Decisions API | Decision Models, Playground & API
Explore decision models with Decisions API. Compare models in the playground, then classify, score, and route text through one API. Start with 100 credits.
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# Decisions API
> Decisions API brings decision models together in one playground and API. Classify, score, and route text with structured answers. Start with 100 credits.
## Pages
- [Span-01](https://decisions-api.dev/model/span-01): Noul-only behavior evaluation. Web and API cost 300 credits/million input tokens, minimum 1.
- [Span-01 Lite](https://decisions-api.dev/model/span-01-lite): Lightweight behavior evaluation. Web and API cost 1 credit per successful request.
- [Home](https://decisions-api.dev): Landing page
- [Pricing](https://decisions-api.dev/pricing): Pricing plans
- [OpenAI Decisions API vs Jev](https://decisions-api.dev/openai-decisions-api-vs-jev): Compare Jev’s documented API with OpenAI Decisions API launch reports: access, text and image inputs, pricing, latency, and probability calibration. Sources reviewed September 30, 2026.
- [Kev 4B](https://decisions-api.dev/model/kev-4b): Credit-based playground and decision API; same input-token credit rate as Jev. New accounts receive 100 credits.
- [Solar Decide](https://decisions-api.dev/model/solar-decide): Upstage structured decision model with Jev-compatible System One input and output, available in the Jev playground and API.