[r/LocalLLaMA] Running Qwen3.5 397B on M3 Macbook Pro with 48GB RAM at 5 t/s

Summary

A user successfully ran the Qwen3.5 397B language model on an M3 MacBook Pro with 48GB RAM, achieving 5.7 tokens/second. This was accomplished using a custom harness inspired by Karpathy's autoresearch and Apple's "LLM in a Flash" paper. The developer believes even faster speeds, potentially up to 18 t/s, are achievable on this hardware, especially with dense models.

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