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Tom’s Guide
Tom’s Guide
Technology
Alex Hughes

OpenAI just launched ChatGPT-5.1 Pro to fight Gemini 3 — here's the biggest upgrades

OpenAI ChatGPT Gemini Google Tom Guide
Phone with Chatgpt logo.

It’s a competitive market. When one AI upgrade launches, another isn't far behind. With Google currently rolling out Gemini 3, OpenAI's rival, ChatGPT, is looking to steal some of that thunder with a new model upgrade that just launched.

Quietly pushed out on its release notes and with a quick post on X, this isn’t a hugely publicized change, but OpenAI probably knows exactly what it's doing.

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