First call without downloading weights
Valen scores supplied candidates for text, images and video. Start with the hosted text API; availability and quotas depend on the service. No local model or training environment is needed.
curl https://api.valen-team.workers.dev/v1/decisions \
-H 'Content-Type: application/json' \
-d '{"model":"valen-2b","input":"A cat is on the sofa.","questions":[{"name":"cat","type":"predicate","instructions":"A cat is present."}]}'
Read answers[0].probability as the model's probability of the statement. It is not a correctness guarantee. Confirm available model IDs through model listing. For authentication, limits and errors see API.
Next: choose size, format and backend, use probabilities, or follow a complete Cookbook workflow. Local model downloads are optional and can be large.
The 26 October 2026 text probe succeeded for free-service valen-2b / valen-4b; listed valen-0.8b returned 403 (not allowed for the service credential). This page therefore starts with valen-2b. This is a service-availability check, not model quality or all-backend qualification.