Model ID

gemini-3.1-flash-lite-image

Calling method: sync

Gemini 3.1 Flash-Lite Image (Nano Banana 2 Lite)

Overview

Gemini 3.1 Flash-Lite Image generates and edits images from text and reference images, optimized for speed and cost. Output is 1K resolution.

Authentication

Authorization: Bearer YOUR_API_KEY

Submit a request

curl -X POST "https://console.gmicloud.ai/api/v1/ie/requestqueue/apikey/requests" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gemini-3.1-flash-lite-image",
    "payload": {
      "prompt": "A hyperrealistic portrait of a cyberpunk woman under neon lights",
      "image": ["https://example.com/ref1.jpg"],
      "aspect_ratio": "4:5",
      "thinking": "high"
    }
  }'

Request parameters

Parameter	Type	Required	Description
`prompt`	string	Yes (single-turn)	Text description of the target image. Required unless `contents` is provided.
`image`	string/array	No	Reference image URLs for image-guided generation/editing.
`aspect_ratio`	enum	No	`1:1` (default), `3:2`, `2:3`, `3:4`, `4:3`, `4:5`, `5:4`, `9:16`, `16:9`, `21:9`.
`image_output_format`	enum	No	`png` (default) or `jpeg`.
`contents`	array	No	Multi-turn conversation payload for iterative editing. When provided, `prompt`/`image` are ignored.
`thinking`	enum	No	Reasoning effort: `minimal` or `high`. Higher improves quality on complex prompts at a small extra reasoning-token cost. Omit for the model default.

Check status

curl "https://console.gmicloud.ai/api/v1/ie/requestqueue/apikey/requests/{request_id}" \
  -H "Authorization: Bearer YOUR_API_KEY"

On success, outcome.media_urls[0].url is the generated image.

Pricing

**Image output: $30 per 1M tokens** (1K image ≈ 1120 tokens ≈$ 0.034/image).
Input (text, image, video): $0.25 per 1M tokens.
Text output (response/reasoning): $1.50 per 1M tokens.

Notes

Output resolution is fixed at 1K (720p-class) in this release.
thinking accepts only minimal or high for this model (other levels are rejected).

gemini-3.1-flash-image-preview Gemini-batch-inference

Overview

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gemini-3.1-flash-lite-image

Gemini 3.1 Flash-Lite Image (Nano Banana 2 Lite)

Overview

Authentication

Submit a request

Request parameters

Check status

Pricing

Notes

​Gemini 3.1 Flash-Lite Image (Nano Banana 2 Lite)

​Overview

​Authentication

​Submit a request

​Request parameters

​Check status

​Pricing

​Notes

Gemini 3.1 Flash-Lite Image (Nano Banana 2 Lite)

Overview

Authentication

Submit a request

Request parameters

Check status

Pricing

Notes