FLUX.2 Flex Text-to-image

Use FLUX.2 Flex Text-to-image for image; see supported inputs and option-based pricing on this page.

modellane/black-forest-labs-flux-2-flex-text-to-image-1e4b8691 · Text to image · Black Forest Labs

FLUX.2 Flex Text-to-image supports text to image. Its documented input fields are listed below; the request price is calculated from the selected options.

Vendor
Black Forest Labs
Task
Text to image
Output
Image
Price
$0 · per run

Input parameters

  • Prompt prompt — required Describe what you want produced as concretely as you can.
  • Prompt expansion enable_prompt_expansion — optional, default: true
  • Size size — optional, advanced
  • Prompt adherence guidance_scale — optional, default: 5, range: 1.5–10 A high value stays close to the prompt, a low value leaves the model more room.
  • Steps num_inference_steps — optional, default: 50, range: 1–50 More steps usually give a cleaner result and take longer.
  • Output format output_format — optional, options: jpeg, png
  • Safety tolerance safety_tolerance — optional, default: 2, range: 0–5
  • Seed seed — optional, default: -1 The same seed and the same settings produce a similar result; leave it empty and one is picked at random.

Recommended use cases

    Where it is strong

      Limits

        Example prompt

        A red bicycle against a stone wall at sunset, in natural light.

        Example request

        POST /v1/queue/modellane/black-forest-labs-flux-2-flex-text-to-image-1e4b8691

        Playground

        The identifier, price, parameters, and example requests on this page can be read without signing in. Running the model from the panel sends a real generation request and charges the project balance; the playground therefore requires an account.