OpenAI releases GPT-5.5 with sharper reasoning coding and scientific problem-solving
OpenAI just rolled out GPT-5.5, its latest AI model that's even sharper at reasoning, coding, and tackling scientific problems.
Thanks to improved planning and self-correction skills, it can handle tricky multi-step tasks, and it's especially strong when it comes to writing and debugging code.
GPT-5.5 scores 82.7% on coding benchmark
GPT-5.5 beat out rivals on a major coding benchmark, scoring 82.7%, higher than Anthropic's Claude Opus 4.7 and Google's Gemini 3.1 Pro.
Even with these upgrades, it runs just as fast as the previous version but uses fewer tokens per task, so developers save money.
OpenAI has also put the model through tough safety checks, while it's labeled "High" risk, it stays below the "Critical" danger zone.
Right now you can try GPT-5.5 if you have Plus, Pro, Business, or Enterprise access on ChatGPT or Codex, with wider API access coming soon as safety gets double-checked.