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Overview Models Image, video & speech Coding tools Production API reference

Overview Models Image, video & speech Coding tools Production API reference

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gemini-3.1-flash-lite-image

Models Gemini Image

gemini-3.1-flash-lite-imageImageExamples verified 2026-09-25

Gemini 3.1 Flash Lite Image

The lowest-priced Gemini image model at $0.0336 / image, 1K only.

Official price: $0.0336/ image
Size tiers: 1K
Images per request: 1–101K ≤ 10
Reference images: Up to 14≤ 25 MiB each
Aspect ratios: 1:1 2:3 3:2 3:4 4:3 4:5 5:4 9:16 16:9 21:9
Not supported (returns 400): mask、background=transparent

Notes

Masks and transparent backgrounds aren't supported and return 400.
The "Gemini Official Direct" group has no /v1/images/edits; pass reference images in image / images on generations.
1K only.
Accepts 14 reference images but isn't optimized for many; for multi-image compositing use gemini-3.1-flash-image.

Build a requestJSON Schema

Available groups

Gemini (all models, incl. image)
Gemini Official Direct

Integration guide

Gemini image generation

Pricing

Official price in USD. Actual charge = official price × group multiplier.

1K: $0.0336 / image
Per token · Input: $0.25 / 1M tokens
Per token · Cached input: $0.025 / 1M tokens
Per token · Output (incl. images): $30 / 1M tokens

Endpoints

POST/v1/images/generations
POST/v1/images/edits
GET/v1/images/tasks?task_id={task_id}

Same family

gemini-3.1-flash-image-preview gemini-3.1-flash-image gemini-3-pro-image gemini-2.5-flash-image

Prices come from the public catalog; limits come from specs exported from the gateway’s validation code. Actual charge = official price × group multiplier.