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A new version of ChatGPT has arrived that OpenAI CEO Sam Altman promises will have Ph.D-level smarts.

OpenAI on Thursday announced the release of GPT‑5, which it calls its “smartest, fastest and most useful model yet.”

The artificial intelligence company that brought the world ChatGPT says its latest version of the AI-powered chatbot will be more accurate, have fewer hallucinations and offer more articulate writing capabilities for composing emails and reports, for example. ChatGPT-5 will also excel at coding and answering health-related questions.

A basic version of the new model is available for free, with paid options for higher usage also available.

On a call with reporters Wednesday for a preview of the new chatbot, Altman likened ChatGPT-5 to

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