AsOf

GPT-4 · model releaseGPT-4.5

validasserted
Valid from
2025-02-27
Valid until
still holds
Published
2025-02-27
Recorded by AsOf
2026-11-03
Checked
2026-11-04 · its source page states the value and the date
Confidence
0.50

Sources

“Feb 27 Feature GPT-4.5 v1/chat/completions v1/assistants v1/batch Released a research preview of GPT-4.5 —our largest and most capable chat model yet.”— what the page says, read 2026-11-04