OPENROUTER ECOSYSTEM OBSERVATORY
See which AI apps are using which models.
Sightings observes OpenRouter's public traffic rankings and public model pages to map app ↔ model relationships over time.
- Models ranked
- 47
- yesterday, closed UTC day
- Observed apps
- 7288
- after alias collapse
- App ↔ model sightings
- 1859
- Latest closed day
- 2026-10-31
Model directory · through 2026-10-31
| Model | Tokens · yesterday | Rank | Top observed app | Apps observed |
|---|---|---|---|---|
| NVIDIA: Nemotron 3 Ultra (free)nvidia/nemotron-3-ultra-550b-a55b:free | — | — | not scraped yet | 0 / 5 observed |
| NVIDIA: Nemotron 3.5 Lightning (free)nvidia/nemotron-3.5-lightning:free | — | — | Hermes Agent | 5 / 5 observed |
How this works
Sightings observes OpenRouter's public traffic rankings and public model pages. Verified means observed in OpenRouter-published evidence — never an audit of an app's private infrastructure or a claim of exclusive model usage.
Definitions: new — listed on OpenRouter within the last 30 days; established — a top-10 app by summed popular-ranking token traffic over the trailing 90 days; external — an app identity seen only as an external link on model pages; unresolved — an app label with no stable slug or origin evidence yet.
First-observed dates mean first observed by Sightings, not the start of an app's model usage. Sightings makes no movers or switching claims until historical backfill completes. Coverage limits: model pages expose at most five apps per scrape; app rankings reach about the top 200 per day. See the full methodology and interpretation guide.