Retrieve Message Batch results changedapi/beta/messages/batches/results
Nearest release: v2.1.282, published an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Recorded here
Lines+1added
Lines−1removed
From line
3,340
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits15to this page, all time
The whole hunk
from line 3340, old and new numbered
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from line 3340
33403340 Request-level diagnostics: why the prompt cache could not fully reuse
33413341 the prefix of the request named by `diagnostics.previous_message_id`.
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3343 - `cache_miss_reason: BetaCacheMissModelChanged or BetaCacheMissSystemChanged or BetaCacheMissToolsChanged or 3 more or null`
3343 - `cache_miss_reason: BetaCacheMissReason or null`
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33453345 Explains why the prompt cache could not fully reuse the prefix from the request identified by `diagnostics.previous_message_id`. `null` means diagnosis is still pending — the response was serialized before the background comparison completed.
33463346
No line in this hunk matches that.