FLUX 3 Image 4K is 60.7 BFL credits, not 607: the math
One 4K FLUX 3 Image costs $0.607, which is 60.7 BFL credits at $0.01 each. 2K is 10 credits. Sume bills in dollars via usage.cost; FLUX 3 is not in its catalog.
One 4K FLUX 3 Image is $0.607 on BFL's list, and BFL says 1 credit equals $0.01 USD, so a 4K image uses 60.7 credits. The slug-style number 607 is the price in thousandths of a dollar, not credits. FLUX 3 Image is not in the Sume image catalog today; check GET /v1/images/models for the live list. The catalog lists FLUX.2 Pro and FLUX.2 Flex.
Credits per image
The credit column is writer-derived arithmetic: dollars divided by $0.01.
| Size | Price (USD) | Credits (USD / 0.01) |
|---|---|---|
| 768sq (768x768) | $0.041 | 4.1 |
| 1k (~1 MP) | $0.048 | 4.8 |
| 2k (~4 MP) | $0.100 | 10 |
| 4k (~16 MP) | $0.607 | 60.7 |
Batches multiply linearly
BFL states that batch requests cost the base price times the number of images. Ten 4K images are 10 x $0.607 = $6.07, or 60.7 x 10 = 607 credits. A hundred 4K images are $60.70.
The Sume line item instead
Sume does not meter in credits. Each response carries usage.cost, the USD amount billed to your wallet, and the /endpoints pricing lines for each model already include the Sume margin. In the Sume repo the static list rate for google/nano-banana-2 is $0.08 per image, and billed price is list x 1.25 = $0.10. Read the live pricing array from GET /v1/images/models/{id}/endpoints before you budget; that array is authoritative.
| Route | Per-image figure | Source |
|---|---|---|
| FLUX 3 Image 4k on BFL | $0.607 (60.7 credits) | BFL pricing docs |
| Gemini 3.1 Flash Image 4K on Google | $0.151 | Google pricing page |
| nano-banana-2 on Sume | $0.08 list x 1.25 = $0.10 | Sume repo static list; confirm in /endpoints |
Read the gap carefully
Against the Sume nano-banana-2 line, $0.607 / $0.10 = 6.07, so one FLUX 3 4K image costs about six of them. This is a price comparison only, not a quality claim. The two are different models, and the Sume docs do not state that one matches the other.
Sources
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