OpenAI Debuts GPT-5.5 Claiming Agentic Coding and Research Gains

MacRumors
By Tim HardwickApr 24, 2026, 8:32 am237 pts
OpenAI has announced the release of GPT-5.5, the latest upgrade to the company's family of models powering its ChatGPT and Codex apps. OpenAI describes GPT-5.5 as better at multi-step work, claiming it can plan, use tools, and verify its own output with less hand-holding. The model is said to offer gains in…

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