Flux Dev · Black Forest Labs
Flux Dev is Black Forest Labs' balanced version. Quality close to Pro at a lower cost. The ideal balance for daily production.
About Flux Dev
Flux Dev is Black Forest Labs' balanced version. Quality close to Pro at a lower cost. The ideal balance for daily production.
Where it shines: High quality · Good composition · Text handling.
How to use Flux Dev
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1
Describe the image
Type what you want in the box above — or upload the file if the tool asks for one.
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2
Generate
Click the main button. Wait 2-30 seconds depending on the model and input size.
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3
Download or share
Download the result or share the direct link. No watermark, ready to use.
Frequently asked questions
How much does it cost to use Flux Dev?
Flux Dev is one of the free models in the catalog, each use discounts 50 tokens from your pool, but open models like Flux Dev don’t cost us, so the rate-limit is generous. A free account comes with 500 initial tokens and 25 more every day — you usually don’t get to touch the card.
Is there a usage limit for Flux Dev?
There is no fixed monthly fee for Flux Dev on the free account — the actual limit is the rate per minute/hour, not per month. Anonymous are limited by IP; with account you can do much more volume, if you reach 500+25 tokens and need more, a Pro plan at $9/month covers it.
What makes Flux Dev special?
Black Forest Labs is the lab behind Flux — the open and higher quality successor to Stable Diffusion, with specific strengths in high quality, good composition and text handling.
How long does Flux Dev take to generate an image?
Flux Dev has a balanced speed: 10-25 seconds per generation, the chosen resolution changes little in time; what influences most is the model itself.
How do I use Flux Dev in ia.gratis?
You can use Flux Dev from /image/ by choosing Flux Dev in the model picker, or via the REST API by passing `model=flux-dev` in the JSON. Quick summary: better quality than Schnell. ~10s. The internal model identifier is `flux-dev` — useful when integrating via API.