OpenAI · featureWebSocket mode

Valid from

2026-02-23

Valid until

still holds

Published

2026-02-23

Recorded by AsOf

2026-10-31

Checked

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

Confidence

0.70

Sources

“Feb 23 Feature v1/responses Launched WebSocket mode for the Responses API. Learn more here .”— what the page says, read 2026-10-31

• OpenAI API changelog, February 23, 2026primary · developers.openai.com · 2026-02-23

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