初始化项目，由ModelHub XC社区提供模型
Model: Writer-Org/palmyra-mini-thinking-b Source: Original Platform
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README.md
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README.md
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---
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tags:
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- Coder
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- Math
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- qwen2
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- thinking
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- reasoning
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model-index:
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- name: Palmyra-mini-thinking-b
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results: []
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license: apache-2.0
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language:
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- en
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pipeline_tag: text-generation
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---
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<div align="center">
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<h1>Palmyra-mini-thinking-b</h1>
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</div>
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<p align="center">
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<img src="https://huggingface.co/Writer/palmyra-mini-thinking-b/resolve/main/logo-mini-b%20benchmark-performance.png?download=true" width="800"/>
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</p>
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### Model Description
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- **Language(s) (NLP):** English
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- **License:** Apache-2.0
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- **Finetuned from model:** nvidia/OpenReasoning-Nemotron-1.5B
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- **Context window:** 131,072 tokens
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- **Parameters:** 1.7 billion
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## Introduction
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Palmyra-mini-thinking-b represents a significant step forward in generative AI, demonstrating exceptional capabilities in complex reasoning and problem-solving domains. This model excels in mathematical and programming challenges, showcasing a robust understanding of abstract concepts and logical structures. Its performance is not just a measure of its power but a testament to its specialized training, which has honed its ability to tackle tasks that demand deep, multi-step thinking.
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## Mathematical Prowess
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The model's mathematical abilities are particularly noteworthy. It achieves an impressive score of 0.925 on the AMC23 benchmark, indicating a strong grasp of advanced high school mathematics. This is further complemented by its performance on MATH500, where it scores 0.882, proving its proficiency across a wide range of mathematical problems. The model also shows its strength in competitive mathematics, scoring 0.6 on AIME24(pass@1)(avg-of-1) and 0.5733 on Olympiadbench (extractive_match). These scores highlight the model's capacity for sophisticated mathematical reasoning, making it a powerful tool for both educational and research applications.
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## Excellence in Competitive Programming
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Beyond mathematics, Palmyra-mini-thinking-b demonstrates strong performance in the competitive programming arena. Its score of 0.6343 on the Codeforces (pass_rate) benchmark underscores its ability to understand complex algorithmic problems and generate correct, efficient code. This capability suggests the model is well-suited for tasks involving code generation, debugging, and algorithmic design, making it a valuable asset for software developers and computer science researchers.
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## Benchmark Scores (sampling params: temperature:0.6, top_p:0.95)
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Pass@1(avg-of-64)
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| Benchmark | Pass@1 (avg-of-64) | Majority@64 |
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| :-------- | :------------------- | :----------- |
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| AIME24 | 59.43% | 71.67% |
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| AIME25 | 49.69% | 60.00% |
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| GPQA | 42.01% | 47.22% |
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| HMMT25 | 27.86% | 30.00% |
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| HLE | 5.22% | N/A |
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| MMLU-PRO | 55.49% | 60.60% |
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| MATH500 | 93.80% | 95.40% |
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| LCB | 34.51% | N/A |
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LCB here is version v6_2408_2505
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Pass@1(avg-of-1)
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| Benchmark | Score (%) |
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|:-----------------------------------------------------------------|------------:|
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| GSM8K (strict-match) | 42.68% |
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| Minerva Math (exact match) | 7.08% |
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| MMLU-PRO (exact match) | 29.26% |
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| MATH (Hendrycks) | 0.16% |
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| IFEval (inst_level_loose_acc) | 32.97% |
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| MathQA (acc) | 30.45% |
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| HumanEval (pass@1) | 7.32% |
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| BBH (get-answer)(exact match) | 28.80% |
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| MBPP | 16.80% |
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| GPQA (diamond, pass@1: 8 samples) | 39.58% |
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| AIME24 (pass@1)(avg-of-1) | 60.00% |
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| AIME25 (pass@1)(avg-of-1) | 50.00% |
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| Livecodebench-codegen (livecodebench/code_generation_lite v4_v5) | 28.73% |
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| AMC23 | 92.50% |
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| MATH500 | 88.20% |
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| Minerva | 29.41% |
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| Olympiadbench (extractive_match) | 57.33% |
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| Codecontests (pass_rate) | 20.18% |
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| Codeforces (pass_rate) | 63.43% |
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| Taco (pass_rate) | 34.56% |
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| APPS (all_levels) | 5.84% |
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| HMMT (Feb 2025) (extractive_match) | 23.33% |
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| Average | 35.94% |
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### Use with transformers
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You can run conversational inference using the Transformers Auto classes with the `generate()` function. Here's an example:
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```py
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import torch
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from transformers import AutoTokenizer, AutoModelForCausalLM
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model_id = "Writer/palmyra-mini-thinking-b"
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tokenizer = AutoTokenizer.from_pretrained(model_id)
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model = AutoModelForCausalLM.from_pretrained(
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model_id,
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torch_dtype=torch.float16,
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device_map="auto",
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attn_implementation="flash_attention_2",
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)
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messages = [
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{
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"role": "user",
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"content": "You have a 3-liter jug and a 5-liter jug. How can you measure exactly 4 liters of water?"
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}
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],
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input_ids = tokenizer.apply_chat_template(
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messages, tokenize=True, add_generation_prompt=True, return_tensors="pt"
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)
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gen_conf = {
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"max_new_tokens": 256,
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"eos_token_id": tokenizer.eos_token_id,
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"temperature": 0.3,
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"top_p": 0.9,
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}
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with torch.inference_mode():
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output_id = model.generate(input_ids, **gen_conf)
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output_text = tokenizer.decode(output_id[0][input_ids.shape[1] :])
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print(output_text)
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```
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## Running with vLLM
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```py
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vllm serve Writer/palmyra-mini-thinking-b
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```
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```py
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curl -X POST http://localhost:8000/v1/chat/completions \
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-H "Content-Type: application/json" \
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-d '{
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"model": "Writer/palmyra-mini-thinking-b",
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"messages": [
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{
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"role": "user",
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"content": "You have a 3-liter jug and a 5-liter jug. How can you measure exactly 4 liters of water?"
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}
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],
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"max_tokens": 8000,
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"temperature": 0.2
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}'
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```
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## Ethical Considerations
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As with any language model, there is a potential for generating biased or inaccurate information. Users should be aware of these limitations and use the model responsibly.
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### Footnotes
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- Base model: This model builds on NVIDIA's OpenReasoning-Nemotron-1.5B (`https://huggingface.co/nvidia/OpenReasoning-Nemotron-1.5B`).
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- Evaluation methodology:
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- Pass@1 (avg-of-1): computed using `lm_eval` and `lighteval`.
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- Pass@1 (avg-of-64) and Majority@64: computed using `nemoskills`.
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### Citation and Related Information
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To cite this model:
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```
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@misc{Palmyra-mini-thinking-b,
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author = {Writer Engineering team},
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title = {{Palmyra-mini: A powerful LLM designed for math and coding}},
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howpublished = {\url{https://dev.writer.com}},
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year = 2025,
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month = Sep
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}
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```
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Contact Hello@writer.com
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