OpenAI Says GPT-5.6 Achieves Self-Optimization, Reducing Serving Costs by 20%

dhadfieldmenell · x · 2026-07-31

OpenAI stated that after deployment, GPT-5.6 Sol advanced efficiency by making itself more efficient to run. The results include a 20% reduction in serving costs from production GPU kernel improvements and over 15% better token-generation efficiency from improved speculative decoding. In quoted discussions, some expressed concerns that such rapid signs of Recursive Self-Improvement (RSI) might be 'crying wolf', though they admitted RSI is inevitable eventually.

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