GPT-5.6 and Claude feel slow — where are the diffusion coding models?

viksit · x · 2026-09-03

The author complains that frontier coding models are painfully slow to generate: GPT-5.6 Sol and Claude Fable both feel sluggish, and asks where the diffusion-based coding models are — a paradigm that could sidestep the speed limits of autoregressive token-by-token generation.

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