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Model: OctoThinker/OctoThinker-1B-Long-Zero
Source: Original Platform

.gitattributes

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README.md

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+---
+license: llama3.2
+datasets:
+- OctoThinker/MegaMath-Web-Pro-Max
+- LLM360/MegaMath
+language:
+- en
+base_model:
+- meta-llama/Llama-3.2-1B
+pipeline_tag: text-generation
+---
+
+# [OctoThinker: Mid-training Incentivizes Reinforcement Learning Scaling](https://arxiv.org/abs/2506.20512)
+
+
+
+## OctoThinker-1B-Long-Zero
+
+
+The OctoThinker family is built on carefully studied mid-training insights, starting from the Llama-3 family, to create a reinforcement learning–friendly base language model.
+
+OctoThinker-1B-Long-Zero is trained using the R1-Zero-style reinforcement learning technique, starting from OctoThinker-1B-Long-Base without any supervised fine-tuning (SFT).
+
+
+
+### Training Recipe for OctoThinker-1B-Long-Base
+
+<div style="display: flex; justify-content: left; gap: 20px;">
+<img src="https://cdn-uploads.huggingface.co/production/uploads/62cbeb2d72dfd24b86bdf977/j-rwxEWP9JhydECkhMpJK.png" alt="Data Pipeline" style="width:90%;">
+</div>
+
+
+### Evaluation Results of OctoThinker-1B-Base Series
+
+Note that we adopt the few-shot prompting evaluation for these base language models.
+
+
+<div style="display: flex; justify-content: left; gap: 20px;">
+<img src="https://cdn-uploads.huggingface.co/production/uploads/62cbeb2d72dfd24b86bdf977/3n1cnG81wLjjPwzyMyQ-o.png" alt="Data Pipeline" style="width:80%;">
+</div>
+
+
+### RL Training Dynamics of OctoThinker-1B-Zero Series
+
+<div style="display: flex; justify-content: left; gap: 20px;">
+<img src="https://cdn-uploads.huggingface.co/production/uploads/62cbeb2d72dfd24b86bdf977/xoiYwO-fsOCdPTKsASJNK.png" alt="Data Pipeline" style="width:80%;">
+</div>
+
+
+### More about OctoThinker
+
+
+<div style="display: flex; justify-content: left; gap: 20px;">
+<img src="https://cdn-uploads.huggingface.co/production/uploads/62cbeb2d72dfd24b86bdf977/bn85CEB_DW6azJ7KJp11Q.png" alt="Data Pipeline" style="width:100%;">
+</div>
+
+
+## Citation
+
+Check out our [paper](https://arxiv.org/abs/2506.20512) for more details. If you use our models, datasets or find our work useful, please cite
+
+```
+@article{wang2025octothinker,
+  title={OctoThinker: Mid-training Incentivizes Reinforcement Learning Scaling},
+  author={Wang, Zengzhi and Zhou, Fan and Li, Xuefeng and Liu, Pengfei},
+  year={2025},
+  journal={arXiv preprint arXiv:2506.20512},
+  note={Preprint}
+}
+```

config.json

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+{
+  "architectures": [
+    "LlamaForCausalLM"
+  ],
+  "attention_bias": false,
+  "attention_dropout": 0.0,
+  "bos_token_id": 128000,
+  "eos_token_id": 128001,
+  "head_dim": 64,
+  "hidden_act": "silu",
+  "hidden_size": 2048,
+  "initializer_range": 0.02,
+  "intermediate_size": 8192,
+  "is_llama_config": true,
+  "max_position_embeddings": 131072,
+  "mlp_bias": false,
+  "model_type": "llama",
+  "num_attention_heads": 32,
+  "num_hidden_layers": 16,
+  "num_key_value_heads": 8,
+  "pad_token_id": 128001,
+  "pretraining_tp": 1,
+  "rms_norm_eps": 1e-05,
+  "rope_interleaved": false,
+  "rope_scaling": {
+    "factor": 32.0,
+    "high_freq_factor": 4.0,
+    "low_freq_factor": 1.0,
+    "original_max_position_embeddings": 8192,
+    "rope_type": "llama3"
+  },
+  "rope_theta": 500000.0,
+  "tie_word_embeddings": true,
+  "torch_dtype": "bfloat16",
+  "transformers_version": "4.51.3",
+  "use_cache": true,
+  "vocab_size": 128256
+}

configuration.json

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+{"framework": "pytorch", "task": "others", "allow_remote": true}

generation_config.json

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+  "bos_token_id": 128000,
+  "eos_token_id": 128001,
+  "pad_token_id": 128001,
+  "transformers_version": "4.51.3"
+}

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special_tokens_map.json

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+}

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