OpenAI unveiled GPT-5.5, calling GPT-5.5 its smartest and most
intuitive model yet and claimed that it is the next step toward letting
AI actually do the work, not just talk about it.

"You can hand it a vague project and trust it to plan, use tools, check
its own work, navigate ambiguity and keep going until it's done," the
press release said.

Unlike earlier versions that needed careful step-by-step instructions,
GPT-5.5 can take on messy, multi-part tasks from start to finish,
according to the press release by the company.

The model excels at writing and debugging code, researching online, analyzing data, building documents and spreadsheets, and even operating software across different apps.

OpenAI's GPT-5.5 is its smartest, most intuitive #AI model, designed to
perform complex, multi-part tasks and "do the work" rather than just
talk about it.

GPT-5.5 achieves 82.7% accuracy on Terminal-Bench 2.0 and scores 58.6% on SWE-Bench Pro, solving more GitHub issues end-to-end than previous models.

GPT-5.5 acts as a capable assistant, excelling at finding information, analyzing data, and generating high-quality documents, spreadsheets, and presentations for various teams.

GPT-5.5 features stronger safeguards, including tighter controls for
high-risk cybersecurity requests and expanded testing with external
redteamers, classified as "High" risk.

GPT-5.5 is rolling out to Plus, Pro, Business, and Enterprise users in
#ChatGPT and Codex. GPT-5.5 Pro is available for Pro, Business, and
Enterprise tiers.

GPT-5.5 uses fewer tokens, delivering frontier-level intelligence at
roughly half the cost of competing models, and boosts token generation
speeds by over 20%.