Decisions Fast

Decisions Fast is Parallel AI’s evaluation model for fast classification and scoring grounded in live web evidence. It answers yes/no, multiple-choice, and ordered scoring questions with probabilities and citations. Each request supports up to 100 related questions sharing the same context and retrieved evidence, with flat per-request pricing. Your use is subject to Parallel AI's Terms & Privacy Policies.

Price: $1, Per 1K requests

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import { experimental_decide as decide } from 'ai';

const result = await decide({
  model: 'parallel/parallel-decisions-fast',
  state: 'The support agent issued a full refund to the customer.',
  questions: {
    refunded: {
      type: 'boolean',
      instructions: 'Was a refund issued?',
    },
  },
})

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Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.

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Provider

Context	Input	Output	ZDR	No Training	Regional Inference	Free AI Gateway Credit	Release Date

Parallel AI

Legal:Terms•Privacy

32K

$1/K requests

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11/06/2026