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license: apache-2.0 |
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<div> </div> |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/641de0213239b631552713e4/ieHnwuczidNNoGRA_FN2y.png" width="500"/> |
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<img src="https://cdn-uploads.huggingface.co/production/uploads/641de0213239b631552713e4/UOsk9_zcbHpCCy6kmryYM.png" width="530"/> |
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# JetMoE: Reaching LLaMA2 Performance with 0.1M Dollars |
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## Key Messages |
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1. JetMoE-8B is **trained with less than $ 0.1 million**<sup>1</sup> **cost but outperforms LLaMA2-7B from Meta AI**, who has multi-billion-dollar training resources. LLM training can be **much cheaper than people previously thought**. |
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2. JetMoE-8B is **fully open-sourced and academia-friendly** because: |
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- It **only uses public datasets** for training, and the code is open-sourced. No proprietary resource is needed. |
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- It **can be finetuned with very limited compute budget** (e.g., consumer-grade GPU) that most labs can afford. |
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3. JetMoE-8B **only has 2.2B active parameters** during inference, which drastically lowers the computational cost. Compared to a model with similar inference computation, like Gemma-2B, JetMoE-8B achieves constantly better performance. |
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<sup>1</sup> We used a 96×H100 GPU cluster for 2 weeks, which cost ~$0.08 million. |
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Website: [https://research.myshell.ai/jetmoe](https://research.myshell.ai/jetmoe) |
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HuggingFace: [https://huggingface.co/jetmoe/jetmoe-8b](https://huggingface.co/jetmoe/jetmoe-8b) |
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Online Demo on Lepton AI: [https://www.lepton.ai/playground/chat?model=jetmoe-8b-chat](https://www.lepton.ai/playground/chat?model=jetmoe-8b-chat) |
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Technical Report: [https://arxiv.org/pdf/2404.07413.pdf](https://arxiv.org/pdf/2404.07413.pdf) |
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## Authors |
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The project is contributed by [Yikang Shen](https://scholar.google.com.hk/citations?user=qff5rRYAAAAJ), [Zhen Guo](https://zguo0525.github.io/), [Tianle Cai](https://www.tianle.website/#/) and [Zengyi Qin](https://www.qinzy.tech/). For technical inquiries, please contact [Yikang Shen](https://scholar.google.com.hk/citations?user=qff5rRYAAAAJ). For media and collaboration inquiries, please contact [Zengyi Qin](https://www.qinzy.tech/). |
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## Collaboration |
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**If you have great ideas but need more resources (GPU, data, funding, etc.)**, welcome to contact **MyShell.ai** via [Zengyi Qin](https://www.qinzy.tech/). **MyShell.ai** is open to collaborations and are actively supporting high-quality open-source projects. |
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## Benchmarks |
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We use the same evaluation methodology as in the Open LLM leaderboard. For MBPP code benchmark, we use the same evaluation methodology as in the LLaMA2 and Deepseek-MoE paper. The results are shown below: |
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|Model|Activate Params|Training Tokens|Open LLM Leaderboard Avg|ARC|Hellaswag|MMLU|TruthfulQA|WinoGrande|GSM8k|MBPP|HumanEval| |
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|Shot||||25|10|5|0|5|5|3|0| |
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|Metric||||acc_norm|acc_norm|acc|mc2|acc|acc|Pass@1|Pass@1| |
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|LLaMA2-7B|7B|2T|51.0|53.1|78.6|46.9|38.8|74|14.5|20.8|12.8| |
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|LLaMA-13B|13B|1T|51.4|**56.2**|**80.9**|47.7|39.5|**76.2**|7.6|22.0|15.8| |
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|DeepseekMoE-16B|2.8B|2T|51.1|53.2|79.8|46.3|36.1|73.7|17.3|34.0|**25.0**| |
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|Gemma-2B|2B|2T|46.4|48.4|71.8|41.8|33.1|66.3|16.9|28.0|24.4| |
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|JetMoE-8B|2.2B|1.25T|**53.0**|48.7|80.5|**49.2**|**41.7**|70.2|**27.8**|**34.2**|14.6| |
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| Model | MT-Bench Score | |
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|---------------------|-----------| |
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| GPT-4 | 9.014 | |
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| GPT-3.5-turbo | 7.995 | |
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| Claude-v1 | 7.923 | |
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| **JetMoE-8B-chat** | **6.681** | |
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| Llama-2-13b-chat | 6.650 | |
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| Vicuna-13b-v1.3 | 6.413 | |
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| Wizardlm-13b | 6.353 | |
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| Llama-2-7b-chat | 6.269 | |
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To our surprise, despite the lower training cost and computation, JetMoE-8B performs even better than LLaMA2-7B, LLaMA-13B, and DeepseekMoE-16B. Compared to a model with similar training and inference computation, like Gemma-2B, JetMoE-8B achieves better performance. |
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## Model Usage |
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To load the models, you need install [this package](https://github.com/myshell-ai/JetMoE): |
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``` |
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pip install -e . |
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``` |
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Then you can load the model with the following code: |
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```python |
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from transformers import AutoTokenizer, AutoModelForCausalLM, AutoConfig, AutoModelForSequenceClassification |
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from jetmoe import JetMoEForCausalLM, JetMoEConfig, JetMoEForSequenceClassification |
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AutoConfig.register("jetmoe", JetMoEConfig) |
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AutoModelForCausalLM.register(JetMoEConfig, JetMoEForCausalLM) |
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AutoModelForSequenceClassification.register(JetMoEConfig, JetMoEForSequenceClassification) |
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tokenizer = AutoTokenizer.from_pretrained('jetmoe/jetmoe-8b') |
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model = AutoModelForCausalLM.from_pretrained('jetmoe/jetmoe-8b') |
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``` |
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## Model Details |
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JetMoE-8B has 24 blocks. |
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Each block has two MoE layers: Mixture of Attention heads (MoA) and Mixture of MLP Experts (MoE). |
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Each MoA and MoE layer has 8 expert, and 2 experts are activated for each input token. |
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It has 8 billion parameters in total and 2.2B active parameters. |
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JetMoE-8B is trained on 1.25T tokens from publicly available datasets, with a learning rate of 5.0 x 10<sup>-4</sup> and a global batch-size of 4M tokens. |
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<figure> |
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<center> |
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<img src="images/jetmoe_architecture.png" width="40%"> |
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<figcaption>JetMoE Architecture</figcaption> |
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</center> |
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</figure> |
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## Training Details |
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Our training recipe follows the [MiniCPM](https://shengdinghu.notion.site/MiniCPM-Unveiling-the-Potential-of-End-side-Large-Language-Models-d4d3a8c426424654a4e80e42a711cb20?pvs=4)'s two-phases training method. Phase 1 uses a constant learning rate with linear warmup and is trained on 1 trillion tokens from large-scale open-source pretraining datasets, including RefinedWeb, Pile, Github data, etc. Phase 2 uses exponential learning rate decay and is trained on 250 billion tokens from phase 1 datasets and extra high-quality open-source datasets. |
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<figure> |
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<center> |
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<img src="images/Phase1_data.png" width="60%"> |
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<img src="images/Phase2_data.png" width="60%"> |
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</center> |
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</figure> |
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## Technical Report |
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For more details, please refer to the [JetMoE Technical Report](https://arxiv.org/abs/2404.07413). |
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## JetMoE Model Index |
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|Model|Index| |
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|JetMoE-8B-Base| [Link](https://huggingface.co/jetmoe/jetmoe-8B) | |
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|JetMoE-8B-SFT| [Link](https://huggingface.co/jetmoe/jetmoe-8B-sft) | |
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|JetMoE-8B-Chat| [Link](https://huggingface.co/jetmoe/jetmoe-8B-chat) | |
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## Acknowledgement |
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We express our gratitude to [Shengding Hu](https://shengdinghu.github.io/) for his valuable advice on the Phase 2 data mixture. We also express our gratitude to [Exabits](https://www.exabits.ai/) for their assistance in setting up the GPU clusters, and to [Lepton AI](https://www.lepton.ai/) for their support in setting up the chat demo. |
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