AvailableGoogleImageSync
gemini-3.1-flash-image

Build next-gen apps with gemini-3.1-flash-image

API Code Example

Pricing

TokenLab Price

Input $0.25 / Output $1.50

Per Token

Discount: 50%

One-click test

Sign in once and Web Agent keeps this model, prompt, and request preset for you.

Test gemini-3.1-flash-image in Web Agent. Run the recommended text-to-image image request at /v1/images/generations, then show the request body, returned image or task status, and model-specific constraints.

API workbench

The default route for production. The code sample below uses this endpoint with the format you pick.

text-to-imageTokenLab endpoint
POST/v1beta/models/gemini-3.1-flash-image:generateContent
API Format:
curl "https://api.tokenlab.sh/v1beta/models/gemini-3.1-flash-image:generateContent" \
  -H "Content-Type: application/json" \
  -H "x-goog-api-key: sk-xxx" \
  -d '{
    "contents": [
      {"role": "user", "parts": [{"text": "Hello!"}]}
    ]
  }'

Use cases

Best for

Text to Image

Producing product imagery, illustrations, and design variations

Vision

Reading images, parsing documents, and answering visual questions

01

Product visuals

Make campaign images, catalog scenes, and design directions from a few prompts.

02

Iterative editing

Try edits and variations using the request shape this model already accepts.

03

Creative QA

Sanity-check prompt behavior, output count, and response mode before you ship.

04

Side-by-side test

See real response quality, latency, and price before this becomes your production default.

Prompt examples

Generate a clean product shot of matte black headphones on a soft blue gradient.

Edit the source image into a premium ecommerce hero with natural shadows.

Give me three visual directions for a developer-tool launch banner.

Cost Calculator

1M
0.5M
Estimated Monthly Cost$1.00

FAQ

How much does gemini-3.1-flash-image cost?

On TokenLab, gemini-3.1-flash-image costs Input $0.25 / Output $1.50 Per Token. The pricing table above shows the full breakdown.

What is gemini-3.1-flash-image best for?

gemini-3.1-flash-image is a strong fit for Text to Image, Vision, Image Edit. You can call it through TokenLab with one API key.

How do I call the gemini-3.1-flash-image API?

Get a TokenLab API key, then send your request to https://api.tokenlab.sh/v1beta/models/gemini-3.1-flash-image:generateContent. The API workbench above has a recommended endpoint and copy-ready code.

Which endpoint should gemini-3.1-flash-image use?

Use https://api.tokenlab.sh/v1/images/generations as the default for gemini-3.1-flash-image. If a provider-native format is supported, the API workbench shows that endpoint too.

Can I test gemini-3.1-flash-image before integrating it?

Yes. Try in Web Agent opens a ready test for gemini-3.1-flash-image and keeps your prompt after sign-in, so you don’t lose context.

Which operations does gemini-3.1-flash-image support?

gemini-3.1-flash-image supports text-to-image, image-edit. Pick an operation in the API workbench above to see the matching endpoint and code sample.

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