FLUX
Visit FLUX →About FLUX
FLUX is a family of AI image generation models developed by Black Forest Labs, the team behind the original Stable Diffusion research. The models are known for high visual quality, accurate text rendering, and a permissive licensing approach that supports commercial use. FLUX is used across professional advertising, fashion production, and creative industries globally.
The FLUX.2 suite, released January 15, 2026, introduced four variants: Pro, Flex, Dev, and Klein. Klein is the flagship consumer-facing model and achieves sub-second image generation on standard consumer hardware — a significant speed leap over the previous generation. At the same time, output quality and resolution ceiling have increased, with support for up to 4 megapixel images.
Multi-reference is a key new capability in FLUX.2: users can supply dozens of reference images in a single generation request, and the model synthesizes variations that are consistent with all supplied references simultaneously. This is particularly useful for brand-consistent advertising campaigns and fashion catalogs where visual coherence across a large batch of images is required.
Text rendering is substantially improved in FLUX.2. The model can accurately render specified text within generated images — product labels, signage, branded copy, and UI mockups — with higher accuracy than its predecessor and most competing models. This has accelerated adoption in advertising and marketing production pipelines.
FLUX models are available via API at api.bfl.ml for developers who want to integrate generation into their own applications. The models are also supported natively in ComfyUI for local workflow use and deployable through Replicate for cloud-based API access. Black Forest Labs offers a freemium tier with limited free generations and paid plans for higher volume and priority access.
FLUX is best for designers, photographers, advertisers, and developers who need fast, high-resolution image generation with accurate text rendering and the flexibility to run locally or via API.
- FLUX.2 [Klein]: sub-second generation on consumer hardware — fastest Flux model released
- Up to 4 megapixel resolution output without requiring a separate upscaling step
- Multi-reference: supply dozens of reference images in one generation for consistent variations
- Improved text rendering — accurate product labels, signage, and branded copy in images
- Available via API (api.bfl.ml), ComfyUI, and Replicate — flexible local and cloud deployment
- Free tier is limited — high-volume professional use requires a paid API plan
- FLUX.2 Pro and Flex variants are API-only, with no consumer-facing web UI from Black Forest Labs
- Multi-reference feature quality can degrade with conflicting or very dissimilar reference images
- Less beginner-friendly than web-based tools like Midjourney — API setup required for full access
Choose FLUX if…
- ✅ You want the best current image quality — FLUX.1 leads on photorealism and prompt accuracy
- ✅ You use FLUX through commercial APIs (Replicate, fal.ai) and want premium results
- ✅ You need precise text rendering within images — FLUX handles typography significantly better
- ✅ You want natural-looking human hands, faces, and anatomy without common AI artifacts
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