gemini-3.1-flash-image

Model ID: gemini-3.1-flash-image
Vendor: Google
Category: Image Models

Use gemini-3.1-flash-image with the compatible FoxRouter API below. Prices and groups are synced from foxrouter.org/pricing when the documentation is built; account groups and availability are shown in the console.

#Pricing

List price

Per request: ¥0.055 / request

Price by groupUnit: ¥ / request, list price × group multiplier

Group	Per request
default分组×1默认分组	¥0.055
绘图&视频分组×1有绘图或视频需求选这个分组	¥0.055

Prices and groups synced at 2026-10-30.

#Image generation

POSThttps://foxrouter.org/v1/images/generations

#Request parameters

Parameter	Type	Required	Default	Description
`prompt`	`string`	Yes	—	Text prompt describing the desired image generation or edit.
`aspect_ratio`	`string`	No	`"1:1"`	Aspect ratio of the output image.
`image_size`	`string`	No	`"1K"`	Output resolution tier or preset alias, e.g. 1K, 2K, 4K, square_hd.
`image_urls`	`array`	No	—	Reference images for generation or multi-image editing, one per line, maximum 6.
`previous_request_id`	`string`	No	—	request_id (it_...) of the immediately preceding image generation/edit owned by the same API key, enabling multi-turn editing.
`seed`	`integer`	No	—	Random seed for reproducible generation.

#Request example

bash

curl -X POST "https://foxrouter.org/v1/images/generations" \
  -H "Authorization: Bearer $FOXROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gemini-3.1-flash-image",
  "prompt": "A minimalist product poster of a ceramic vase, soft studio light.",
  "aspect_ratio": "1:1",
  "image_size": "1K"
}'

#Pricing

#Image generation

#Request parameters

#Request example

#Try it online