GPT-5.5 Instant is OpenAIs latest lightweight AI model built for quick and efficient interactions inside ChatGPT.

OpenAI's GPT-5.5 in ChatGPT and Codex reduces the need for detailed prompts by planning, executing and verifying tasks independently, making AI workflows more accessible for everyday users ...

The new GPT-5.5 Instant model will replace GPT-3.5 Instant as the default model for ChatGPT ...

So when it comes to models that the general public can access, GPT-5.5 has retaken the crown for OpenAI, achieving the state-of-the-art across 14 benchmarks.

UPDATE: Aug. 7, 2025, 3:30 p.m. EDT GPT-5 is now available to use. We've updated this story with additional information on the rollout. The newest version of ChatGPT is here, and you can try it with ...

Although the entire AI boom was triggered by just one ChatGPT model, a lot has changed since 2022. New models have been released, old models have been replaced, updates roll out and roll back again ...

In early August, OpenAI unveiled the GPT-5 upgrade for ChatGPT with a bold plan — GPT-5 would replace all previous models and automatically decide when to reason and when to use specific tools, though ...

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Credit: Photographed by Joseph Maldonado / Mashable Composite by Rene Ramos On Thursday, The Verge reported that ChatGPT 5 from OpenAI will be arriving in August. We were already expecting a summer ...