ImageFast

Gemini 3.1 Flash Image

by Google

Fast, conversational generation and editing with strong prompt following.

Spec sheet

Model ID: google/gemini-3.1-flash-image
Type: Image
Max output: 2K
Speed: Fast
Capabilities: Text to image
Image editing
Multi-reference

About the model

Gemini 3.1 Flash Image is built for iteration. Describe a change in plain language and it applies it in seconds, which makes it ideal for interactive tools, chat interfaces and workflows that refine an image over several turns.

Swap it anytime

Every model takes the same request, so moving to another one means changing the model ID and nothing else.

Call it in a few lines.

request.sh

curl https://api.monogram.dev/v1/generations \
  -H "Authorization: Bearer $MONOGRAM_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google/gemini-3.1-flash-image",
    "input": {
      "prompt": "A crystal perfume bottle on black marble, gold rim light, 1920s poster",
      "aspect_ratio": "4:5"
    }
  }'