Skip to content
DecisionNodeDecisionNdedocs
  • Guides
  • API reference
  • Examples
  • Playground

start here

  • QuickstartGet startedGet an API key, send one request with three questions, and branch your code on the typed answers. Plain HTTPS, no SDK to install.
  • POST /v1/decideAPI referenceAnswer typed questions about a state and optional images. One request, one buffered JSON response, one answer per question.
  • QuestionsConceptsQuestions say what to decide. Each one has a type that fixes the shape of its answer: a choice from your options, a score on your scale, a…
  • ConfidenceConceptsProbabilities are calibrated per question type, so a threshold means what it says.
  • ImagesConceptsSend images and text in the same request. The model reads printed and handwritten text, amounts, dates, objects and layout, and answers…
  • Pricing and billingYou pay for input tokens only. Output is free because the model generates no text.
↑↓ moveopen6 suggestions
Get API keyGet API key
DecisionNodeDecisionNde

Get started

  • Introduction
  • Quickstart
  • With coding agents
  • Examples

Concepts

  • State
  • Questions
  • Choice
  • Score
  • Truth
  • Number
  • Images
  • Confidence
  • Determinism

Models

  • DecisionNode-1.0
  • DecisionNode-1.0 Flash
  • Limits

Patterns

  • Confidence-gated routing
  • Fan-out
  • Guardrails
  • Control loopscomingcoming soon

API reference

  • POST/v1/decide
  • POST/v1/sessionscomingcoming soon
  • GET/v1/models
  • Errors
  • Rate limits

Pricing and billing

  • Pricing and billing

Policies

  • Responsible use

Migrate

  • Coming from a Jev-shaped API
  • Benchmarks
  • Pricing
  • Playground
Get API key
  • Guides
  • API reference
  • Examples
  • Playground

Get started

  • Introduction
  • Quickstart
  • With coding agents
  • Examples

Concepts

  • State
  • Questions
  • Choice
  • Score
  • Truth
  • Number
  • Images
  • Confidence
  • Determinism

Models

  • DecisionNode-1.0
  • DecisionNode-1.0 Flash
  • Limits

Patterns

  • Confidence-gated routing
  • Fan-out
  • Guardrails
  • Control loopscomingcoming soon

API reference

  • POST/v1/decide
  • POST/v1/sessionscomingcoming soon
  • GET/v1/models
  • Errors
  • Rate limits

Pricing and billing

  • Pricing and billing

Policies

  • Responsible use

Migrate

  • Coming from a Jev-shaped API
  1. docs
  2. /
  3. Models

DecisionNode-1.0 Flash

The compact, fastest tier. Same API and answer shapes as DecisionNode-⁠1.0, chosen with the model field, at $0.021 per million input tokens (provisional).

model id
decisionnode-flash-latest (today decisionnode-1.0-flash)
Speed
About 5 ms for a short request, server side (measured October 2026)
Input
The same fields as the full model: state, images, questions
Context
64k tokens per request
Price
$0.021 per 1M input tokens (provisional), output free

When to use it#

  • High volume: moderation of every comment, triage of every event, scoring of every row.
  • Inside a latency budget: a check on the hot path of a request, or a gate in front of every agent step.
  • Clear decisions: short inputs and well separated options, where the full model's extra capacity is not needed.

Try both on your data

Run a sample of real inputs through both models. Where Flash agrees with the full model above your confidence threshold, use Flash; route the rest to the full model. This is a two-line change, because only model differs.

Calling it#

curl https://api.decisionnode.com/v1/decide \
  -H "Authorization: Bearer $DECISIONNODE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "decisionnode-flash-latest",
    "state": "Customer: I was charged twice and nobody has replied for 3 days.",
    "questions": {
      "route": {
        "type": "choice",
        "instructions": "Where should this go?",
        "criteria": {
          "billing": "money",
          "bug": "broken",
          "account": "login"
        }
      },
      "urgency": {
        "type": "score",
        "instructions": "How urgent is this?",
        "criteria": ["routine", "today", "urgent", "critical"]
      },
      "refund": {
        "type": "truth",
        "instructions": "Refund this automatically?"
      }
    }
  }'

Only model changes. At $0.021 per million, the 62-token request above costs $0.0000013, and a million of them about $1.30.

previousDecisionNode-1.0nextLimits

DecisionNode is built and run by Bynn Intelligence, Inc.

  • Home
  • Playground
  • Examples
  • Console
  • Responsible use
  • Terms
  • Acceptable use
  • Privacy
  • Data processing
  • Defence addendum
  • Cookies

on this page

  1. When to use it
  2. Calling it