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GPT-5.5 System Card

GPT‑5.5 is a new model designed for complex, real-world work, including writing code, researching online, analyzing information, creating documents and spreadsheets, and moving across tools to get things done. Relative to earlier models, GPT‑5.5 understands...

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OpenAI News

Introducing GPT-5.5

Introducing GPT-5.5, our smartest model yet—faster, more capable, and built for complex tasks like coding, research, and data analysis across tools.

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OpenAI News

GPT-5.5 Bio Bug Bounty

Explore the GPT-5.5 Bio Bug Bounty: a red-teaming challenge to find universal jailbreaks for bio safety risks, with rewards up to $25,000.

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Mitchell Bryson AI Articles

The latecomers just took the lead - Mitchell Bryson

Bezos builds a $38 billion AI lab in five months by poaching from everyone else. A young Beijing lab ships an open-weight model that beats Claude and GPT on coding benchmarks. Non-developers are flooding app stores with software they couldn't have built a...

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