OpenAI · releasedResponses API

Valid from

2025-03-11

Valid until

still holds

Published

2025-03-11

Recorded by AsOf

2026-11-03

Checked

2026-11-04 · its source page states the value and the date

Confidence

0.70

Sources

“Mar 11 Feature gpt-4o-search-preview gpt-4o-mini-search-preview computer-use-preview v1/chat/completions v1/assistants v1/responses Released several new models and tools and a new API for agentic workflows: Released the Responses API , a new API for creating and using agents and tools.”— what the page says, read 2026-11-04

• OpenAI API changelog, March 11, 2025primary · developers.openai.com · 2025-03-11
• From model to agent: Equipping the Responses API with a computer environmentprimary · openai.com · 2026-03-11

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