Try Umbra — no signup.

Write a short prompt. Umbra routes it to an available public model on attested Apple Silicon. No signup required.

Umbra · anonymous test

Try a private prompt.

Anonymous · short replies · rate-limited

Ask anything. This hits the same private inference path as the API.

Anonymous demo · capped output · prompts never logged. How privacy works →

Read the quickstartSwap your base_url, keep your SDK.

Technical details