SMRTR ProgrammingApr 23, 2026Testing Catalog

OpenAI launches GPT-5.5 on ChatGPT and Codex

SMRTR summary

OpenAI launched GPT-5.5, targeting developers and knowledge workers who need AI that completes long, complex workflows autonomously. It scores 82.7% on Terminal-Bench 2.0 and 58.6% on SWE-Bench Pro, outpacing Claude Opus 4.7 and Gemini 3.1 Pro on key benchmarks. Priced at $5/$30 per 1M tokens, it's available now in ChatGPT and Codex, with API access coming soon.

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