Flux.1
by Flux
Previous-generation FLUX models with simple pay-per-image pricing
About
Flux.1 is the earlier generation of Black Forest Labs’ image model family, covering text-to-image generation and image editing workflows. In BFL’s documentation, it is explicitly labeled as the previous-generation set of models, with FLUX.2 recommended for new projects. Flux.1 variants still appear in the pricing and documentation ecosystem, including FLUX.1 [dev], FLUX.1 [pro], FLUX1.1 [pro], and Flux.1 Fill [pro]. The main value proposition is straightforward production use: developers can call the models through the BFL API, and creatives can use the web playground for interactive generation and editing. The models are positioned for high-quality output with simple pay-per-image billing rather than subscription tiers, and the pricing page states that the same pricing applies across API and Playground usage. Compared with newer FLUX.2 models, Flux.1 is less central in the current product lineup, but it remains useful when a workflow depends on the older model family or specific variant behavior. The documentation highlights capabilities such as single-image editing, high-quality text-to-image generation, and raw-style outputs aimed at more authentic photography aesthetics. Black Forest Labs also frames its open-weight and commercial offerings around flexible deployment, but Flux.1 itself is primarily accessed as a hosted model family via BFL services.
What you can do with it
- Generate product mockups and advertising visuals from text prompts
- Edit existing images with targeted text-driven inpainting
- Integrate image generation into a website or app via API
- Create photorealistic concept art for rapid design exploration
- Produce batch outputs for A/B testing creative variants
Pricing
FLUX.1 [dev] — $0.025/image FLUX.1 [pro] — $0.05/image FLUX1.1 [pro] — $0.04/image FLUX.1 Fill [pro] — $0.05/image
How to access
Web playground and API via Black Forest Labs; open public site for pricing/docs, account required for API/dashboard use, open signup implied rather than invite-only
Access via the BFL web playground and API. The site offers API, pricing, documentation, and dashboard entry points; no login is required just to view the public pricing pages, but API usage and dashboard features require an account.
Tips for getting the best results
Use the BFL Playground for quick prompt iteration, then move to the API once prompts are stable. For editing tasks, choose a variant intended for image editing rather than plain text-to-image generation. If you want the best current quality and multi-reference behavior, BFL recommends FLUX.2 instead of Flux.1. For batch generation, remember that batch pricing multiplies the base image cost by the number of images.
Known limitations
Flux.1 is a previous-generation family, so BFL now recommends FLUX.2 for new projects. The available sources do not confirm multi-reference support for Flux.1, and the newer docs emphasize that FLUX.2 offers superior quality, more control, and up to 4MP output. Pricing is per image, so costs scale directly with volume.
Model / Technology
Diffusion-based image model family
Commercial use
Black Forest Labs provides commercial terms through its website and licensing pages for FLUX models, but the pricing and documentation results here do not spell out Flux.1-specific commercial-use thresholds or attribution requirements. The model family is marketed for production use and API deployment.
Training data
The provided sources do not specify the exact training dataset for Flux.1. Black Forest Labs describes FLUX models as frontier image-generation systems, but these results do not confirm whether Flux.1 was trained on licensed data, open datasets, web-scale scraped data, or proprietary corpora.