FLUX.1 [dev]
FLUX.1 [dev] trades speed for fidelity, using more inference steps than schnell to produce sharper detail and better prompt adherence.
Input
FormPrompt*
Aspect ratio
Number of images
Result
Preview![a cowboy on a ridge at magic hour, dust, one tree, octane 3D render, subsurface, chrome accents, no text, no watermark, generated with FLUX.1 [dev] on Knowlify](/_next/image?url=%2Fgenerators%2Fflux-dev.webp&w=3840&q=75)
Generated with FLUX.1 [dev]
$0.025 per megapixel·~8s
What FLUX.1 [dev] is for
FLUX.1 [dev] from Black Forest Labs is a text-to-image model. You describe the frame and it returns a still image in about 8 seconds, billed at $0.025 per megapixel. There is one mode on this page: text to image.
FLUX.1 [dev] is billed in Knowlify credits at the compute cost ($0.025 per megapixel). A typical run is about 8 seconds.
Pick FLUX.1 [dev] for text to image at $0.025 per megapixel and ~8s. Compare it with Flux Kontext, Nano Banana Pro on the related cards below if you need a different look, speed, or input type.
How to use FLUX.1 [dev]
- 1. Write a still prompt for FLUX.1 [dev]. Be specific about subject, style, and lens.
- 2. Run it. The prompt opens in the Knowlify studio, where FLUX.1 [dev] generates.
- 3. Stay in the studio to turn a document or a longer prompt into a narrated video.
What you need
- A prompt that names the subject, style, and framing.
- Aspect ratio (Square (1:1), Landscape (16:9), Portrait (9:16), Landscape (4:3), and more).
Example prompt
a cowboy on a ridge at magic hour, dust, one tree, octane 3D render, subsurface, chrome accents, no text, no watermark
Frequently asked questions
How do I run FLUX.1 [dev]?
Run FLUX.1 [dev] on Knowlify at /generate/flux-dev. Write the prompt on this page and it opens in the studio, where FLUX.1 [dev] generates a still image. The same studio also turns documents into full narrated videos.
Where can I use FLUX.1 [dev] online?
On Knowlify (Black Forest Labs's model, knowlify.com/generate/flux-dev). You do not need a separate playground. FLUX.1 [dev] runs in the studio next to document-to-video.
Can I make a longer video with FLUX.1 [dev]?
FLUX.1 [dev] itself produces a still image. On Knowlify you can take that output, or skip it and upload a document, and generate a full narrated video with a script you can edit.
What do I need to run FLUX.1 [dev]?
A text prompt is enough. FLUX.1 [dev] generates the image from that description in the studio.
How long does FLUX.1 [dev] take?
Plan on about 8 seconds for a typical run, then whatever queue time the studio has. Video models sit at the high end of that range.
When should I use FLUX.1 [dev] instead of schnell?
Use dev when you need the final asset rather than a draft. It follows complex prompts more faithfully and resolves fine detail better, at roughly eight times the cost per megapixel.
Can I use FLUX.1 [dev] output commercially?
FLUX.1 [dev] ships under a non-commercial license from Black Forest Labs, with commercial use requiring a separate license. Check current terms before using output in a commercial project.