AI image models compared
Flux Dev vs Flux Pro 1.1
Same family, and the gap is narrower than the price difference suggests. Flux Dev is the full undistilled model and handles most prompts well. Flux Pro 1.1 is the commercial flagship, and where it pulls ahead is specifically fine detail under load: a busy frame with many small elements, distant faces, lettering on signage, repeating pattern. Those are the things Dev starts to soften and Pro holds.
For a single subject on a clean background you will struggle to justify the extra credits. For a crowded street scene at dusk, you will see them. Draft on Dev, and move to Pro only for the frames that are actually detail-dense.
Choose Flux Dev if
- The composition is simple or single-subject
- You are still iterating on the prompt
- Volume matters more than the last few percent
Choose Flux Pro 1.1 if
- The frame is busy and detail has to survive
- The render is final — print, client or marketplace listing
- Dev is going soft in the areas you care about
Side by side
| Flux Dev | Flux Pro 1.1 | |
|---|---|---|
| Price | 210 credits | 336 credits |
| Roughly | about 19c | about 31c |
| 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 | 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 DevOpen Flux Pro 1.1
New accounts start with free credits, and credits never expire. Read more about Flux Dev or Flux Pro 1.1, or see every model on comfyarts.