Black Forest Labs
Black Forest Labs builds the Flux family of image generation models — Flux 1.1 Pro, Flux 2, and Flux Schnell — setting new benchmarks for prompt adherence and text rendering.
16 models from Black Forest Labs on Railwail
Access every Black Forest Labs model through Railwail's OpenAI-compatible API.
16 models available
FLUX 1.1 Pro
Black Forest Labs' flagship text-to-image model. Faster generation than FLUX.1 Pro at higher prompt adherence, with strong photorealism and reliable spatial composition. Runs as a hosted Replicate model.
FLUX 1.1 Pro Ultra
FLUX 1.1 Pro in Ultra mode by Black Forest Labs. Generates up to 4 megapixel images with a raw mode for less processed, more natural-looking photography. Best FLUX option when output resolution and fine detail matter.
Professional Headshot (FLUX Kontext)
Turns any single selfie into a clean professional headshot using FLUX Kontext image editing. Keeps the person's face while swapping to business attire, a studio background and even lighting. Aimed at LinkedIn-style profile photos.
FLUX PuLID
PuLID identity customization running on FLUX.1-dev. Inserts a face from one reference photo into prompt-driven scenes using contrastive alignment, giving higher likeness and detail than SDXL-era ID adapters. Good for realistic avatars and character portraits.
FLUX.1 [dev]
The open-weight 12B rectified-flow transformer from Black Forest Labs. Close to FLUX Pro quality with a guidance-distilled checkpoint released under a non-commercial license. The most widely fine-tuned base in the FLUX family.
FLUX.1 [schnell]
The fastest FLUX model from Black Forest Labs, distilled to produce images in 1 to 4 steps. Apache 2.0 licensed for commercial use. Built for high-volume generation and real-time previews.
FLUX.1 [Schnell]
Black Forest Labs' fastest open-weights image model. Apache-2.0 licensed, ~1-4 step inference.
FLUX.1 Canny
FLUX structural control via Canny edge maps. Preserve composition while restyling.
FLUX.1 Canny [dev]
Open-weight edge-guided FLUX model from Black Forest Labs. Extracts Canny edges from a control image and regenerates it from your prompt while holding the original composition and outlines, so you can restyle a scene without changing its structure.
FLUX.1 Depth
FLUX structural control via depth maps. Keep 3D scene layout while changing style/content.
FLUX.1 Depth [dev]
Open-weight depth-guided FLUX model from Black Forest Labs. Derives a depth map from the control image and regenerates from your prompt while preserving 3D spatial layout, useful for re-texturing rooms, products, or scenes without moving objects.
FLUX.1 Fill
Black Forest Labs' inpainting/outpainting model for FLUX. Fill masked regions with prompt-guided content.
FLUX.1 Fill [dev]
Black Forest Labs' open-weight inpainting and outpainting model, guidance-distilled from FLUX.1 Fill [pro]. You supply an image plus a mask and a prompt; it fills the masked region or extends the canvas with prompt-guided content that matches lighting and texture.
FLUX.1 Kontext [dev]
Open-weight version of FLUX.1 Kontext by Black Forest Labs. Instruction-based editing: pass an input image and a plain text edit ('change the jacket to red', 'remove the person on the left') and it applies the change while keeping the rest of the scene and identity consistent.
FLUX.1 Redux
FLUX image-variation adapter. Generate variations and remixes from a reference image.
FLUX.1-dev Inpainting
FLUX.1-dev inpainting wrapper that fills masked parts of an image from a prompt. Useful when you want FLUX-quality fills with a simple image plus mask plus prompt interface and adjustable mask strength.
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