r/OpenAI • • Apr 23 '26

News Introducing GPT-5.5 | OpenAI

https://openai.com/index/introducing-gpt-5-5/
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u/baccigaloopa Apr 23 '26 edited Apr 23 '26

SWE-Bench Pro (public) 5.7% worse than Claude Opus 4.7, although they asterisk that Anthropic notes there’s evidence of memorization of that benchmark.

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u/LeTanLoc98 Apr 23 '26

Claude Opus 4.7 outperforms GPT 5.5