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Decider

Provided by: system-one.dev

Reads text and JSON and returns a choice, a score, or a yes/no answer.

Model info

  • Provided by: system-one.dev
  • 1 credit per question per 4KB
  • Up to 32 questions · 64KB per request
  • Inputs: text and JSON
  • Pick one: up to 255 options; Score: 2–10 levels
  • Released 2026-10-07

Uses

Last updated 2026-10-12

Open GET /v1/models · Developer docs · Try live (sign in required)

Frequently asked questions

Is Decider a large language model?
No. It does not write a reply or explain its reason. You ask a few questions and it only returns a choice, a score, or a probability. Use a generative model when you need written content.
How is Decider different from Jev?
Both models accept only text and JSON, and the request format is the same. The main difference is the rate; see each page’s Model info. To see which works better, swap the model ID on the same data. Details: Jev model page.
Does Decider support Chinese?
Test Chinese results with your own data first.
How is it billed?
By credits: every 4KB is one block, and a partial block still counts as one. Cost = blocks × questions × the model rate. See Model info on this page. Details: Pricing.
How do I choose Decider?
Send the full model ID in the request. If you omit it, the default model is used. The model ID is in Model info on this page.
Can I try it live?
Yes. Try live (sign in required).