FLUX 3 Image Klein API price, and what each image really costs
Black Forest Labs. Price checked 7 Nov 2026; unchanged since we started tracking it. Source: the official pricing page. bfl/flux-3-image-klein
Price per image, and the real cost per image that works
Some images don't work first time and get redone, and you pay for those tries too. The last columns show the real cost per image that works, depending on how many work first time. The rates are examples, not measurements.
| Real cost per image that works, when this many work first time | ||||
|---|---|---|---|---|
| Option | Per image | 8 in 10 | 6 in 10 | 4 in 10 |
| 768x768 | $0.0080 | $0.0100 | $0.0133 | $0.0200 |
| 1K | $0.0090 | $0.0112 | $0.0150 | $0.0225 |
| 1.5K | $0.0110 | $0.0137 | $0.0183 | $0.0275 |
| 2K | $0.0140 | $0.0175 | $0.0233 | $0.0350 |
| 4K | $0.0360 | $0.0450 | $0.0600 | $0.0900 |
Questions
How much does the FLUX 3 Image Klein API cost?
From $0.0080 per image (768x768), as listed on Black Forest Labs's own pricing page. Price checked 7 Nov 2026; unchanged since we started tracking it. Prices change often, so check the source before you set your own prices.
What does an image that works really cost with FLUX 3 Image Klein?
Divide the cost per image by the share that work first time. At $0.0080 per image and 6 in 10 working first time, each image that works costs $0.0133, because the redone ones were paid for too.