FLUX Outpainting adds a mode parameter with fast and high options

FLUX Outpainting now supports a mode parameter that trades quality for speed.

Key Features

• mode: "fast" — Significantly faster extension, well-suited for landscapes, backgrounds, textures, and products. Typically lower cost.
• mode: "high" (default) — Unchanged highest-fidelity path; recommended when fine detail, prompt adherence, or consistency with complex source content matters.
• Same contract — Both modes share the same request fields and response format; omit mode to keep the existing high behavior.

Endpoint

POST /v1/flux-tools/outpainting-v1

See Choosing a mode in the FLUX Outpainting documentation.