gpt-oss, Gemma) and free variants are excluded before settlement, so a lab’s totals sit below its published all-model figures.
Daily grain only. No Basic window: every request needs a Premium or Full key. See Access tiers.
Four charts on the platform
The page at data.ornn.com/analytics/models/volume draws four series from one feed. Token Share and Volume Growth each have an independent selector over all 11 OTPI labs, and both open on the closed frontier three (anthropic, openai, google). Frontier Token Volume and Open vs Closed Share are fixed universes — a selector would make their titles wrong.
Share is a per-day ratio, valid on every day the selected labs reported, so it is not trimmed to the shared growth base. Growth is: drawing days before the common start would put some labs below 100 while a late arrival had no line at all.
Tracked labs
The same 11 as OTPI: Closed.anthropic · openai · google
Open-weight. deepseek · minimax · xiaomi · qwen · moonshotai · z-ai · mistralai · meta-llama
The REST series
GET /api/token-volume publishes the closed-lab slice of the same volumes:
growthIndex— each lab indexed to 100 at its own first settled day, not a shared day. Fixed-base: overlapping windows return identical values for the same date.share— of the closed-lab daily total.totalGrowthIndex— the three labs combined, indexed to 100 at the first date any of them reported.
startDate and endDate are required (YYYY-MM-DD). A lab that settled no volume on a day is left out of that day’s labs array rather than reported as zero. There is no lab filter: share is defined over the closed-lab total, so a single-lab read would answer share: 1 on every row.
The platform charts recompute share, the shared growth base, and the open/closed split client-side from the same settled rows. Those views are not extra fields on this endpoint. commonBaselineDate is absent from the REST response — a shared base is not a concept on the own-day series.
Related
- The Token Price Index — the per-token prices these volumes weight.
- The Workload Cost Index — the OTPI companion that prices the request rather than the token.
- Get the Token Volume Index by day — the REST schema and code samples.