When was Gemini Decision 1 released?

Google released Gemini Decision 1 on 11 Nov 2026. It is available through the Opper gateway.

Does Gemini Decision 1 support zero data retention?

With abuse monitoring, yes. On Google Cloud through the Opper gateway, prompts and outputs are not used for training and are kept only for abuse monitoring.

Where is Gemini Decision 1 hosted?

Gemini Decision 1 runs on US hosting routes through the Opper gateway.

Is Gemini Decision 1 trained on prompts and outputs?

No. Every hosting route for Gemini Decision 1 is configured so customer prompts and outputs are not used to train models by default.

Gemini Decision 1

by Google

Released 14 days after Gemini 4 Carbon · Announcement · All Google releases

Gemini Decision 1 evaluates independent questions against shared multimodal input in a single pass. It returns yes/no probabilities, choices with option distributions, and probability-weighted rubric scores without generating text. Applications include model routing, policy checks, tool selection and content grading. The model accepts text, images, audio, video and PDFs within a 262,144-token context. Opper's current compatibility integration exposes text and inline images on Decisions, and JSON state on System One.

Call Gemini Decision 1 on Opper through the System One evaluation API. Sign up without a credit card. Get started

Get your API key Evaluate via API Compare

Key info

Input

Output

Features

Context window

262K

Input price

$0.10 /1M

Released

11 Nov 2026

US residency available
Zero data retention with abuse monitoring
No training by default

Available routes

Gemini Decision 1 runs on 1 route through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.

Provider	Region	Zero data retention	Training	Input	Output	Cache read
Google Cloud	US		No	$0.10	—	Input price

Live routes and prices as JSON: api.opper.ai/v3/models?q=gemini%2Fgemini-decision-1

Uptime and availability

Gemini Decision 1 runs on a single route through the Opper gateway today, so its availability is that provider's availability.

98.86%route uptime, last 30 days

Single route, no failover target within this model.

Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting Gemini Decision 1 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Google Cloud — United States🇺🇸

Zero data retention with abuse monitoring: prompts and outputs are kept for abuse monitoring only, for a window the provider does not state, and are not used for training. No training on customer data. US; SCCs.

Zero data retention: With abuse monitoring, window not stated.
Training: No training on customer data.
Logging: Abuse monitoring
Abuse monitoring: On by default, holds flagged content, 55 days, a person can view samples
Transfer mechanism: SCCs

Best for

The model directory pages that list Gemini Decision 1.

Listed inDecision models

Benchmarks

Gemini Decision 1 played 100 games of Pac-Man against the four arcade ghosts.

JevMan: the Pac-Man benchmark for AI decision models

Rank in our runs9 of 19

Mean score2,964

Best game5,210

Games100

See the JevMan benchmark →Compare all decision modelsScores from Opper's own runs. Updated Nov 12, 2026.

Get started

Call Gemini Decision 1 through the Opper gateway with one API key. Evaluate state against typed questions using TypeSafe’s System One API for yes/no decisions, classification, and rubric scoring.

See the Opper evaluation guide and the TypeSafe API reference for question types and response formats. Compare every decision model, on one API.

Gemini Decision 1 is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

1curl https://api.opper.ai/v3/compat/v1/systemone \
2  -H "Authorization: Bearer $OPPER_API_KEY" \
3  -H "Content-Type: application/json" \
4  -d '{
5    "model": "gemini/gemini-decision-1",
6    "state": "The customer cannot sign in and needs help immediately.",
7    "questions": {
8      "is_urgent": {
9        "type": "noul",
10        "instructions": "Does the customer need urgent help?"
11      }
12    }
13  }'