black-forest-labs
FLUX (Black Forest Labs)
High-resolution German-built image generator
DSGVO: conformEU-AI-Act: limitedFree tier
AI tool comparison
FLUX (Black Forest Labs) vs. Stable Diffusion (Stability AI)
A practical comparison of FLUX (Black Forest Labs) and Stable Diffusion (Stability AI) across pricing, GDPR, EU AI Act risk, and workflow fit.
stability-ai
Stable Diffusion (Stability AI)
Open-source image model — self-host or via API
DSGVO: conformEU-AI-Act: limitedFree tier
Side-by-side comparison
| Factor | FLUX (Black Forest Labs) | Stable Diffusion (Stability AI) |
|---|---|---|
| Pricing | Free tier | Free tier |
| GDPR | conform | conform |
| EU AI Act | limited | limited |
| Data residency | eu | on_prem |
| Use cases | Image, Create content, Brainstorm | Image, Create content, Build & code, Brainstorm |
| Data quality | — | — |
| Updated | 6/15/2026 | 6/15/2026 |
Choose FLUX (Black Forest Labs) when
FLUX.1 from former Stability researchers in Freiburg. State-of-the-art quality. Open weights for some variants, Pro/Ultra via API.
Choose Stable Diffusion (Stability AI) when
SD 3.5, SDXL, FLUX — open weights for local hosting. Stability offers API service. ComfyUI/Automatic1111 as OSS UIs.
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