FLUX Outpainting endpoint extends images up to 4MP without a prompt

A new FLUX Tools endpoint that extends an image beyond its borders in a single call — no prompt required.

Key Features

• Natural scene extension — Carries lighting, texture, depth, and composition past the original frame
• Flexible canvas control — Direct width / height and reference placement via reference_offset_x / reference_offset_y
• Up to 4MP output — Production-ready resolutions for banners, social formats, and aspect-ratio changes
• No prompt needed — The model continues the existing scene on its own

Endpoint

POST /v1/flux-tools/outpainting-v1

Get started in the FLUX Outpainting documentation, try the public demo, or read the announcement.