Request 2 caches its request content (not the response) changedbuild-with-claude/prompt-caching
Nearest release: v2.1.310, published 11 hours after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
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821
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14 Aug 2026
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822822The response includes detailed cache information like the following:
823823
824```text Output wrap
824```json Output
825825{
826826 "usage": {
827827 "input_tokens": 2048,
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10911091The API returns an empty `content` array:
10921092
1093```text Output wrap
1093```json Output
10941094{
10951095 "id": "msg_01XFDUDYJgAACzvnptvVoYEL",
10961096 "type": "message",
No line in this hunk matches that.