Flux
Stable Diffusion
| Feature | Flux | Stable Diffusion |
|---|---|---|
| Pricing | Free / from $0.05/mo | Free / from $0.01/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.6 / 5 | 4.5 / 5 |
| Best For | ai-artists, developers, content-creators, researchers | developers, artists, researchers, privacy-conscious-creators |
| Founded | 2024 | 2022 |
| Text To Image | ✓ | ✓ |
| High Resolution | ✓ | ✗ |
| Text Rendering | ✓ | ✗ |
| Local Deployment | ✓ | ✓ |
| Api | ✓ | ✓ |
| Controlnet Support | ✓ | ✗ |
| Fine Tuning | ✓ | ✗ |
| Img2img | ✗ | ✓ |
| Inpainting | ✗ | ✓ |
| Controlnet | ✗ | ✓ |
| Lora Models | ✗ | ✓ |
✓ Flux Pros
- Best open-source image quality available
- Excellent text rendering in generated images
- Multiple model sizes (Schnell, Dev, Pro)
- Can run locally on consumer hardware
✗ Flux Cons
- Pro model requires API payment
- Fewer community tools than Stable Diffusion
- High VRAM requirements for best quality
✓ Stable Diffusion Pros
- Completely free to run locally
- Full creative control with no content restrictions
- Massive community of models, LoRAs, and extensions
- Runs offline on consumer GPUs
✗ Stable Diffusion Cons
- Requires powerful GPU for local use
- Complex setup with ComfyUI or Automatic1111
- Base model quality below Midjourney without tuning
The Verdict
Flux is built for ai artists and developers, with a focus on text-to-image and high-resolution. Stable Diffusion targets developers and artists and leads with text-to-image and img2img.
Both tools come in at similar price points ($0.05/mo for Flux, $0.01/mo for Stable Diffusion), so pricing won't make the decision for you.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Both tools are a solid fit for developers, researchers — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.