GPT-5.5 Ships with Codex Integration, and Sam Altman Is Losing Sleep Over It

OpenAI's GPT-5.5 launch focuses heavily on agentic coding, with early users reporting dramatic workflow acceleration — and Altman himself signaling that even he is surprised by the capability jump.

OpenAI launched GPT-5.5 over the weekend, and the initial reception among developers has been unusually enthusiastic — particularly around its integration with Codex for extended coding tasks. @blitcore_ noted that OpenAI "went hard on the agentic side — better at long tasks, coding, research," positioning the release as a meaningful step forward for AI-assisted software development rather than just another benchmark number.

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