Providers + pricing
| Capabilities | Provider details | ||||
|---|---|---|---|---|---|
| ● Your own key · billed by your provider · AnyRouter fee $0 | |||||
OpenRouter openrouter-byok | BYOK | — | Unavailable | ||
| ● Free pool · donated keys · not available for this model — donate a key | |||||
Try it
Decisions try-it
Request
Typed questions
- requires_replynoul
- request_typechoice
- business_impactscore
respan/span-01-lite
Uptime + latency
No health checks recorded for this model yet.
More performance detail
Your access
Run Span-01 Lite on your own key — your requests are billed by the provider. Pool callers pay AnyRouter credits.
No BYOK keys configured for this model yet.
Share a key with the pool to earn credits for every request it serves, covering your plan cost.
About
Span-01 Lite is a behavior-scoring classifier from Respan — the free, lighter tier of Span-01, a 4B model trained with RLAIF on classification reasoning rather than fixed taxonomies. Send a conversation span and a set of plain-language behavior definitions and get a present / absent / not_observable probability per behavior in a single forward pass, with no token-by-token generation. Respan reports it ahead of Jev 1.13 and Sonnet 5 on their English and multilingual behavior-detection suites. Call POST /api/v1/decisions (POST /api/v1/systemone is the same handler).
Released 2026-09-26 · params: state · model · questions
