FLUX.2 [pro] is cheaper: $0.03 vs $0.065 per image at 1024×1024 on each model's cheapest path — 2.2× less. For 1,000 images (1024×1024): $30.00 vs $65.00. Stamped 2026-09-07. Stable Diffusion 3.5 Large's premium may buy quality — this index measures cost only.
FLUX.2 [pro] vs Stable Diffusion 3.5 Large: price
Stable Diffusion 3.5 Large
$0.065 per image at 1024×1024
Cheapest: $0.065 via Stability AI (estimated)
How much does FLUX.2 [pro] cost?
| Provider | Price /image (1024²) | Provider's own unit | vs official | Status | Source |
|---|---|---|---|---|---|
| Black Forest Labscheapest | $0.03 | $0.03 first megapixel + $0.015 each additional MPUSD per megapixel | — | Verified2026-09-07 | source |
| fal.ai | $0.03 | $0.03 per imageUSD per image | 0% | Derived2026-09-07 | source |
How these numbers were computed
- fal.ai: fal.ai per-image rate captured in the FairStack operational cost audit, 2026-03-23 (price-audit-full.json); endpoint flux-2-pro-t2i-fal.
How much does Stable Diffusion 3.5 Large cost?
| Provider | Price /image (1024²) | Provider's own unit | vs official | Status | Source |
|---|---|---|---|---|---|
| Stability AIcheapest | $0.065 | 6.5 credits per image ($0.01/credit)credits | — | Estimated2026-09-07 | source |
| fal.ai | $0.065 | $0.065 per megapixelUSD per megapixel (1024×1024 ≈ 1 MP) | 0% | Derived2026-09-07 | source |
How these numbers were computed
- Stability AI: 6.5 credits × $0.01/credit = $0.065 per image.
- fal.ai: fal.ai per-megapixel rate captured in the FairStack operational cost audit, 2026-03-23 (price-audit-full.json) (listed $0.065/MP); endpoint sd-3.5-large. 1024×1024 bills as 1 MP.
Frequently asked
Is FLUX.2 [pro] cheaper than Stable Diffusion 3.5 Large?
FLUX.2 [pro] is cheaper: $0.03 vs $0.065 per image at 1024×1024 on each model's cheapest path — 2.2× less. For 1,000 images (1024×1024): $30.00 vs $65.00. Stamped 2026-09-07. Stable Diffusion 3.5 Large's premium may buy quality — this index measures cost only.
What does 1,000 images (1024×1024) cost on each?
FLUX.2 [pro]: $30.00 (cheapest path). Stable Diffusion 3.5 Large: $65.00. Both computed from the normalized canonical rate; real invoices vary with resolution, minimum charges, and tiers.
Which is better quality?
This index measures cost, not quality. For quality benchmarks, see Artificial Analysis — a image model that costs more is not automatically better, and vice versa.
Prices normalized to per image at 1024×1024; per-clip, credit, and tier billing converted per themethodology. Quality comparison is out of scope — seeArtificial Analysis.