Product overview
Sage is a developer API from Levanto Labs for adding decisions and extraction to application workflows. Applications define questions and criteria, then receive structured answers with confidence values. Decision types include yes/no, choice, scale, tags and sorting. Its extraction endpoint returns typed fields from natural-language content, while a WebSocket session updates decisions as new text arrives. Vision is labelled beta. The application remains responsible for tool execution, validation, uncertain-result handling and fallbacks. A free plan includes $1 of usage per month; paid plans start at $14 monthly, with separate output-token…
What Sage by Levanto offers
- 01Return typed decisions with confidence values
- 02Extract typed fields from natural-language content
- 03Update decisions over growing text through WebSocket sessions
- 04Analyze images through the beta vision feature
What makes it different
Sage supplies decision and extraction results to application code. It does not execute the application’s tools; developers define thresholds, validation and fallbacks for uncertain answers.
Who should consider it
- Developers routing agent tools or classifying application events
- Teams extracting structured fields from messages and documents
What to verify
- Try one real task and compare its output with your requirements.
- Check what data the service stores, shares, or uses for training.
- Confirm current pricing, usage limits, and cancellation terms on the official site.
Official link checked on Nov 9, 2026. Feature claims have not been independently tested.
