OpenThinker2-32B / README.md
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---
library_name: transformers
license: apache-2.0
base_model: Qwen/Qwen2.5-32B-Instruct
tags:
- llama-factory
- full
- generated_from_trainer
model-index:
- name: OpenThinker2-32B
results: []
datasets:
- open-thoughts/OpenThoughts2-1M
---
<p align="center">
<img src="https://huggingface.co/datasets/open-thoughts/open-thoughts-114k/resolve/main/open_thoughts.png" width="50%">
</p>
# OpenThinker2-32B
This model is a fine-tuned version of [Qwen/Qwen2.5-32B-Instruct](https://huggingface.co/Qwen/Qwen2.5-32B-Instruct) on the
[OpenThoughts2-1M](https://huggingface.co/datasets/open-thoughts/OpenThoughts2-1M) dataset.
The [OpenThinker2-32B](https://huggingface.co/open-thoughts/OpenThinker2-32B) model is the highest performing open-data model.
This model improves upon our previous [OpenThinker-32B](https://huggingface.co/open-thoughts/OpenThinker-32B) model, which was trained on 114k examples from [OpenThoughts-114k](https://huggingface.co/datasets/open-thoughts/open-thoughts-114k).
The numbers reported in the table below are evaluated with our open-source tool [Evalchemy](https://github.com/mlfoundations/Evalchemy).
| Model | Data | AIME24 | AIME25 | AMC23 | MATH500 | GPQA-D | LCBv2 |
| ----------------------------------------------------------------------------------------------- | ---- | ------ | ------ | ----- | ------- | ------ | ----- |
| [OpenThinker2-32B](https://huggingface.co/open-thoughts/OpenThinker2-32B) | βœ… | 76.7 | 58.7 | 94.0 | 90.8 | 64.1 | 72.5 |
| [OpenThinker-32B](https://huggingface.co/open-thoughts/OpenThinker-32B) | βœ… | 68.0 | 49.3 | 95.5 | 90.6 | 63.5 | 68.6 |
| [DeepSeek-R1-Distill-Qwen-32B](https://huggingface.co/deepseek-ai/DeepSeek-R1-Distill-Qwen-32B) | ❌ | 74.7 | 50.0 | 96.5 | 90.0 | 65.8 | 72.3 |
| [Light-R1-32B](https://huggingface.co/qihoo360/Light-R1-32B) | βœ… | 74.7 | 58.0 | 96.0 | 90.4 | 62.0 | 56.0 |
| [S1.1-32B](https://huggingface.co/simplescaling/s1.1-32B) | βœ… | 59.3 | 42.7 | 91.5 | 87.4 | 62.0 | 58.7 |
## Data
This model was trained on the [OpenThoughts2-1M](https://huggingface.co/datasets/open-thoughts/OpenThoughts2-1M) dataset.
The [OpenThoughts2-1M](https://huggingface.co/datasets/open-thoughts/OpenThoughts2-1M) dataset was constructed by augmenting [OpenThoughts-114k](https://huggingface.co/datasets/open-thoughts/open-thoughts-114k) with existing datasets like [OpenR1](https://huggingface.co/open-r1), as well as additional math and code reasoning data.
We generate the additional math and code data by ablating over 26 different question generation methodologies and sampling from the highest performing ones.
See the [OpenThoughts2-1M](https://huggingface.co/datasets/open-thoughts/OpenThoughts2-1M) dataset page or our [blog post](https://www.open-thoughts.ai/blog/thinkagain) for additional information.
## Intended uses & limitations
Apache 2.0 License
## Training procedure
We used 128 4xA100 nodes to train the model for 50 hours.
### Training hyperparameters
The following hyperparameters were used during training:
- learning_rate: 8e-05
- seed: 42
- distributed_type: multi-GPU
- num_devices: 512
- gradient_accumulation_steps: 1
- total_train_batch_size: 512
- optimizer: Use OptimizerNames.ADAMW_TORCH with betas=(0.9,0.999) and epsilon=1e-08 and optimizer_args=No additional optimizer arguments
- lr_scheduler_type: cosine
- lr_scheduler_warmup_ratio: 0.1
- num_epochs: 5.0
### Framework versions
- Transformers 4.46.1
- Pytorch 2.3.0
- Datasets 3.1.0
- Tokenizers 0.20.3
More info can be found in our repository: [https://github.com/open-thoughts/open-thoughts](https://github.com/open-thoughts/open-thoughts).
# Citation
```
@misc{openthoughts,
author = {Team, OpenThoughts},
month = jan,
title = {{Open Thoughts}},
howpublished = {https://open-thoughts.ai},
year = {2025}
}
```
# Links
- πŸ“Š [OpenThoughts2 and OpenThinker2 Blog Post](https://www.open-thoughts.ai/blog/thinkagain)
- πŸ’» [Open Thoughts GitHub Repository](https://github.com/open-thoughts/open-thoughts)
- 🧠 [OpenThoughts2-1M dataset](https://huggingface.co/datasets/open-thoughts/OpenThoughts2-1M)
- πŸ€– [OpenThinker2-7B model](https://huggingface.co/open-thoughts/OpenThinker2-7B)
- πŸ€– [OpenThinker2-32B model](https://huggingface.co/open-thoughts/OpenThinker2-32B) - this model.