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Generates images from text prompts with FLUX.3 Klein Base, with configurable guidance, negative prompts, inference steps and optional bounding-box layout control.
images
Details
- Accepts
- text
Pricing
- Price
- 3.38 cr / megapixel
Prices in credits (1 credit = $0.01).
Data schema
Input
| Field | Type | Description |
|---|---|---|
| seed | — | The same seed and the same prompt given to the same version of the model will output the same image every time. |
| promptrequired | string | The prompt to generate an image from. The model is trained on detailed captions: describe framing, subject, background and lighting. |
| sync_mode | boolean | If `True`, the media will be returned as a data URI and the output data won't be available in the request history. |
| image_size | — | The size of the generated image. Each side can be 256 to 4096 pixels (native 4K). |
| num_images | integer | The number of images to generate. |
| output_format | stringenum: jpeg, png, webp | The format of the generated image. |
| bounding_boxes | — | Optional layout: draw each described object inside its box. Box edges are fractions of the image size, with (0, 0) at the top-left. Name boxes in the prompt by label, e.g. `A red fox <fox> sits under a red umbrella <umbrella>`. |
| enable_safety_checker | boolean | If set to true, the safety checker will be enabled. |
| enable_prompt_expansion | boolean | If set to true, the prompt is expanded into a detailed caption (grounded in the reference images when editing) before generation. |
Output
| Field | Type | Description |
|---|---|---|
| seed | integer | Seed used to generate the first image. |
| images | array | The generated images. |
| prompt | string | The prompt used for generating the image. |
| timings | object | The timings of the generation process. |
| has_nsfw_concepts | array | Whether the generated images contain NSFW concepts. |