OpenAI launches GPT-5.4 across ChatGPT, API, and Codex with stronger reasoning, coding, and computer use capabilities.

OpenAI's new GPT-5.4 clobbers humans on pro-level work in tests - by 83% ...

OpenAI teases “5.4” as reports point to a 1M+ token context window and “extreme reasoning,” amid scrutiny over its Pentagon deal.

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