Flux
Black Forest Labs
FreemiumStable Diffusion
Stability AI
FreeFlux vs Stable Diffusion: Full Comparison (2026)
Flux is flux 1.1 pro ultra - state-of-the-art image generation by black forest labs. Stable Diffusion is open-source image generation you can run locally. Use the breakdown below to find the right fit for your needs.
This page presents factual information sourced from publicly available vendor documentation and product pages. AIHub does not endorse either product. The right tool depends on your specific use case, team, and requirements — we recommend evaluating both tools directly before making a decision.
Side-by-Side Overview
Pricing Model
Flux
FreemiumStable Diffusion
FreeAPI Access
Flux
Not availableStable Diffusion
AvailablePlatforms
Flux
WebStable Diffusion
Local (Windows/Mac/Linux), DreamStudio (web), Automatic1111 WebUI, ComfyUI, Replicate API, HuggingFace SpacesIntegrations
Flux
—Stable Diffusion
6 integrationsVendor
Flux
Black Forest LabsStable Diffusion
Stability AICategory
Flux
Image GenerationStable Diffusion
Image GenerationLaunch
Flux
—Stable Diffusion
Aug 22, 2022Models
Flux
FLUX 1.1 Pro Ultra (4MP), FLUX 1.1 ProStable Diffusion
SD 3.5 Large (8B params), SD 3.5 Large Turbo| Feature | Flux | Stable Diffusion |
|---|---|---|
| Pricing Model | Freemium | Free |
| API Access | Not available | Available |
| Platforms | Web | Local (Windows/Mac/Linux), DreamStudio (web), Automatic1111 WebUI, ComfyUI, Replicate API, HuggingFace Spaces |
| Integrations | — | 6 integrations |
| Vendor | Black Forest Labs | Stability AI |
| Category | Image Generation | Image Generation |
| Launch | — | Aug 22, 2022 |
| Models | FLUX 1.1 Pro Ultra (4MP), FLUX 1.1 Pro | SD 3.5 Large (8B params), SD 3.5 Large Turbo |
About Flux
Flux is a family of text-to-image models by Black Forest Labs (founded by Stable Diffusion creators). FLUX 1.1 Pro Ultra (4MP resolution) and FLUX.1 Pro set the standard for photorealism and prompt accuracy. [schnell] open-weights variant runs locally.
Designed For
- Photorealistic generation
- Commercial photography
- Fine-tuning
- API integration
About Stable Diffusion
Stable Diffusion is an open-source latent diffusion model for image generation. Can be run locally on consumer hardware, with a massive ecosystem of fine-tuned models and ControlNet extensions.
Designed For
- Local image generation
- Custom model fine-tuning
- Batch generation
- Research
Strengths & Limitations
Flux
Strengths
- FLUX 1.1 Pro Ultra: 4MP native resolution
- Best prompt accuracy of any model
- Fast variants available
- Open weights [schnell]
- Video generation (FLUX Video, 2025)
Limitations
- Pro version costs credits
- Ecosystem still growing vs Midjourney
Stable Diffusion
Strengths
- Free and open-source
- Runs locally
- Huge model ecosystem
Limitations
- Technical setup required
- Hardware requirements
- Variable quality
Frequently Asked Questions
What is the difference between Flux and Stable Diffusion?
Flux is flux 1.1 pro ultra - state-of-the-art image generation by black forest labs, while Stable Diffusion is open-source image generation you can run locally. Flux is designed for Image Generation; Stable Diffusion is designed for Developers, Artists wanting control. The right fit depends on your specific requirements.
How do the pricing models compare?
Flux is available under a Freemium model. Stable Diffusion is available under a Free model. Stable Diffusion's entry tier starts at Free. Always verify pricing on each vendor's official website as it may change.
What integrations does each tool support?
Flux integrates with various tools. Stable Diffusion integrates with ComfyUI, A1111 (1000+ extensions), Replicate, Stability API. Check each vendor's documentation for the full and current list.
How do I choose between Flux and Stable Diffusion?
Consider your team's technical requirements, budget, existing tooling, and use case before deciding. We recommend signing up for free trials or demos of both tools where available, and consulting each vendor's documentation. AIHub provides this comparison for informational purposes only.
Feature Snapshot
Explore Further
Flux full detailsStable Diffusion full detailsFlux official siteStable Diffusion official siteRelated Comparisons
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Data sourced from public vendor documentation. Pricing, features, and availability may change. Always verify on official vendor websites before making purchasing decisions. AIHub is not affiliated with any of the listed vendors.