Black Forest Labs

Black Forest Labs is an AI research lab that builds the FLUX family of multimodal models for image, video, audio, and action-prediction generation. Its models are accessible through a pay-as-you-go API, an in-browser playground, and open weights for self-hosted deployment. It serves developers, early-stage teams, product teams, agencies, and larger organizations that build on FLUX.

A user can start in the playground to test prompts and models in a browser with no code, integrate the FLUX API into a product for production workloads, or download open weights to deploy, fine-tune, and customize models on private infrastructure. Generation can start from text, an image, or keyframes, and FLUX 3 produces image, video, or audio output, including up to 20-second video clips in a single generation.

FLUX 3 Action is a 7-billion-parameter open-weight world action model that turns visual intelligence into action for a robot, simulator, or game, and placed first on the RoboLab benchmark among open policies. The API is built to handle production workloads at any scale, with a pricing calculator that charges per image or video generated. Licensed deployments can add fine-tuning and LoRA rights, and larger organizations can combine API and open-weights pricing for their products.

Black Forest Labs prices its API on a pay-as-you-go basis, such as $0.048 per image at default settings, with no subscriptions or seat fees. Open-weights licensing adds tiers for developers, product teams, agencies, and enterprises, each with a monthly image allowance, such as 10K images a month on the Builder tier, domain and user limits, and fine-tuning and LoRA rights; Professional, Enterprise, and Synthetic Data tiers require contacting sales for pricing.

Use cases

• Building products at production scale through the FLUX API
• Running FLUX on private infrastructure for full customization
• Driving robot, simulator or game control with FLUX 3 Action
• Using FLUX outputs as training data for other AI models