[ColossalChat](https://github.com/hpcaitech/ColossalAI/tree/main/applications/ColossalChat) is a project to implement LLM with RLHF, powered by the [Colossal-AI](https://github.com/hpcaitech/ColossalAI).
Coati stands for `ColossalAI Talking Intelligence`. It is the name for the module implemented in this project and is also the name of the large language model developed by the ColossalChat project.
The Coati package provides a unified large language model framework that has implemented the following functions
- Supports comprehensive large-model training acceleration capabilities for ColossalAI, without requiring knowledge of complex distributed training algorithms
- [2023/03] [ColossalChat: An Open-Source Solution for Cloning ChatGPT With a Complete RLHF Pipeline](https://medium.com/@yangyou_berkeley/colossalchat-an-open-source-solution-for-cloning-chatgpt-with-a-complete-rlhf-pipeline-5edf08fb538b)
- [2023/02] [Open Source Solution Replicates ChatGPT Training Process! Ready to go with only 1.6GB GPU Memory](https://www.hpc-ai.tech/blog/colossal-ai-chatgpt)
[ColossalChat](https://github.com/hpcaitech/ColossalAI/tree/main/applications/Chat): An open-source solution for cloning [ChatGPT](https://openai.com/blog/chatgpt/) with a complete RLHF pipeline.
> DeepSpeedChat performance comes from its blog on 2023 April 12, ColossalChat performance can be reproduced on an AWS p4d.24xlarge node with 8 A100-40G GPUs with the following command: `torchrun --standalone --nproc_per_node 8 benchmark_opt_lora_dummy.py --num_collect_steps 1 --use_kernels --strategy colossalai_zero2 --experience_batch_size 64 --train_batch_size 32`
Stage1 is supervised instructs fine-tuning (SFT). This step is a crucial part of the RLHF training process, as it involves training a machine learning model using human-provided instructions to learn the initial behavior for the task at hand. More details can be found in [example guideline](./examples/README.md).
Stage2 trains a reward model, which obtains corresponding scores by manually ranking different outputs for the same prompt and supervises the training of the reward model.
For those seeking an alternative to Reinforcement Learning from Human Feedback (RLHF), Direct Preference Optimization (DPO) presents a compelling option. DPO, as detailed in this [paper](https://arxiv.org/abs/2305.18290), DPO offers an low-cost way to perform RLHF and usually request less computation resources compares to PPO. Read this [README](./examples/README.md) for more information.
Simple Preference Optimization (SimPO) from this [paper](https://arxiv.org/pdf/2405.14734) is similar to DPO but it abandons the use of the reference model, which makes the training more efficient. It also adds a reward shaping term called target reward margin to enhance training stability. It also use length normalization to better align with the inference process. Read this [README](./examples/README.md) for more information.
Odds Ratio Preference Optimization (ORPO) from this [paper](https://arxiv.org/pdf/2403.07691) is a reference model free alignment method that use a mixture of SFT loss and a reinforcement leanring loss calculated based on odds-ratio-based implicit reward to makes the training more efficient and stable. Read this [README](./examples/README.md) for more information.
We support the method introduced in the paper [KTO:Model Alignment as Prospect Theoretic Optimization](https://arxiv.org/pdf/2402.01306) (KTO). Which is a aligment method that directly maximize "human utility" of generation results. Read this [README](./examples/README.md) for more information.
### Alternative Option For RLHF: Group Relative Policy Optimization (GRPO)
We support the main algorithm used to train DeepSeek R1 model, a variant of Proximal Policy Optimization (PPO), that enhances mathematical reasoning abilities while concurrently optimizing the memory usage of PPO. Read this [README](./examples/README.md) for more information.
### SFT for DeepSeek V3
We support fine-tuning DeepSeek V3/R1 model with LoRA. Read this [README](./examples/README.md) for more information.
### Inference Quantization and Serving - After Training
Referring to the successful attempts of [BLOOM](https://bigscience.huggingface.co/) and [Stable Diffusion](https://en.wikipedia.org/wiki/Stable_Diffusion), any and all developers and partners with computing powers, datasets, models are welcome to join and build the Colossal-AI community, making efforts towards the era of big AI models from the starting point of replicating ChatGPT!
You may contact us or participate in the following ways:
1. [Leaving a Star ⭐](https://github.com/hpcaitech/ColossalAI/stargazers) to show your like and support. Thanks!
2. Posting an [issue](https://github.com/hpcaitech/ColossalAI/issues/new/choose), or submitting a PR on GitHub follow the guideline in [Contributing](https://github.com/hpcaitech/ColossalAI/blob/main/CONTRIBUTING.md).
- An open-source low-cost solution for cloning [ChatGPT](https://openai.com/blog/chatgpt/) with a complete RLHF pipeline. [[demo]](https://chat.colossalai.org)
- [ver217](https://github.com/ver217) Leading the project while contributing to the main framework (System Lead).
- [Tong Li](https://github.com/TongLi3701) Leading the project while contributing to the main framework (Algorithm Lead).
- [Anbang Ye](https://github.com/YeAnbang) Contributing to the refactored PPO version with updated acceleration framework. Add support for DPO, SimPO, ORPO.
title = {LoRA: Low-Rank Adaptation of Large Language Models},
author = {Edward J. Hu and Yelong Shen and Phillip Wallis and Zeyuan Allen-Zhu and Yuanzhi Li and Shean Wang and Weizhu Chen},
journal = {ArXiv},
year = {2021},
volume = {abs/2106.09685}
}
@article{ouyang2022training,
title={Training language models to follow instructions with human feedback},
author={Ouyang, Long and Wu, Jeff and Jiang, Xu and Almeida, Diogo and Wainwright, Carroll L and Mishkin, Pamela and Zhang, Chong and Agarwal, Sandhini and Slama, Katarina and Ray, Alex and others},
journal={arXiv preprint arXiv:2203.02155},
year={2022}
}
@article{touvron2023llama,
title={LLaMA: Open and Efficient Foundation Language Models},
author={Touvron, Hugo and Lavril, Thibaut and Izacard, Gautier and Martinet, Xavier and Lachaux, Marie-Anne and Lacroix, Timoth{\'e}e and Rozi{\`e}re, Baptiste and Goyal, Naman and Hambro, Eric and Azhar, Faisal and Rodriguez, Aurelien and Joulin, Armand and Grave, Edouard and Lample, Guillaume},
journal={arXiv preprint arXiv:2302.13971},
year={2023}
}
@misc{alpaca,
author = {Rohan Taori and Ishaan Gulrajani and Tianyi Zhang and Yann Dubois and Xuechen Li and Carlos Guestrin and Percy Liang and Tatsunori B. Hashimoto },
title = {Stanford Alpaca: An Instruction-following LLaMA model},
title={DeepSeekMath: Pushing the Limits of Mathematical Reasoning in Open Language Models},
author={Zhihong Shao and Peiyi Wang and Qihao Zhu and Runxin Xu and Junxiao Song and Xiao Bi and Haowei Zhang and Mingchuan Zhang and Y. K. Li and Y. Wu and Daya Guo},
year={2024},
eprint={2402.03300},
archivePrefix={arXiv},
primaryClass={cs.CL},
url={https://arxiv.org/abs/2402.03300},
}
@misc{logic-rl,
author = {Tian Xie and Qingnan Ren and Yuqian Hong and Zitian Gao and Haoming Luo},
