AsOf

OpenAI · featurecustom tool call type

validasserted
Valid from
2025-08-07
Valid until
still holds
Published
2025-08-07
Recorded by AsOf
2026-11-01
Checked
2026-11-01 · its source page states the value and the date
Confidence
0.70

Sources

“Introduced custom tool call type, which allows for freeform inputs to and outputs from the model when tool calling.”— what the page says, read 2026-11-01