Nimble

SOTA Decision Model

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API-first decision model that turns text into calibrated probabilities for every allowed answer — yes/no, best choice, or grades — with no sampling.

Homepage hero — decisions, with the odds attached

Homepage hero — decisions, with the odds attached

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Overview

What is Nimble?

SOTA Decision Model

Nimble by Bespoke Labs is a state-of-the-art decision model: a hosted API that turns text into decisions. Send the state and the answers you allow in one request, and it returns a calibrated probability for every option — no sampling, no regex-parsing of LLM outputs. Three decision types are supported: noul for yes/no probability, choice for picking the best option with per-option probabilities, and score for grading with per-level probabilities. Nimble-v4 and Nimble-v4-max push the frontier on the Decision Index benchmark, scoring +10.5 and +5.74 over Jev 1.13, with internal evals showing 43% fewer mistakes than Jev and +50pp on model-routing decisions. Pricing is simple: input tokens only ($0.04 per million for nimble-v4, $0.09 per million for nimble-v4-max), output tokens free, paid from prepaid credit — and new accounts get a $1 free credit on email verification (about 3,000 decisions). Built for developers building AI agents and apps that need reliable text classification, routing and moderation decisions.

Platforms and languages

Nimble Availability

Platforms

WebApi

Languages

English

Capabilities

Nimble Key Features

Calibrated probabilities per answer

One API request returns a calibrated probability for every allowed answer, eliminating sampling and regex-parsing of LLM outputs.

Three decision types

Supports noul (yes/no probability), choice (best option with per-option probabilities), and score (grade level with per-level probabilities).

SOTA decision accuracy

nimble-v4-max scores +10.5 over Jev 1.13 on the Decision Index benchmark, with 43% fewer mistakes than Jev in internal evals.

Input-tokens-only pricing

The hosted API charges for input tokens only ($0.04/M for nimble-v4, $0.09/M for nimble-v4-max) — output tokens are free.

Free credits to start

The web console offers free credits for testing, with a $1 credit grant on email verification (roughly 3,000 decisions).

Best for

Who uses Nimble?

Developers building AI agents and apps

make reliable text classification, routing and moderation decisions with calibrated probabilities

Plans and access

Nimble Pricing

Freemium

$0.04-$0.09 per million input tokens (output tokens free); $1 free credit on email verification.

Free trial available
View full pricing

Common questions

Nimble FAQs

What is Nimble?

Nimble is a hosted decision model by Bespoke Labs: send text and a set of allowed answers, and it returns a calibrated probability for every option — ideal for classification, routing and moderation.

How much does Nimble cost?

You pay for input tokens only: $0.04 per million for nimble-v4, $0.09 per million for nimble-v4-max. Output tokens are free. New accounts get a $1 free credit after email verification.

What decision types does it support?

Three: noul (yes/no probability), choice (best option with per-option probabilities), and score (grade level with per-level probabilities).

How accurate is it?

Nimble-v4-max scores +10.5 over Jev 1.13 on the Decision Index benchmark, and Bespoke Labs' internal evals report 43% fewer mistakes than Jev.

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