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OpenAI launches GPT-5
A unified flagship system routes between faster answers and deeper reasoning.
Model labOpenAI
OpenAITopics
OCCURRED7 Aug 2025
PUBLIC ACCOUNT7 Aug 2025
EVIDENCEFirst-party account
About these dates
Date of the original developer release announcement.
OpenAI began rolling out GPT-5 in ChatGPT as a system combining faster responses, a deeper reasoning model and a router. Developers also received GPT-5 models through the API; the API offering was not identical to ChatGPT’s routed system. OpenAI ↗OpenAI ↗
Sources & attribution
- Organizational disclosure 7 Aug 2025gpt 5 release announcement ↗
OpenAI. Original developer announcement.
- Organizational disclosure 7 Aug 2025Introducing GPT-5 for developers ↗
OpenAI. Original developer announcement.