trt_detailed_build_log);
+      auto trt_engine_cache_enable =
+          std::to_string(trt_config.trt_engine_cache_enable);
+      auto trt_timing_cache_enable =
+          std::to_string(trt_config.trt_timing_cache_enable);
+      auto trt_dump_subgraphs =
+          std::to_string(trt_config.trt_dump_subgraphs);
+
       std::vector<TrtPairs> trt_options = {
-          {"device_id", "0"},
-          {"trt_max_workspace_size", "2147483648"},
-          {"trt_max_partition_iterations", "10"},
-          {"trt_min_subgraph_size", "5"},
-          {"trt_fp16_enable", "0"},
-          {"trt_detailed_build_log", "0"},
-          {"trt_engine_cache_enable", "1"},
-          {"trt_engine_cache_path", "."},
-          {"trt_timing_cache_enable", "1"},
-          {"trt_timing_cache_path", "."}};
+        {"device_id", device_id.c_str()},
+        {"trt_max_workspace_size", trt_max_workspace_size.c_str()},
+        {"trt_max_partition_iterations", trt_max_partition_iterations.c_str()},
+        {"trt_min_subgraph_size", trt_min_subgraph_size.c_str()},
+        {"trt_fp16_enable", trt_fp16_enable.c_str()},
+        {"trt_detailed_build_log", trt_detailed_build_log.c_str()},
+        {"trt_engine_cache_enable", trt_engine_cache_enable.c_str()},
+        {"trt_engine_cache_path", trt_config.trt_engine_cache_path.c_str()},
+        {"trt_timing_cache_enable", trt_timing_cache_enable.c_str()},
+        {"trt_timing_cache_path", trt_config.trt_timing_cache_path.c_str()},
+        {"trt_dump_subgraphs", trt_dump_subgraphs.c_str()}
+      };
       // ToDo : Trt configs
       // "trt_int8_enable"
       // "trt_int8_use_native_calibration_table"
-      // "trt_dump_subgraphs"
 
       std::vector<const char *> option_keys, option_values;
       for (const TrtPairs &pair : trt_options) {
@@ -122,10 +149,18 @@ static Ort::SessionOptions GetSessionOptionsImpl(int32_t num_threads,
                     "CUDAExecutionProvider") != available_providers.end()) {
         // The CUDA provider is available, proceed with setting the options
         OrtCUDAProviderOptions options;
-        options.device_id = 0;
-        // Default OrtCudnnConvAlgoSearchExhaustive is extremely slow
-        options.cudnn_conv_algo_search = OrtCudnnConvAlgoSearchHeuristic;
-        // set more options on need
+
+        if (provider_config != nullptr) {
+          options.device_id = provider_config->device;
+          options.cudnn_conv_algo_search =
+              OrtCudnnConvAlgoSearch(provider_config->cuda_config
+                .cudnn_conv_algo_search);
+        } else {
+          options.device_id = 0;
+          // Default OrtCudnnConvAlgoSearchExhaustive is extremely slow
+          options.cudnn_conv_algo_search = OrtCudnnConvAlgoSearchHeuristic;
+          // set more options on need
+        }
         sess_opts.AppendExecutionProvider_CUDA(options);
       } else {
         SHERPA_ONNX_LOGE(
@@ -184,7 +219,8 @@ static Ort::SessionOptions GetSessionOptionsImpl(int32_t num_threads,
 }
 
 Ort::SessionOptions GetSessionOptions(const OnlineModelConfig &config) {
-  return GetSessionOptionsImpl(config.num_threads, config.provider);
+  return GetSessionOptionsImpl(config.num_threads,
+        config.provider_config.provider, &config.provider_config);
 }
 
 Ort::SessionOptions GetSessionOptions(const OfflineModelConfig &config) {
diff --git a/sherpa-onnx/jni/keyword-spotter.cc b/sherpa-onnx/jni/keyword-spotter.cc
index 7a05b485..ca0c229c 100644
--- a/sherpa-onnx/jni/keyword-spotter.cc
+++ b/sherpa-onnx/jni/keyword-spotter.cc
@@ -94,7 +94,7 @@ static KeywordSpotterConfig GetKwsConfig(JNIEnv *env, jobject config) {
   fid = env->GetFieldID(model_config_cls, "provider", "Ljava/lang/String;");
   s = (jstring)env->GetObjectField(model_config, fid);
   p = env->GetStringUTFChars(s, nullptr);
-  ans.model_config.provider = p;
+  ans.model_config.provider_config.provider = p;
   env->ReleaseStringUTFChars(s, p);
 
   fid = env->GetFieldID(model_config_cls, "modelType", "Ljava/lang/String;");
diff --git a/sherpa-onnx/jni/online-recognizer.cc b/sherpa-onnx/jni/online-recognizer.cc
index d8acd0fe..643b037b 100644
--- a/sherpa-onnx/jni/online-recognizer.cc
+++ b/sherpa-onnx/jni/online-recognizer.cc
@@ -198,7 +198,7 @@ static OnlineRecognizerConfig GetConfig(JNIEnv *env, jobject config) {
   fid = env->GetFieldID(model_config_cls, "provider", "Ljava/lang/String;");
   s = (jstring)env->GetObjectField(model_config, fid);
   p = env->GetStringUTFChars(s, nullptr);
-  ans.model_config.provider = p;
+  ans.model_config.provider_config.provider = p;
   env->ReleaseStringUTFChars(s, p);
 
   fid = env->GetFieldID(model_config_cls, "modelType", "Ljava/lang/String;");
diff --git a/sherpa-onnx/python/csrc/CMakeLists.txt b/sherpa-onnx/python/csrc/CMakeLists.txt
index 6d61d11d..5e74a172 100644
--- a/sherpa-onnx/python/csrc/CMakeLists.txt
+++ b/sherpa-onnx/python/csrc/CMakeLists.txt
@@ -3,6 +3,7 @@ include_directories(${CMAKE_SOURCE_DIR})
 set(srcs
   audio-tagging.cc
   circular-buffer.cc
+  cuda-config.cc
   display.cc
   endpoint.cc
   features.cc
@@ -30,11 +31,13 @@ set(srcs
   online-transducer-model-config.cc
   online-wenet-ctc-model-config.cc
   online-zipformer2-ctc-model-config.cc
+  provider-config.cc
   sherpa-onnx.cc
   silero-vad-model-config.cc
   speaker-embedding-extractor.cc
   speaker-embedding-manager.cc
   spoken-language-identification.cc
+  tensorrt-config.cc
   vad-model-config.cc
   vad-model.cc
   voice-activity-detector.cc
diff --git a/sherpa-onnx/python/csrc/cuda-config.cc b/sherpa-onnx/python/csrc/cuda-config.cc
new file mode 100644
index 00000000..43627d3a
--- /dev/null
+++ b/sherpa-onnx/python/csrc/cuda-config.cc
@@ -0,0 +1,24 @@
+// sherpa-onnx/python/csrc/cuda-config.cc
+//
+// Copyright (c)  2024  Uniphore (Author: Manickavela A)
+
+#include "sherpa-onnx/python/csrc/cuda-config.h"
+
+#include <memory>
+#include <string>
+
+#include "sherpa-onnx/csrc/provider-config.h"
+
+namespace sherpa_onnx {
+
+void PybindCudaConfig(py::module *m) {
+  using PyClass = CudaConfig;
+  py::class_<PyClass>(*m, "CudaConfig")
+      .def(py::init<>())
+      .def(py::init<int32_t>(),
+           py::arg("cudnn_conv_algo_search") = 1)
+      .def_readwrite("cudnn_conv_algo_search", &PyClass::cudnn_conv_algo_search)
+      .def("__str__", &PyClass::ToString);
+}
+
+}  // namespace sherpa_onnx
diff --git a/sherpa-onnx/python/csrc/cuda-config.h b/sherpa-onnx/python/csrc/cuda-config.h
new file mode 100644
index 00000000..012fb29e
--- /dev/null
+++ b/sherpa-onnx/python/csrc/cuda-config.h
@@ -0,0 +1,16 @@
+// sherpa-onnx/python/csrc/cuda-config.h
+//
+// Copyright (c)  2024  Uniphore (Author: Manickavela A)
+
+#ifndef SHERPA_ONNX_PYTHON_CSRC_CUDA_CONFIG_H_
+#define SHERPA_ONNX_PYTHON_CSRC_CUDA_CONFIG_H_
+
+#include "sherpa-onnx/python/csrc/sherpa-onnx.h"
+
+namespace sherpa_onnx {
+
+void PybindCudaConfig(py::module *m);
+
+}
+
+#endif  // SHERPA_ONNX_PYTHON_CSRC_CUDA_CONFIG_H_
diff --git a/sherpa-onnx/python/csrc/online-model-config.cc b/sherpa-onnx/python/csrc/online-model-config.cc
index d6db809b..4ea13fd6 100644
--- a/sherpa-onnx/python/csrc/online-model-config.cc
+++ b/sherpa-onnx/python/csrc/online-model-config.cc
@@ -9,11 +9,13 @@
 
 #include "sherpa-onnx/csrc/online-model-config.h"
 #include "sherpa-onnx/csrc/online-transducer-model-config.h"
+#include "sherpa-onnx/csrc/provider-config.h"
 #include "sherpa-onnx/python/csrc/online-nemo-ctc-model-config.h"
 #include "sherpa-onnx/python/csrc/online-paraformer-model-config.h"
 #include "sherpa-onnx/python/csrc/online-transducer-model-config.h"
 #include "sherpa-onnx/python/csrc/online-wenet-ctc-model-config.h"
 #include "sherpa-onnx/python/csrc/online-zipformer2-ctc-model-config.h"
+#include "sherpa-onnx/python/csrc/provider-config.h"
 
 namespace sherpa_onnx {
 
@@ -23,6 +25,7 @@ void PybindOnlineModelConfig(py::module *m) {
   PybindOnlineWenetCtcModelConfig(m);
   PybindOnlineZipformer2CtcModelConfig(m);
   PybindOnlineNeMoCtcModelConfig(m);
+  PybindProviderConfig(m);
 
   using PyClass = OnlineModelConfig;
   py::class_<PyClass>(*m, "OnlineModelConfig")
@@ -30,33 +33,34 @@ void PybindOnlineModelConfig(py::module *m) {
                     const OnlineParaformerModelConfig &,
                     const OnlineWenetCtcModelConfig &,
                     const OnlineZipformer2CtcModelConfig &,
-                    const OnlineNeMoCtcModelConfig &, const std::string &,
-                    int32_t, int32_t, bool, const std::string &,
-                    const std::string &, const std::string &,
+                    const OnlineNeMoCtcModelConfig &,
+                    const ProviderConfig &,
+                    const std::string &, int32_t, int32_t,
+                    bool, const std::string &, const std::string &,
                     const std::string &>(),
            py::arg("transducer") = OnlineTransducerModelConfig(),
            py::arg("paraformer") = OnlineParaformerModelConfig(),
            py::arg("wenet_ctc") = OnlineWenetCtcModelConfig(),
            py::arg("zipformer2_ctc") = OnlineZipformer2CtcModelConfig(),
-           py::arg("nemo_ctc") = OnlineNeMoCtcModelConfig(), py::arg("tokens"),
-           py::arg("num_threads"), py::arg("warm_up") = 0,
-           py::arg("debug") = false, py::arg("provider") = "cpu",
-           py::arg("model_type") = "", py::arg("modeling_unit") = "",
-           py::arg("bpe_vocab") = "")
+           py::arg("nemo_ctc") = OnlineNeMoCtcModelConfig(),
+           py::arg("provider_config") = ProviderConfig(),
+           py::arg("tokens"), py::arg("num_threads"), py::arg("warm_up") = 0,
+           py::arg("debug") = false, py::arg("model_type") = "",
+           py::arg("modeling_unit") = "", py::arg("bpe_vocab") = "")
       .def_readwrite("transducer", &PyClass::transducer)
       .def_readwrite("paraformer", &PyClass::paraformer)
       .def_readwrite("wenet_ctc", &PyClass::wenet_ctc)
       .def_readwrite("zipformer2_ctc", &PyClass::zipformer2_ctc)
       .def_readwrite("nemo_ctc", &PyClass::nemo_ctc)
+      .def_readwrite("provider_config", &PyClass::provider_config)
       .def_readwrite("tokens", &PyClass::tokens)
       .def_readwrite("num_threads", &PyClass::num_threads)
+      .def_readwrite("warm_up", &PyClass::warm_up)
       .def_readwrite("debug", &PyClass::debug)
-      .def_readwrite("provider", &PyClass::provider)
       .def_readwrite("model_type", &PyClass::model_type)
       .def_readwrite("modeling_unit", &PyClass::modeling_unit)
       .def_readwrite("bpe_vocab", &PyClass::bpe_vocab)
       .def("validate", &PyClass::Validate)
       .def("__str__", &PyClass::ToString);
 }
-
 }  // namespace sherpa_onnx
diff --git a/sherpa-onnx/python/csrc/provider-config.cc b/sherpa-onnx/python/csrc/provider-config.cc
new file mode 100644
index 00000000..c29d48ab
--- /dev/null
+++ b/sherpa-onnx/python/csrc/provider-config.cc
@@ -0,0 +1,39 @@
+// sherpa-onnx/python/csrc/provider-config.cc
+//
+// Copyright (c)  2024  Uniphore (Author: Manickavela A)
+
+
+#include "sherpa-onnx/python/csrc/provider-config.h"
+
+#include <string>
+
+#include "sherpa-onnx/csrc/provider-config.h"
+#include "sherpa-onnx/python/csrc/cuda-config.h"
+#include "sherpa-onnx/python/csrc/tensorrt-config.h"
+
+namespace sherpa_onnx {
+
+void PybindProviderConfig(py::module *m) {
+  PybindCudaConfig(m);
+  PybindTensorrtConfig(m);
+
+  using PyClass = ProviderConfig;
+  py::class_<PyClass>(*m, "ProviderConfig")
+      .def(py::init<>())
+      .def(py::init<const std::string &, int32_t>(),
+           py::arg("provider") = "cpu",
+           py::arg("device") = 0)
+      .def(py::init<const TensorrtConfig &, const CudaConfig &,
+          const std::string &, int32_t>(),
+           py::arg("trt_config") = TensorrtConfig{},
+           py::arg("cuda_config") = CudaConfig{},
+           py::arg("provider") = "cpu",
+           py::arg("device") = 0)
+      .def_readwrite("trt_config", &PyClass::trt_config)
+      .def_readwrite("cuda_config", &PyClass::cuda_config)
+      .def_readwrite("provider", &PyClass::provider)
+      .def_readwrite("device", &PyClass::device)
+      .def("__str__", &PyClass::ToString)
+      .def("validate", &PyClass::Validate);
+}
+}  // namespace sherpa_onnx
diff --git a/sherpa-onnx/python/csrc/provider-config.h b/sherpa-onnx/python/csrc/provider-config.h
new file mode 100644
index 00000000..76377dde
--- /dev/null
+++ b/sherpa-onnx/python/csrc/provider-config.h
@@ -0,0 +1,16 @@
+// sherpa-onnx/python/csrc/provider-config.h
+//
+// Copyright (c)  2024  Uniphore (Author: Manickavela A)
+
+#ifndef SHERPA_ONNX_PYTHON_CSRC_PROVIDER_CONFIG_H_
+#define SHERPA_ONNX_PYTHON_CSRC_PROVIDER_CONFIG_H_
+
+#include "sherpa-onnx/python/csrc/sherpa-onnx.h"
+
+namespace sherpa_onnx {
+
+void PybindProviderConfig(py::module *m);
+
+}
+
+#endif  // SHERPA_ONNX_PYTHON_CSRC_PROVIDER_CONFIG_H_
diff --git a/sherpa-onnx/python/csrc/sherpa-onnx.cc b/sherpa-onnx/python/csrc/sherpa-onnx.cc
index 242d8597..5b369ed8 100644
--- a/sherpa-onnx/python/csrc/sherpa-onnx.cc
+++ b/sherpa-onnx/python/csrc/sherpa-onnx.cc
@@ -51,7 +51,6 @@ PYBIND11_MODULE(_sherpa_onnx, m) {
   PybindEndpoint(&m);
   PybindOnlineRecognizer(&m);
   PybindKeywordSpotter(&m);
-
   PybindDisplay(&m);
 
   PybindOfflineStream(&m);
diff --git a/sherpa-onnx/python/csrc/tensorrt-config.cc b/sherpa-onnx/python/csrc/tensorrt-config.cc
new file mode 100644
index 00000000..87962a2d
--- /dev/null
+++ b/sherpa-onnx/python/csrc/tensorrt-config.cc
@@ -0,0 +1,72 @@
+// sherpa-onnx/python/csrc/tensorrt-config.cc
+//
+// Copyright (c)  2024  Uniphore (Author: Manickavela A)
+
+#include "sherpa-onnx/python/csrc/tensorrt-config.h"
+
+#include <string>
+#include <memory>
+#include "sherpa-onnx/csrc/provider-config.h"
+
+namespace sherpa_onnx {
+
+void PybindTensorrtConfig(py::module *m) {
+  using PyClass = TensorrtConfig;
+  py::class_<PyClass>(*m, "TensorrtConfig")
+        .def(py::init<>())
+        .def(py::init([](int32_t trt_max_workspace_size,
+                      int32_t trt_max_partition_iterations,
+                      int32_t trt_min_subgraph_size,
+                      bool trt_fp16_enable,
+                      bool trt_detailed_build_log,
+                      bool trt_engine_cache_enable,
+                      bool trt_timing_cache_enable,
+                      const std::string &trt_engine_cache_path,
+                      const std::string &trt_timing_cache_path,
+                      bool trt_dump_subgraphs) -> std::unique_ptr<PyClass> {
+            auto ans = std::make_unique<PyClass>();
+
+            ans->trt_max_workspace_size = trt_max_workspace_size;
+            ans->trt_max_partition_iterations = trt_max_partition_iterations;
+            ans->trt_min_subgraph_size = trt_min_subgraph_size;
+            ans->trt_fp16_enable = trt_fp16_enable;
+            ans->trt_detailed_build_log = trt_detailed_build_log;
+            ans->trt_engine_cache_enable = trt_engine_cache_enable;
+            ans->trt_timing_cache_enable = trt_timing_cache_enable;
+            ans->trt_engine_cache_path = trt_engine_cache_path;
+            ans->trt_timing_cache_path = trt_timing_cache_path;
+            ans->trt_dump_subgraphs = trt_dump_subgraphs;
+
+            return ans;
+          }),
+           py::arg("trt_max_workspace_size") = 2147483647,
+           py::arg("trt_max_partition_iterations") = 10,
+           py::arg("trt_min_subgraph_size") = 5,
+           py::arg("trt_fp16_enable") = true,
+           py::arg("trt_detailed_build_log") = false,
+           py::arg("trt_engine_cache_enable") = true,
+           py::arg("trt_timing_cache_enable") = true,
+           py::arg("trt_engine_cache_path") = ".",
+           py::arg("trt_timing_cache_path") = ".",
+           py::arg("trt_dump_subgraphs") = false)
+
+      .def_readwrite("trt_max_workspace_size",
+          &PyClass::trt_max_workspace_size)
+      .def_readwrite("trt_max_partition_iterations",
+          &PyClass::trt_max_partition_iterations)
+      .def_readwrite("trt_min_subgraph_size", &PyClass::trt_min_subgraph_size)
+      .def_readwrite("trt_fp16_enable", &PyClass::trt_fp16_enable)
+      .def_readwrite("trt_detailed_build_log",
+          &PyClass::trt_detailed_build_log)
+      .def_readwrite("trt_engine_cache_enable",
+          &PyClass::trt_engine_cache_enable)
+      .def_readwrite("trt_timing_cache_enable",
+          &PyClass::trt_timing_cache_enable)
+      .def_readwrite("trt_engine_cache_path", &PyClass::trt_engine_cache_path)
+      .def_readwrite("trt_timing_cache_path", &PyClass::trt_timing_cache_path)
+      .def_readwrite("trt_dump_subgraphs", &PyClass::trt_dump_subgraphs)
+      .def("__str__", &PyClass::ToString)
+      .def("validate", &PyClass::Validate);
+}
+
+}  // namespace sherpa_onnx
diff --git a/sherpa-onnx/python/csrc/tensorrt-config.h b/sherpa-onnx/python/csrc/tensorrt-config.h
new file mode 100644
index 00000000..d8eea700
--- /dev/null
+++ b/sherpa-onnx/python/csrc/tensorrt-config.h
@@ -0,0 +1,16 @@
+// sherpa-onnx/python/csrc/tensorrt-config.h
+//
+// Copyright (c)  2024  Uniphore (Author: Manickavela A)
+
+#ifndef SHERPA_ONNX_PYTHON_CSRC_TENSORRT_CONFIG_H_
+#define SHERPA_ONNX_PYTHON_CSRC_TENSORRT_CONFIG_H_
+
+#include "sherpa-onnx/python/csrc/sherpa-onnx.h"
+
+namespace sherpa_onnx {
+
+void PybindTensorrtConfig(py::module *m);
+
+}
+
+#endif  // SHERPA_ONNX_PYTHON_CSRC_TENSORRT_CONFIG_H_
diff --git a/sherpa-onnx/python/sherpa_onnx/keyword_spotter.py b/sherpa-onnx/python/sherpa_onnx/keyword_spotter.py
index 218628ea..66d71698 100644
--- a/sherpa-onnx/python/sherpa_onnx/keyword_spotter.py
+++ b/sherpa-onnx/python/sherpa_onnx/keyword_spotter.py
@@ -9,6 +9,7 @@ from _sherpa_onnx import (
     OnlineModelConfig,
     OnlineTransducerModelConfig,
     OnlineStream,
+    ProviderConfig,
 )
 
 from _sherpa_onnx import KeywordSpotter as _KeywordSpotter
@@ -41,6 +42,7 @@ class KeywordSpotter(object):
         keywords_threshold: float = 0.25,
         num_trailing_blanks: int = 1,
         provider: str = "cpu",
+        device: int = 0,
     ):
         """
         Please refer to
@@ -85,6 +87,8 @@ class KeywordSpotter(object):
             between each other.
           provider:
             onnxruntime execution providers. Valid values are: cpu, cuda, coreml.
+          device:
+            onnxruntime cuda device index.
         """
         _assert_file_exists(tokens)
         _assert_file_exists(encoder)
@@ -99,11 +103,16 @@ class KeywordSpotter(object):
             joiner=joiner,
         )
 
+        provider_config = ProviderConfig(
+          provider=provider,
+          device = device,
+        )
+
         model_config = OnlineModelConfig(
             transducer=transducer_config,
             tokens=tokens,
             num_threads=num_threads,
-            provider=provider,
+            provider_config=provider_config,
         )
 
         feat_config = FeatureExtractorConfig(
diff --git a/sherpa-onnx/python/sherpa_onnx/online_recognizer.py b/sherpa-onnx/python/sherpa_onnx/online_recognizer.py
index 82b2e3b4..779ba6e7 100644
--- a/sherpa-onnx/python/sherpa_onnx/online_recognizer.py
+++ b/sherpa-onnx/python/sherpa_onnx/online_recognizer.py
@@ -11,6 +11,9 @@ from _sherpa_onnx import (
 )
 from _sherpa_onnx import OnlineRecognizer as _Recognizer
 from _sherpa_onnx import (
+    CudaConfig,
+    TensorrtConfig,
+    ProviderConfig,
     OnlineRecognizerConfig,
     OnlineRecognizerResult,
     OnlineStream,
@@ -56,7 +59,6 @@ class OnlineRecognizer(object):
         hotwords_score: float = 1.5,
         blank_penalty: float = 0.0,
         hotwords_file: str = "",
-        provider: str = "cpu",
         model_type: str = "",
         modeling_unit: str = "cjkchar",
         bpe_vocab: str = "",
@@ -66,6 +68,19 @@ class OnlineRecognizer(object):
         debug: bool = False,
         rule_fsts: str = "",
         rule_fars: str = "",
+        provider: str = "cpu",
+        device: int = 0,
+        cudnn_conv_algo_search: int = 1,
+        trt_max_workspace_size: int = 2147483647,
+        trt_max_partition_iterations: int = 10,
+        trt_min_subgraph_size: int = 5,
+        trt_fp16_enable: bool = True,
+        trt_detailed_build_log: bool = False,
+        trt_engine_cache_enable: bool = True,
+        trt_timing_cache_enable: bool = True,
+        trt_engine_cache_path: str ="",
+        trt_timing_cache_path: str ="",
+        trt_dump_subgraphs: bool = False,
     ):
         """
         Please refer to
@@ -135,8 +150,6 @@ class OnlineRecognizer(object):
             Temperature scaling for output symbol confidence estiamation.
             It affects only confidence values, the decoding uses the original
             logits without temperature.
-          provider:
-            onnxruntime execution providers. Valid values are: cpu, cuda, coreml.
           model_type:
             Online transducer model type. Valid values are: conformer, lstm,
             zipformer, zipformer2. All other values lead to loading the model twice.
@@ -156,6 +169,32 @@ class OnlineRecognizer(object):
           rule_fars:
             If not empty, it specifies fst archives for inverse text normalization.
             If there are multiple archives, they are separated by a comma.
+          provider:
+            onnxruntime execution providers. Valid values are: cpu, cuda, coreml.
+          device:
+            onnxruntime cuda device index.
+          cudnn_conv_algo_search:
+            onxrt CuDNN convolution search algorithm selection. CUDA EP
+          trt_max_workspace_size:
+            Set TensorRT EP GPU memory usage limit. TensorRT EP
+          trt_max_partition_iterations:
+            Limit partitioning iterations for model conversion. TensorRT EP
+          trt_min_subgraph_size:
+            Set minimum size for subgraphs in partitioning. TensorRT EP
+          trt_fp16_enable: bool = True,
+            Enable FP16 precision for faster performance. TensorRT EP
+          trt_detailed_build_log: bool = False,
+            Enable detailed logging of build steps. TensorRT EP
+          trt_engine_cache_enable: bool = True,
+            Enable caching of TensorRT engines. TensorRT EP
+          trt_timing_cache_enable: bool = True,
+            "Enable use of timing cache to speed up builds." TensorRT EP
+          trt_engine_cache_path: str ="",
+            "Set path to store cached TensorRT engines." TensorRT EP
+          trt_timing_cache_path: str ="",
+            "Set path for storing timing cache." TensorRT EP
+          trt_dump_subgraphs: bool = False,
+            "Dump optimized subgraphs for debugging." TensorRT EP
         """
         self = cls.__new__(cls)
         _assert_file_exists(tokens)
@@ -171,11 +210,35 @@ class OnlineRecognizer(object):
             joiner=joiner,
         )
 
+        cuda_config = CudaConfig(
+          cudnn_conv_algo_search=cudnn_conv_algo_search,
+        )
+
+        trt_config = TensorrtConfig(
+          trt_max_workspace_size=trt_max_workspace_size,
+          trt_max_partition_iterations=trt_max_partition_iterations,
+          trt_min_subgraph_size=trt_min_subgraph_size,
+          trt_fp16_enable=trt_fp16_enable,
+          trt_detailed_build_log=trt_detailed_build_log,
+          trt_engine_cache_enable=trt_engine_cache_enable,
+          trt_timing_cache_enable=trt_timing_cache_enable,
+          trt_engine_cache_path=trt_engine_cache_path,
+          trt_timing_cache_path=trt_timing_cache_path,
+          trt_dump_subgraphs=trt_dump_subgraphs,
+        )
+
+        provider_config = ProviderConfig(
+          trt_config=trt_config,
+          cuda_config=cuda_config,
+          provider=provider,
+          device=device,
+        )
+
         model_config = OnlineModelConfig(
             transducer=transducer_config,
             tokens=tokens,
             num_threads=num_threads,
-            provider=provider,
+            provider_config=provider_config,
             model_type=model_type,
             modeling_unit=modeling_unit,
             bpe_vocab=bpe_vocab,
@@ -251,6 +314,7 @@ class OnlineRecognizer(object):
         debug: bool = False,
         rule_fsts: str = "",
         rule_fars: str = "",
+        device: int = 0,
     ):
         """
         Please refer to
@@ -301,6 +365,8 @@ class OnlineRecognizer(object):
           rule_fars:
             If not empty, it specifies fst archives for inverse text normalization.
             If there are multiple archives, they are separated by a comma.
+          device:
+            onnxruntime cuda device index.
         """
         self = cls.__new__(cls)
         _assert_file_exists(tokens)
@@ -314,11 +380,16 @@ class OnlineRecognizer(object):
             decoder=decoder,
         )
 
+        provider_config = ProviderConfig(
+          provider=provider,
+          device=device,
+        )
+
         model_config = OnlineModelConfig(
             paraformer=paraformer_config,
             tokens=tokens,
             num_threads=num_threads,
-            provider=provider,
+            provider_config=provider_config,
             model_type="paraformer",
             debug=debug,
         )
@@ -367,6 +438,7 @@ class OnlineRecognizer(object):
         debug: bool = False,
         rule_fsts: str = "",
         rule_fars: str = "",
+        device: int = 0,
     ):
         """
         Please refer to
@@ -421,6 +493,8 @@ class OnlineRecognizer(object):
           rule_fars:
             If not empty, it specifies fst archives for inverse text normalization.
             If there are multiple archives, they are separated by a comma.
+          device:
+            onnxruntime cuda device index.
         """
         self = cls.__new__(cls)
         _assert_file_exists(tokens)
@@ -430,11 +504,16 @@ class OnlineRecognizer(object):
 
         zipformer2_ctc_config = OnlineZipformer2CtcModelConfig(model=model)
 
+        provider_config = ProviderConfig(
+          provider=provider,
+          device=device,
+        )
+
         model_config = OnlineModelConfig(
             zipformer2_ctc=zipformer2_ctc_config,
             tokens=tokens,
             num_threads=num_threads,
-            provider=provider,
+            provider_config=provider_config,
             debug=debug,
         )
 
@@ -486,6 +565,7 @@ class OnlineRecognizer(object):
         debug: bool = False,
         rule_fsts: str = "",
         rule_fars: str = "",
+        device: int = 0,
     ):
         """
         Please refer to
@@ -535,6 +615,8 @@ class OnlineRecognizer(object):
           rule_fars:
             If not empty, it specifies fst archives for inverse text normalization.
             If there are multiple archives, they are separated by a comma.
+          device:
+            onnxruntime cuda device index.
         """
         self = cls.__new__(cls)
         _assert_file_exists(tokens)
@@ -546,11 +628,16 @@ class OnlineRecognizer(object):
             model=model,
         )
 
+        provider_config = ProviderConfig(
+          provider=provider,
+          device=device,
+        )
+
         model_config = OnlineModelConfig(
             nemo_ctc=nemo_ctc_config,
             tokens=tokens,
             num_threads=num_threads,
-            provider=provider,
+            provider_config=provider_config,
             debug=debug,
         )
 
@@ -598,6 +685,7 @@ class OnlineRecognizer(object):
         debug: bool = False,
         rule_fsts: str = "",
         rule_fars: str = "",
+        device: int = 0,
     ):
         """
         Please refer to
@@ -650,6 +738,8 @@ class OnlineRecognizer(object):
           rule_fars:
             If not empty, it specifies fst archives for inverse text normalization.
             If there are multiple archives, they are separated by a comma.
+          device:
+            onnxruntime cuda device index.
         """
         self = cls.__new__(cls)
         _assert_file_exists(tokens)
@@ -663,11 +753,16 @@ class OnlineRecognizer(object):
             num_left_chunks=num_left_chunks,
         )
 
+        provider_config = ProviderConfig(
+          provider=provider,
+          device=device,
+        )
+
         model_config = OnlineModelConfig(
             wenet_ctc=wenet_ctc_config,
             tokens=tokens,
             num_threads=num_threads,
-            provider=provider,
+            provider_config=provider_config,
             debug=debug,
         )