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Black Forest Labs · Image model
FLUX.3 Image
black-forest-labs/flux-3-image- Image
FLUX.3 Image is Black Forest Labs' flagship image generation and editing model. It handles text-to-image and multi-reference editing with up to 10 input images, and renders at fixed resolution tiers...
Specifications
- Input
- text, image
- Output
- image
- Editing
- yes, up to 10 reference images
- Images per call
- 1
- Served by
- Black Forest Labs
Request options
Validated against these values; anything else returns 400 with the allowed list.
- resolution
- 768, 1K, 1.5K, 2K, 4K
- aspect_ratio
- 21:9, 2:1, 16:9, 3:2, 7:5, 4:3, 5:4, 1:1, 4:5, 3:4, 5:7, 2:3, 9:16, 1:2, 9:21, auto
Use it
POST /api/v1/images · /images/edits · MCP generate_image · edit_image · full reference
curl https://omnirail.org/api/v1/images \
-H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
-d '{"model":"black-forest-labs/flux-3-image","prompt":"a lighthouse at dawn, 35mm film","aspect_ratio":"1:1"}'