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README.md
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license: apache-2.0
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license: apache-2.0
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---
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# HRWKV7-Reka-Flash3.1-Preview
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<div align="center">
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<img src="./hxa079.png" style="border-radius: 15px; width: 60%; height: 60%; object-fit: cover; box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.5); border: 2px solid white;" alt="PRWKV" />
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</div>
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### Model Description
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HRWKV7-Reka-Flash3.1-Preview is an RNN hybrid architecture model that combines RWKV v7's linear attention mechanism with Group Query Attention (GQA) layers. Built upon the Reka-flash3.1 21B foundation, this model replaces most Transformer attention blocks with RWKV blocks while strategically maintaining some GQA layers to enhance performance on specific tasks.
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- **Developed by:** OpenMOSE
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- **Model type:** Hybrid Linear-Attention Language Model
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- **Language(s):** Multilingual (inherited from Reka-flash3.1 21B)
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- **License:** Apache-2.0
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- **Base Model:** Reka-flash3 21B(https://huggingface.co/RekaAI/reka-flash-3.1)
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- **Year:** 2025
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### Architecture Specifications
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- **Architecture:** RWKV v7 based "hxa079" Architecture + Group Query Attention Hybrid
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- **Total Layers:** 44 layers (L44D6114)
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- 38 RWKV layers (with Rope)
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- 6 GQA layers (No Rope, No Position Embeddings)
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- **Hidden Dimension:** 6144
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- **Training Context Window:** 4096 tokens
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- **Inference Context Window** 32768+
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- **Training Strategy** Following RADLADS method based knowledge distillation
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## Technical Innovation
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### RWKV "hxa079" Architecture
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The model implements several key improvements over original RWKV architectures:
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1. **Token Shift Removal**: In order to effectively inherit the teacher model weights, we removed the residual connection one token ago.
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2. **GroupNorm Removal**: Helps improve training stability issues
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3. **k_first Introduction**: Experimentally adopted the approach of residually connecting k layers in layer 0.
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### Hybrid Design Benefits
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- **Linear Attention Inference**: RWKV blocks enable O(1) memory complexity during inference, and the hybrid approach reduces the KVCache to 1/7 of full GQA.
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- **Enhanced Needle Tasks**: Strategic placement of GQA layers significantly improves performance on needle-in-haystack retrieval tasks, addressing a known limitation of pure linear attention models
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- **Implicit Position Encoding**: Interestingly, the model achieves better performance when RoPE (Rotary Position Embedding) is not applied to GQA layers, suggesting that RWKV blocks provide implicit positional encoding capabilities
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## Intended Use
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This is an **experimental research model** designed to explore hybrid architectures combining linear and quadratic attention mechanisms. It is intended for:
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- Research into efficient attention mechanisms
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- Benchmarking hybrid architecture performance
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- Exploring linear attention limitations and solutions
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- Academic and industrial R&D purposes
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## Limitations
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- **Experimental Status**: This model is in experimental stages and may exhibit unexpected behaviors
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- **Context Window**: Limited to 4096 tokens during training, though RWKV architecture theoretically supports longer sequences
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- **Performance Variability**: As a hybrid model, performance may vary significantly across different task types
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## Training Details
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- **Training Context Window:** 4096 tokens
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- **Training GPU** AMD MI300X x 1(takes 70hrs) AMD Developer Cloud.
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- **Training Strategy** 8bit MLP Quant, frozen emb,mlp,head, Deepspeed Stage1, Stage1 100M, Stage2 360M
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- **Base Model Initialization:** Weights initialized from Reka-flash3.1 21B
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- **Architecture Conversion:** Transformer attention blocks systematically replaced with RWKV blocks, except for 6 strategically placed GQA layers
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## Evaluation
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Performance evaluation is ongoing. The model shows promising results in:
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- Maintaining base model capabilities while achieving linear attention efficiency
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- Significantly improved needle-in-haystack task performance compared to pure RWKV architectures
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- Competitive performance on standard language modeling benchmarks
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## Run
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- RWKV-Infer now support hxa079
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```bash
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curl http://127.0.0.1:9000/loadmodel -X POST -H "Content-Type: application/json" -d '{"model_filename":"/home/client/Projects/llm/hxa079-reka-flash3-stage2-hybrid.pth","model_viewname":"RWKV HXA079 L38T6 Reka Flash3","model_strategy":"int8","adapter_filename":"","adapter_mode":"", "template":"rekaflash3", "endtoken":"\n <sep>","default_temperature":"0.2", "default_top_p":"0.3", "rope_theta":"8000000.0", "rms_norm_eps":"1e-5"}'
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```
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## Thank you for Big help :)
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- SmerkyG Inspired by RADLADS (https://arxiv.org/abs/2505.03005)
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- https://github.com/recursal/RADLADS-paper
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## Training Code
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- https://github.com/OpenMOSE/RWKVInside (still buggy)
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## Model Card Contact
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OpenMOSE - 2025
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---
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*Note: This is an experimental model. Performance characteristics and behaviors may differ from both pure RWKV and standard Transformer architectures. Users should thoroughly evaluate the model for their specific use cases.*
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