Prompt caching cachecontrol ephemeral typically means:

Question

Accepted Answer

Cached prefix is short-lived per platform rules, aimed at repeated requests in a time window — Ephemeral cache = short-lived reuse window for hot prefixes, not forever storage.

Answer

The cache lives forever without eviction

Answer

The content is written to public Twitter

Answer

Caching is disabled permanently for the org

Prompt caching cache_control ephemeral typically means:

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