GPT-5.1 Instant and Thinking roll out to all users, with warmer tone, adaptive reasoning, and faster simple tasks. API release includes no-reasoning mode, 24-hour prompt caching, and new apply_patch and shell tools.
Added to The Deploy Log , updated .
26 rows from OpenAI in The Deploy Log are dated on or before this one, this one included.
It reached The Deploy Log 306 days after OpenAI published it on .
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