FLUX 3 Image lets you place every object with bounding boxes

FLUX 3 Image lets you place every object with bounding boxes

Black Forest Labs introduces FLUX 3 Image, a model built for maximum control over every pixel. Users can compose images from scratch by laying out elements with bounding boxes on a 0-to-1000 grid, then replay and refine the result. The model supports precise editing, multiple aspect ratios, and commercial weights, with a demo and documentation available now.

Lay out the image exactly how you want using bounding boxes.
  1. vunderba

    One of the things they seem to be emphasizing here is the UX around being able to place specific elements where you want them in an image. If the positions of the components in the overall composition are very important, this seems to make that a lot easier and kind of reminds me of InvokeAI.

    Ideogram V4, an open-weight model released back in June can also do this [1], but you have to use a relatively cumbersome JSON structure to describe all the different bounding boxes. So it’s definitely a bit of a hassle.

    I'll probably be waiting until it goes open-weight (hopefully soon) like they did with Flux.2 / Klein.

    [1] - https://docs.ideogram.ai/using-ideogram/getting-started/prom...

  2. htrp

    https://news.ycombinator.com/item?id=49031796

    What's new from the last post? GA?

  3. arnaudsm

    The UX looks amazing and very steerable, congrats to the team for focusing on the interface.

    Chats can be awful user interfaces.

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2026-10-02