Get the Workload Cost Index by provider
The Workload Cost Index: daily settled cents per request, a mix-purged like-for-like index, and tokens per request for each closed-lab provider (anthropic, openai, google). With no startDate or endDate this returns the entire settled history for every provider and model family, so pass a range unless you actually want the full series - the unfiltered payload grows with every settlement day. Use lab to filter to a single provider. Requires an API key - unlike the GPU and token indices, the Workload Cost Index has no free tier.
Overview
The Workload Cost Index: daily settled cents per request, a mix-purged like-for-like index, and tokens per request for each closed-lab provider (anthropic, openai, google). With no startDate or endDate this returns the entire settled history for every provider and model family, so pass a range unless you actually want the full series - the unfiltered payload grows with every settlement day. Use lab to filter to a single provider. Requires an API key - unlike the GPU and token indices, the Workload Cost Index has no free tier.Authorizations
API key passed as a Bearer token. Create one in the dashboard.
Query Parameters
Inclusive start of a settlement-date range in YYYY-MM-DD. Use with endDate to pull a history window.
"2026-06-11"
Inclusive end of a settlement-date range in YYYY-MM-DD. Use with startDate to pull a history window.
"2026-07-13"
Filter to a single provider.
anthropic, openai, google Response
Daily Workload Cost Index rows for the requested provider(s) and window.

