OpenAI · releasedOpen Responses

Valid from

2026-01-15

Valid until

still holds

Published

2026-01-15

Recorded by AsOf

2026-10-31

Checked

2026-10-31 · its source page states the value and the date

Confidence

0.70

Sources

“Jan 15 Announcement Announced Open Responses : an open-source spec for building multi-provider, interoperable LLM interfaces built on top of the original OpenAI Responses API.”— what the page says, read 2026-10-31

• OpenAI API changelog, January 15, 2026primary · developers.openai.com · 2026-01-15

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