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OpenAI · model release

GPT-4 Turbo preview released at OpenAI DevDay

OpenAI previews GPT-4 Turbo, a cheaper GPT-4 that can read far longer documents.

In detail

At its DevDay event OpenAI announced GPT-4 Turbo with a 128K context window and lower prices than GPT-4, available to all paying developers as a preview in the API, along with the Assistants API.

Sources

  1. New models and developer products announced at DevDay · OpenAI · Primary source

Last checked 11 November 2026.

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