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GPT 5 is the new default in ChatGPT replacing GPT 4o OpenAI o3 OpenAI o4 mini GPT 4 1 and GPT 4 5 for signed in users Just open ChatGPT and type your question GPT 5

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We ve made significant advances in reducing hallucinations improving instruction following and minimizing sycophancy and have leveled up GPT 5 s performance in three of

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GPT 5 2 in ChatGPT is our flagship GPT 5 generation model and the default for all logged in users GPT 5 2 Auto is a single auto switching system that brings together the best of our models into a

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GPT 5 is our previous model for coding reasoning and agentic tasks across domains We recommend using the latest GPT 5 1 Learn more in our latest model guide

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We ve trained a model called ChatGPT which interacts in a conversational way The dialogue format makes it possible for ChatGPT to answer followup questions admit its mistakes

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GPT 5 is OpenAI s most advanced model transforming enterprise AI automation and workforce productivity in the new era of intelligent work

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GPT 5

https://platform.openai.com › docs › models
GPT 5 Chat points to the GPT 5 snapshot previously used in ChatGPT For the latest Chat model please refer to our models page We recommend GPT 5 1 for most API usage but feel free to use

https://platform.openai.com › docs › guides › latest-model
Learn about how to use and migrate to GPT 5 2 and the GPT 5 model family the latest models in the OpenAI API