Text-to-image · Black Forest Labs

FLUX in a visual AI workflow

Run Black Forest Labs' FLUX in a visual AI workflow — sharp, prompt-faithful text-to-image with a full editing family, BYOK at provider prices.

A lone astronaut adrift before a dying star, cinematic sci-fi key art, deep shadows and cold blue rim light, dramatic negative space, title treatment at the base.
A lone astronaut adrift before a dying star, cinematic sci-fi key art, deep shadows and cold blue rim light, dramatic negative space, title treatment at the base.
Neon-drenched cyberpunk detective in the rain, noir movie poster, magenta and cyan reflections on wet asphalt, towering city, moody backlit silhouette.
Neon-drenched cyberpunk detective in the rain, noir movie poster, magenta and cyan reflections on wet asphalt, towering city, moody backlit silhouette.
Matte-black wireless earbuds floating above a seamless studio backdrop, clean commercial product photography, soft key light, subtle cyan accent glow, shallow depth of field.
Matte-black wireless earbuds floating above a seamless studio backdrop, clean commercial product photography, soft key light, subtle cyan accent glow, shallow depth of field.

FLUX, from Black Forest Labs, is a text-to-image family prized for prompt fidelity, clean typography, and a coherent look across a scene. It spans fast (schnell), balanced (dev), and high-fidelity (pro / ultra) tiers, plus Kontext editing and fill/redux variants for image-to-image work.

In NodeTool every FLUX variant is a node. Generate with schnell while you iterate, switch to pro for the final, then chain into inpaint, upscale, or a compositing step — all in one graph you can re-run and share. Because the interface is shared, swapping FLUX for Seedream or Imagen is a single node change.

FLUX is BYOK: pick a provider from the generated table, use your key, pay list price. NodeTool adds no markup.

Modality
Text-to-image and image-to-image
Tiers
Schnell, dev, pro / ultra, Kontext
Resolution
Up to ~2K, wide aspect range
Strengths
Prompt fidelity, legible text

Where to run FLUX

NodeTool is bring-your-own-key: you call FLUX through a provider you already have access to and pay their list price — no credits, no markup. These providers serve FLUX today.

ProviderBYOK env var
fal.aiFAL_API_KEY
KieKIE_API_KEY
ReplicateREPLICATE_API_TOKEN
Together AITOGETHER_API_KEY

Use FLUX in a ready-made workflow

Drop FLUX into a template and you have a repeatable pipeline — prompt in, asset out — that you can edit, re-run, and share as a single file. Open it in NodeTool and swap in your own key.

Open the template

More FLUX prompts

Dreamy synthwave sunset over an endless chrome grid, square album cover, gradient sky from cyan to magenta, retro sun, bold centered typography.
Dreamy synthwave sunset over an endless chrome grid, square album cover, gradient sky from cyan to magenta, retro sun, bold centered typography.
A lone astronaut adrift before a dying star, cinematic sci-fi key art, deep shadows and cold blue rim light.
A lone astronaut adrift before a dying star, cinematic sci-fi key art, deep shadows and cold blue rim light.

Frequently asked

Which FLUX version should I use?
Schnell for fast iteration, dev for a balance of speed and quality, pro or ultra for final fidelity, and Kontext for prompt-based image editing. Each is a separate node in NodeTool.
Can FLUX edit an existing image?
Yes. FLUX Kontext and the fill/redux variants do image-to-image and inpainting, available as nodes you can chain after a generation step.
What does FLUX cost in NodeTool?
You pay the provider that serves the FLUX variant at their list price — NodeTool is bring-your-own-key with no per-image fee.

Run FLUX your way.

Download NodeTool Studio and build across image, video, audio, and text with your own keys.

Download NodeTool