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license: apache-2.0
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---
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license: apache-2.0
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language:
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- en
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tags:
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- moe
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- sparse-mixture-of-experts
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- jax
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- flax
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- pytorch
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- text-generation
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- openwebtext
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---
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# Q-MoE-400
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**Q-MoE-400** is a 400 million parameter Sparse Mixture of Experts (MoE) model trained on the OpenWebText dataset using JAX/Flax on 8 TPU v3 chips.
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This model serves as a research artifact for studying the compute efficiency of sparse architectures compared to dense transformers. It demonstrates how routing mechanisms can enable high-capacity models with lower inference costs.
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## 🎯 Project Goal
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The primary goal of the Q-MoE project is to investigate:
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1. **Compute Efficiency:** Analyzing how sparse MoE models scale compared to dense counterparts with similar active parameter counts.
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2. **Routing Dynamics:** Studying load balancing and expert specialization during pre-training.
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3. **Interoperability:** Providing a bridge between research frameworks (JAX/Flax) and accessible inference (PyTorch).
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## 📊 Training Metrics
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The model was evaluated at step **79,100**. The final validation metrics indicate stable routing and convergence on the OpenWebText validation split.
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| Metric | Value | Description |
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| :--- | :--- | :--- |
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| **Step** | 79,100 | Total training steps |
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| **Train Loss** | 3.2190 | Total training loss (CE + Aux) |
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| **Train CE** | 3.0987 | Cross-Entropy loss on training data |
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| **Val Loss** | 3.2028 | Total validation loss |
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| **Val CE** | 3.0825 | Cross-Entropy loss on validation data |
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| **Router Loss** | 0.1202 | Auxiliary load-balancing loss |
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| **Dropped Tokens** | 0.0 | No tokens dropped (perfect capacity utilization) |
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### Training Progress
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*(Upload your validation loss chart here to visualize the learning curve)*
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## 🛠️ Repository Contents
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This repository contains checkpoints compatible with both major frameworks:
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- **JAX/Flax:** The original training checkpoints (Orbit/Orbax format).
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- **PyTorch:** Converted weights for easier integration with the Hugging Face ecosystem (Safetensors).
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## 💻 Inference & Usage
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For inference code, architectural details, and conversion scripts, please visit the official GitHub repository:
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👉 **[https://github.com/sidharth72/Q-MoE-400]**
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To run the model, you will likely need the custom modeling code provided in the GitHub repo, as this uses a specialized sparse MoE architecture.
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## ⚙️ Training Details
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- **Architecture:** Sparse Mixture of Experts (Transformer Decoder)
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- **Parameters:** ~400M (Total), significantly fewer active parameters per token.
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- **Dataset:** OpenWebText
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- **Hardware:** 8 x TPU v3
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- **Framework:** JAX / Flax
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## 📜 Citation
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If you find this model or the associated research useful, please cite:
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```bibtex
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@misc{q-moe-400,
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author = {Your Name/Organization},
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title = {Q-MoE-400: A Sparse Mixture of Experts Model},
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year = {2025},
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publisher = {Hugging Face},
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journal = {Hugging Face Repository},
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howpublished = {\url{[https://huggingface.co/your-username/Q-MoE-400](https://huggingface.co/your-username/Q-MoE-400)}}
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}
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