FLUX.3 Klein API pricing
FLUX.3 Klein by Black Forest Labs costs $0.009 per image (1K image) at BFL API, the one provider the board counts, as of 18 Oct 2026.
Also listed as FLUX.3 Klein (1 provider counted).
FLUX.3 Klein price by provider
FLUX.3 Klein price per variant
| Variant | Median | Range | Providers counted |
|---|---|---|---|
| 1K | $0.009/image | — | 1 of 2 |
About FLUX.3 Klein
Black Forest Labs FLUX.3 Klein text-to-image on fal (blackforestlabs/flux-3/klein/text-to-image), released 2026-10-15. Native 4K. image_size is square_hd (the default), square, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9, or a custom width and height. Each side is 256 to 4096, a multiple of 16, and the area is at most 16,777,216 pixels. There is no auto preset and no resolution enum. bounding_boxes accepts up to 32 boxes. Box edges are fractions of the image, with (0, 0) at the top-left, and the prompt names a box by its label, for example <fox>. num_images is 1 to 4, default 1. output_format is jpeg, png (the default), or webp. enable_prompt_expansion and enable_safety_checker default to true. There is no negative prompt and no image input. Planned per-image prices, the same for generation and editing: 768×768 $0.008, 1K $0.009, 1.5K $0.011, 2K $0.014, 4K $0.036. Confirmed on the fal model page and the Black Forest Labs pricing page on 2026-10-16.
FLUX.3 Klein pricing questions
- How much does FLUX.3 Klein cost per image?
- The median is $0.009 per image across 1 counted provider, for a 1K image, as of 18 Oct 2026.
- What is the cheapest FLUX.3 Klein API?
- Only BFL API publishes a price for FLUX.3 Klein that the board counts: $0.009 per image, as of 18 Oct 2026.
- Which providers sell FLUX.3 Klein?
- 2 providers list it: BFL API and fal. 1 publishes a price the board counts, as of 18 Oct 2026.