Span-01 Lite is the free, lighter tier of Span-01, a behavior scoring model from Respan.
https://openrouter.ai/api/v1 respan/span-01-lite-20260925:free Respan: Span-01 Lite (free) is listed for chat workloads.
Check OpenRouter's current endpoint status before integrating this listing. Use the alternatives table if the provider listing is unavailable.
We only found this Respan: Span-01 Lite (free) listing on OpenRouter in the current catalog. Use the related models section for nearby alternatives.
| Provider | Model listing | Access | Context | API | Limits |
|---|---|---|---|---|---|
| | Respan: Span-01 Lite (free) | Check provider | 0 | OpenAI-style | 200 req/day (free tier) |
| Model | Provider | Context | Access |
|---|---|---|---|
| Space Bunny Alpha | OpenRouter | 1.0M | Free tier |
| inclusionAI: Ling 3.0 Flash Sante (free) | OpenRouter | 262K | Free tier |
| inclusionAI: Ling 3.0 Flash Fin (free) | OpenRouter | 262K | Free tier |
| Qwen: Qwen3.8 27B (free) | OpenRouter | 262K | Free tier |
| Dots Studio: Dots3-Note Preview (free) | OpenRouter | 512K | Free tier |
Respan: Span-01 Lite (free) is tagged for chat in this catalog and works with OpenAI-compatible client libraries.
Respan: Span-01 Lite (free) appears in the free model catalog for OpenRouter, but its current endpoint availability should be confirmed with the provider before use.
The model ID shown in this catalog is respan/span-01-lite-20260925:free.
The listed free tier limit is 200 req/day (free tier). Limits can change per account tier, so confirm against the provider dashboard.
Span-01 Lite is the free, lighter tier of Span-01, a behavior scoring model from Respan. It returns, for each plain-language behavior you define, the probability that the behavior is present in a conversation span, and is suited for high-volume evaluation and monitoring where cost matters more than peak accuracy.
For API keys, setup steps, and provider-level limits, see the OpenRouter provider page.