Generates images from text prompts with FLUX.3 Klein Base, with configurable guidance, negative prompts, inference steps and optional bounding-box layout control.

blackforestlabs/flux-3/klein/base/text-to-image

Generates images from text prompts with FLUX.3 Klein Base, with configurable guidance, negative prompts, inference steps and optional bounding-box layout control.

Inference

Commercial use

Schema

LLMs

Playground API Examples

Input

Prompt*

Additional Settings

Customize your input with more control.

Result

Idle

What would you like to do next?

blackforestlabs/flux-3/klein/base/text-to-image

Schema

Input

Prompt*

Additional Settings

Customize your input with more control.

Result

Idle

What would you like to do next?

Input

Prompt*

A finished independent botanical arts magazine cover, straight-on flat print design with all edges visible. Background deep forest green, coral and pale lemon inks. An intricate botanical cyanotype collage of giant fern fronds, seed pods and luminous cream wildflowers grows across the right half, tactile paper grain. The masthead in huge custom curving psychedelic 1970s serif letters reads "FIELD NOTES". A coral circular seal in the upper right reads "ISSUE 08". On the left, six clearly legible cover lines in large contrasting editorial type, each phrase once: "THE WILD ISSUE", "Gardens after dark", "An atlas of small wonders", "Art, ecology and imagination", "GROW SOMETHING UNEXPECTED", "AUTUMN 2026". At bottom, spaced capitals read "INDEPENDENT CULTURE JOURNAL". Expressive hand-drawn display lettering, disciplined magazine grid, colorful sophisticated illustration, dramatic type scale. Exact listed wording, only listed text, no extra filler, no unreadable tiny text, no mockup surroundings.

Image Size

Locked: editing one side keeps the current ratio. Tap the lock to free it.

Layout (optional)

Place objects by drawing regions on the output canvas.

Additional Settings

Customize your input with more control.

Planned per-image pricing by output resolution: 768×768: $0.024, 1K: $0.027, 1.5K: $0.033, 2K: $0.042, and 4K: $0.108. The same schedule is planned for text-to-image generation and image editing.

Result

Idle

What would you like to do next?

Download

{
  "images": [
    {
      "url": "https://v3b.fal.media/files/b/0aae6155/_oVsXxRC7V_xC2HpsubFO_YnEkZuA5.png",
      "content_type": "image/png",
      "file_name": "_oVsXxRC7V_xC2HpsubFO_YnEkZuA5.png",
      "file_size": null,
      "width": 1024,
      "height": 1360
    }
  ],
  "timings": {
    "prompt_expansion": 0.000006646005203947425,
    "inference": 3.8747413639939623,
    "safety_checker": 0.01818431400170084
  },
  "seed": 20261016,
  "has_nsfw_concepts": [
    false
  ],
  "prompt": "A finished independent botanical arts magazine cover, straight-on flat print design with all edges visible. Background deep forest green, coral and pale lemon inks. An intricate botanical cyanotype collage of giant fern fronds, seed pods and luminous cream wildflowers grows across the right half, tactile paper grain. The masthead in huge custom curving psychedelic 1970s serif letters reads \"FIELD NOTES\". A coral circular seal in the upper right reads \"ISSUE 08\". On the left, six clearly legible cover lines in large contrasting editorial type, each phrase once: \"THE WILD ISSUE\", \"Gardens after dark\", \"An atlas of small wonders\", \"Art, ecology and imagination\", \"GROW SOMETHING UNEXPECTED\", \"AUTUMN 2026\". At bottom, spaced capitals read \"INDEPENDENT CULTURE JOURNAL\". Expressive hand-drawn display lettering, disciplined magazine grid, colorful sophisticated illustration, dramatic type scale. Exact listed wording, only listed text, no extra filler, no unreadable tiny text, no mockup surroundings."
}

Input

Prompt*

Additional Settings

Customize your input with more control.

Result

Idle

What would you like to do next?

Input

Prompt*

Image Size

Locked: editing one side keeps the current ratio. Tap the lock to free it.

Layout (optional)

Place objects by drawing regions on the output canvas.

Additional Settings

Customize your input with more control.

Result

Idle

What would you like to do next?

Download

{
  "images": [
    {
      "url": "https://v3b.fal.media/files/b/0aae6155/_oVsXxRC7V_xC2HpsubFO_YnEkZuA5.png",
      "content_type": "image/png",
      "file_name": "_oVsXxRC7V_xC2HpsubFO_YnEkZuA5.png",
      "file_size": null,
      "width": 1024,
      "height": 1360
    }
  ],
  "timings": {
    "prompt_expansion": 0.000006646005203947425,
    "inference": 3.8747413639939623,
    "safety_checker": 0.01818431400170084
  },
  "seed": 20261016,
  "has_nsfw_concepts": [
    false
  ],
  "prompt": "A finished independent botanical arts magazine cover, straight-on flat print design with all edges visible. Background deep forest green, coral and pale lemon inks. An intricate botanical cyanotype collage of giant fern fronds, seed pods and luminous cream wildflowers grows across the right half, tactile paper grain. The masthead in huge custom curving psychedelic 1970s serif letters reads \"FIELD NOTES\". A coral circular seal in the upper right reads \"ISSUE 08\". On the left, six clearly legible cover lines in large contrasting editorial type, each phrase once: \"THE WILD ISSUE\", \"Gardens after dark\", \"An atlas of small wonders\", \"Art, ecology and imagination\", \"GROW SOMETHING UNEXPECTED\", \"AUTUMN 2026\". At bottom, spaced capitals read \"INDEPENDENT CULTURE JOURNAL\". Expressive hand-drawn display lettering, disciplined magazine grid, colorful sophisticated illustration, dramatic type scale. Exact listed wording, only listed text, no extra filler, no unreadable tiny text, no mockup surroundings."
}