OpenAI releases GPT-5.5 and GPT-5.5 Pro in the API

Posted 18 hours ago by arabicalories
243 points

https://developers.openai.com/api/docs/changelog

GPT-5.5 - https://news.ycombinator.com/item?id=47879092 - April 2026 (1010 comments)

29 comments

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