AI image models compared
Flux Pro 1.1 vs Flux Pro Ultra
Not a quality-versus-quality comparison so much as a size one. Flux Pro Ultra generates up to roughly four megapixels natively; Flux Pro 1.1 tops out at 2,048 a side. Generated detail is real detail, whereas upscaling a Pro render afterwards invents the pixels in between.
At screen size the two look very similar and Ultra is the more expensive. The difference appears when the image is printed, shown large, or cropped into hard. If none of those apply, Pro is the sensible tier.
Choose Flux Pro 1.1 if
- The output is viewed on a screen at normal size
- You want flagship quality without the resolution premium
Choose Flux Pro Ultra if
- It is going to print or a large display
- You will crop into it heavily
- Native resolution matters more than credits
Side by side
| Flux Pro 1.1 | Flux Pro Ultra | |
|---|---|---|
| Price | 336 credits | 504 credits |
| Roughly | about 31c | about 46c |
| Provider | fal | fal |
| Aspect ratios | 13 — 1:1, 4:3, 16:9, 3:2, 19.5:9, 20:9, 2:1, 3:4, 9:16, 2:3, 9:19.5, 9:20, 1:2 | 13 — 1:1, 4:3, 16:9, 3:2, 19.5:9, 20:9, 2:1, 3:4, 9:16, 2:3, 9:19.5, 9:20, 1:2 |
| Resolutions | 1k, 2k | — |
| LoRA support | No | No |
| Modes | generate | generate |
Specifications are measured against each endpoint, not copied from a vendor page. Cash figures are approximate at starter-pack rates — see pricing. Highlighted rows are where the two models differ.
Try either one
Open Flux Pro 1.1Open Flux Pro Ultra
New accounts start with free credits, and credits never expire. Read more about Flux Pro 1.1 or Flux Pro Ultra, or see every model on comfyarts.