Gemini Decision 1 via the Tokenator API

What the model is for

Gemini Decision 1 is Google's model for the Decisions API. It answers structured questions about an input state (true/false, multiple choice with up to 255 options, and score with up to 255 levels) and returns a confidence for every answer, plus a legend and probabilities for score questions. It reads text, images, audio, video, and documents (PDF, CSV, and Office files) sent inline as base64 or by public URL. Every question needs instructions.

Specification

Full nameGemini Decision 1
API IDgemini-decision-1
Model vendorGemini
TypeDecisions (probabilities for typed questions)
Context window262.1K tokens
Tokenator usage multiplier1.3×
BadgeNEW
Input modalitiestext, image, audio, video, file
Supported API formats/v1/decisions
Upstream providers1
Current statusavailable
Data updated2026-11-13

Upstream providers

ProviderMultiplier
Unified LLM API1.3×

A request goes to the first available provider by priority; if it fails, Tokenator switches to the next one.

Example request

curl
curl https://api.tokenator.top/v1/decisions \
  -H "Authorization: Bearer sk-your-tokenator-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-decision-1",
    "state": "My checkout page shows a blank screen after I click Pay. I have tried two browsers.",
    "questions": {
      "is_bug": {
        "type": "noul",
        "instructions": "Is the customer reporting a software defect?",
        "criteria": {
          "true": "The customer describes broken or unexpected product behavior.",
          "false": "The customer is asking a question or requesting a feature."
        }
      },
      "team": {
        "type": "choice",
        "instructions": "Which team should own this ticket?",
        "criteria": {
          "account": "Login, permissions, or profile issues.",
          "frontend": "Rendering, layout, or browser compatibility issues.",
          "payments": "Checkout, billing, or payment processing issues."
        }
      },
      "urgency": {
        "type": "score",
        "instructions": "How urgent is this ticket?",
        "criteria": [
          "Can wait for the next release",
          "Should be fixed this week",
          "Blocking revenue right now"
        ]
      }
    }
  }'

FAQ about Gemini Decision 1

What is the API ID of Gemini Decision 1?

gemini-decision-1 — put this into the model field of your request.

What context window does Gemini Decision 1 have?

262.1K tokens.

How many tokens will a request cost?

input × 1.3× — the answer with its probabilities is not billed, you pay for the input only: the state and the questions. See the documentation for details.

How do I call this model?

Through /v1/decisions only: the chat endpoints refuse such a model. Question types, the answer shape and examples are in the decisions documentation.