Stable Diffusion vs Flux
Detailed comparison of Stable Diffusion and Flux — pricing, features, ratings, and which to choose.
S
Stable Diffusion
Stability AI
Open-source image generation you can run locally
Free tier availableDetails
F
Flux
Black Forest Labs
Next-gen open-source image model by Black Forest Labs
Free tier availableDetails
Side-by-Side Comparison
Feature
S
Stable DiffusionF
FluxOverall Rating
4.3
4.4
Starting Price
Free
Free
Free Tier
API Access
Open Source
Platforms
desktopapi
apidesktop
Base Model
SD 3.5 Large / SDXL
FLUX.2 (max / klein / Kontext)
Ease of Use
3.2
3.5
Value
5.0
4.8
Quality
4.2
4.6
Which is Better For...
communityStable Diffusion
photorealismFlux
customizationStable Diffusion
qualityFlux
ecosystemStable Diffusion
Stable Diffusion
Pros
- Completely free (self-hosted)
- Massive community and model ecosystem
- Full control and customization
- No content restrictions
Cons
- Requires GPU for local use
- Complex setup for beginners
- Quality varies by model/settings
- Less consistent than Midjourney
Flux
Pros
- Excellent image quality (rivals Midjourney)
- Open-source models available
- Great text rendering
- Multiple model tiers for different needs
Cons
- No easy consumer interface
- Requires technical setup
- Pro model is API-only
- Relatively new ecosystem
Verdict
Both are open-source image generators you can run locally for free. Stable Diffusion has a larger community with more models and LoRAs, while Flux produces superior photorealistic results out of the box. SD for its ecosystem, Flux for raw quality.