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---
library_name: transformers
license: mit
---
# Model Card for Model ID
This is a saved checkpoint from fine-tuning a Qwen3/Qwen3-1.7B-Base model using the MaxRL objective, [**"Maximum Likelihood Reinforcement Learning"**](https://arxiv.org/abs/2602.02710).
In our work, we introduce MaxRL, a framework for optimizing maximum likelihood in RL settings.
## Model Details
### Model Description
<!-- Provide a longer summary of what this model is. -->
This is the model card of a Qwen3/Qwen3-1.7B-Base model fine-tuned using MaxRL.
- **Finetuned from model:** [Qwen3/Qwen3-1.7B-Base](https://huggingface.co/Qwen/Qwen3-1.7B-Base)
### Model Sources
<!-- Provide the basic links for the model. -->
- **Repository:** [Official Code Release for the paper "Maximum Likelihood Reinforcement Learning"](https://github.com/tajwarfahim/maxrl)
- **Paper:** [Maximum Likelihood Reinforcement Learning](https://arxiv.org/abs/2602.02710)
- **Project Website:** [Project Website](https://zanette-labs.github.io/MaxRL/)
## Training Details
### Training Data
<!-- This should link to a Dataset Card, perhaps with a short stub of information on what the training data is all about as well as documentation related to data pre-processing or additional filtering. -->
We train on the [POLARIS-53K](https://huggingface.co/datasets/POLARIS-Project/Polaris-Dataset-53K) dataset to produce this checkpoint.
### Training Procedure
Please use the [given script](https://github.com/tajwarfahim/maxrl/blob/main/qwen3_experiments/run_qwen3_training.sh) or in general the published [codebase](https://github.com/tajwarfahim/maxrl) to reproduce training this checkpoint. Hyperparameters and other details are provided in the training script.
Due to computational constraints, we have trained for 1000 steps, and released the final checkpoint.
#### Hardware
This model has been finetuned using 32 NVIDIA H200 GPUs (4 nodes of 8xH200 GPUs).
## Citation
<!-- If there is a paper or blog post introducing the model, the APA and Bibtex information for that should go in this section. -->
**BibTeX:**
```
@misc{tajwar2026maximumlikelihoodreinforcementlearning,
title={Maximum Likelihood Reinforcement Learning},
author={Fahim Tajwar and Guanning Zeng and Yueer Zhou and Yuda Song and Daman Arora and Yiding Jiang and Jeff Schneider and Ruslan Salakhutdinov and Haiwen Feng and Andrea Zanette},
year={2026},
eprint={2602.02710},
archivePrefix={arXiv},
primaryClass={cs.LG},
url={https://arxiv.org/abs/2602.02710},
}
```
## Model Card Contact
[Fahim Tajwar](mailto:tajwarfahim932@gmail.com)