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First request changedmanage-claude/usage-cost-api

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From line 104 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits13to this page, all time

#### Fast mode #### Fast mode (research preview)

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104104 
105105* **Time buckets:** Aggregate usage data in fixed intervals (`1m`, `1h`, or `1d`)
106106* **Token tracking:** Measure uncached input, cached input, cache creation, and output tokens
107* **Filtering & grouping:** Filter by API key, workspace, model, service tier, context window, [data residency](https://platform.claude.com/docs/en/manage-claude/data-residency), or speed (beta), and group results by these dimensions
107* **Filtering & grouping:** Filter by API key, workspace, model, service tier, context window, [data residency](https://platform.claude.com/docs/en/manage-claude/data-residency), or speed, and group results by these dimensions
108108* **Server tool usage:** Track usage of server-side tools such as web search
109109 
110110For complete parameter details and response schemas, see the [Usage API reference](https://platform.claude.com/docs/en/api/beta/organization/usage_report/retrieve_messages).
from line 190
190190 Models released before February 2026 (prior to Claude Opus 4.6 and Claude Sonnet 4.6) don't support the `inference_geo` request parameter, so their usage reports return `"not_available"` for this dimension. You can use `not_available` as a filter value in `inference_geos[]` to target those models.
191191</Note>
192192 
193#### Fast mode (research preview)
193#### Fast mode
194194 
195195Track [fast mode](https://platform.claude.com/docs/en/build-with-claude/fast-mode) usage by grouping and filtering with the `speed` dimension. This is useful for monitoring standard versus fast mode usage.
196196 
from line 202
202202group_by[]=model&\
203203bucket_width=1d" \
204204 -H "anthropic-version: 2023-06-01" \
205 -H "anthropic-beta: fast-mode-2026-02-01" \
206205 -H "x-api-key: $ANTHROPIC_ADMIN_KEY"
207206```
208207 
from line 215
216215group_by[]=model&\
217216bucket_width=1d" \
218217 -H "anthropic-version: 2023-06-01" \
219 -H "anthropic-beta: fast-mode-2026-02-01" \
220218 -H "x-api-key: $ANTHROPIC_ADMIN_KEY"
221219```
222 
223<Note>
224 Both the `speeds[]` filter and the `speed` group\_by value require the `fast-mode-2026-02-01` beta header.
225</Note>
226220 
227221### Time granularity limits
228222 
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