Multi-Head vs Grouped Query Attention. Claude AI, Llama-3, Gemma are choosing speed over quality?
Multi-Head vs Grouped Query Attention. Are Claude, Llama-3, Gemma are choosing speed over quality?
frontier model providers such as anthropic claude 3.5 sonnet, and Google Gemini / Gemma 2B and Meta Llama-3 are trending towards using grouped query attention vs traditional multi-headed attention in transformer models as their attention mechansim. Interesting OpenAI with GPT-4o doesn't seem to be making this trade off.
Although this choice speeds up AI inference, it does impact content quality for output such such as summarization. in this video chris shows that you get better coherent output from models such as llama-2 or claude 3-opus over new models such as llama-3 or gemini or gemma. in the end, in certain scenarios such as summarization or generative content, gpt-4o still beats sonnet.
repo
https://github.com/chrishayuk/mha_gqa...
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