AsOf

OpenAI · releasedGPT-5.5 Pro

validasserted
Valid from
2026-04-24
Valid until
still holds
Published
2026-04-24
Recorded by AsOf
2026-10-31
Checked
2026-10-31 · its source page states the value and the date
Confidence
0.70

Sources

“Apr 24 Feature gpt-5.5 gpt-5.5-pro v1/responses v1/chat/completions v1/batch Released GPT-5.5 , a new frontier model for complex professional work, to the Chat Completions and Responses API, and released GPT-5.5 Pro for Responses API requests”— what the page says, read 2026-10-31