FLUX image and video models on a pay-per-image API, plus open weights under separate non-commercial and self-hosted commercial licences.
Engineering teams that need image generation as a metered dependency rather than a seat-based app: pricing is pay as you go with no subscriptions or seat fees, every model has a published per-image or per-megapixel rate, and the rate is the same through the API and the Playground. Output rights are stated in the developer terms - Black Forest Labs claims no ownership in your output, and you and your end users may use outputs for personal or commercial purposes. Teams that need the model on their own infrastructure have a published route through tiered open-weights licences that include fine-tuning and LoRA rights.
Do not assume API data is private: the FLUX API Service Terms grant the company a fully paid, royalty-free, perpetual, irrevocable, worldwide, sublicensable licence over your inputs and outputs and state plainly that it may use them to train and improve its AI models, while the opt-out that does exist sits in the website and FLUX Terms of Service, works by emailing legal@blackforestlabs.ai, and operates prospectively only. The downloadable FLUX [dev] weights are non-commercial: the licence defines non-commercial purpose to exclude revenue-generating activity, direct end-user interactions and training for commercial use, so production self-hosting needs the separate self-hosted commercial licence, whose price is not published. There is no free tier and no indemnity to customers.
Pros
Cons
The Developer Terms state the company claims no ownership rights in your output and that you and your end users may use outputs for personal or commercial purposes. The non-commercial weights licence says the same about outputs while restricting the model itself: non-commercial purpose excludes revenue-generating activity and direct end-user interactions. Outputs may not be used to train a model competitive with FLUX [dev].
The FLUX API Service Terms say the company may use inputs and outputs to train and improve its AI models, under a perpetual, irrevocable, sublicensable licence, and publish no opt-out. The website and FLUX Terms of Service do publish one: email legal@blackforestlabs.ai. It ends future training use only - content already used, or retained for safety, security or legal compliance, is excluded.
It does not name its training datasets. What it does publish is process and contact: datasets are filtered for unsafe content before training, with partners including the Internet Watch Foundation, and a dedicated point of contact exists for rightsholders raising copyright-protected content used in training the FLUX models. No indemnity is offered to customers; the licence requires the customer to indemnify the company.
Yes, but the licence depends on the use. FLUX [dev] weights are downloadable under the non-commercial licence, and the API terms confirm API access alone grants no right to self-host. Commercial self-hosting runs through the open-weights ladder: Builder at 10,000 images a month, Platform and Professional at 100,000, each with domain and licensed-user caps, plus fine-tuning and LoRA rights. Prices are not published.
Facts sourced from the vendor’s own site, last verified 2026-10-24.
The Weekly Source
One email a week. New listings, repriced tools, and the ones we would skip - including this one if its pricing changes.
