GPT-5.5 Hits the API and Immediately Lands in Cursor, Perplexity, and Beyond

OpenAI's latest model topped CursorBench on arrival and rolled out across major developer tools within hours — a sign that the ecosystem now moves faster than the lab.

OpenAI made GPT-5.5 generally available through its API on Friday, as @OpenAIDevs announced, positioning the model as a step forward in "higher intelligence and stronger token efficiency" for complex work. The company did not linger on benchmarks in its own messaging, but the integrations spoke louder.

Unlock the full briefing

Get every story in today's briefing, the full archive, and the daily AI intelligence brief.

All stories today

Full archive

Daily brief

Cancel anytime. Payments powered by Stripe.