AsOf

OpenAI · policyprompt_cache_retention

validasserted
Valid from
2026-05-29
Valid until
still holds
Published
2026-05-29
Recorded by AsOf
2026-10-31
Checked
2026-10-31 · its source page states the value and the date
Confidence
0.70

Sources

“May 29 Update v1/responses v1/chat/completions v1/batch For organizations without ZDR enabled, prompt_cache_retention now defaults to 24h instead of in_memory , enabling extended prompt caching by default.”— what the page says, read 2026-10-31