GPT-5.5

We’re bringing new capabilities to GPT-Rosalind, a model series purpose-built for life sciences research at enterprise scale. It brings GPT-5.5’s agentic coding and tool use together with stronger i…

@OpenAI·Jun 3, 2026↗

Announcing the Artificial Analysis Coding Agent Index! Our new coding agent benchmarks measure how combinations of agent harnesses and models perform on 3 leading benchmarks, token usage, cost and mo…

@ArtificialAnlys·May 11, 2026↗

Today is 5/5! GPT-5.5 shipped 12 days ago, and the community love has been amazing. ✨ Revisiting a few first impressions we hadn’t posted here before seeing more of you tonight at 5:55. First: @cla…

@romainhuet·May 6, 2026↗

https://t.co/xXNjG1Misq

@dkundel·Apr 29, 2026↗

https://t.co/pmkDoTe9Ug **NEW: GPT-5.5 Prompting Guide** "GPT-5.5 works best when prompts define the outcome and leave room for the model to choose an efficient solution path. Compared with earlier…

@TheRealAdamG·Apr 29, 2026↗

GPT-5.5 + GPT Image 2 in Codex is insane 🤯 The watch components generation + alignment was one shot. https://t.co/x6Jmt05xN6

@kagigz·Apr 27, 2026↗

Introducing GPT-5.5 A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks …

@OpenAI·Apr 23, 2026↗

@OpenAI We've been testing GPT-5.5 at Every for the last 3 weeks on everything from coding, to writing, to knowledge work. Here's our day 0 vibe check: https://t.co/kS6MNayRp4

@every·Apr 23, 2026↗