The short answer
Black Forest Labs (FLUX) is billed per megapixel, credit-based ($0.015-0.07/mp). It has no free tier (None (prepaid credits, 1 credit = $0.01)). The paid plans we list start at from $0.03/image (FLUX.2 [pro]).
Plans and prices
| Plan | Price | What it covers |
|---|---|---|
| FLUX.2 [pro] | from $0.03/image | Megapixel-based pricing; flagship T2I + editing, up to 10 reference images. Launched #2 on Artificial Analysis T2I Arena. |
| FLUX.2 [flex] | from $0.05/image | Megapixel-based; tunable quality/steps variant of FLUX.2. |
| FLUX1.1 [pro] | $0.04/image | Previous-gen flagship text-to-image, fixed per-image price. |
| FLUX1.1 [pro] Ultra | $0.06/image | Up to 4MP output with optional 'raw' photorealistic mode. |
| FLUX.1 Kontext [pro] | $0.04/image | Fast in-context image editing, ~0.9s per 1024x1024 edit. |
| FLUX.1 Kontext [max] | $0.08/image | Highest-quality editing tier with improved typography and prompt adherence. |
How Black Forest Labs (FLUX) bills you
The pricing model is per megapixel, credit-based ($0.015-0.07/mp). Maker of the FLUX models offering a first-party REST API with async polling and megapixel-based pricing; powerful models but leaner API ops and no published SLA. Best suited to: first-party flux.2 generation + editing.
What to watch for on the bill
- FLUX.2 [pro]/[flex] use variable megapixel-based pricing, making exact per-image cost harder to predict
The pricing page we read
Source: https://bfl.ai/pricing. Prices change, so confirm there before you commit.
Compare Black Forest Labs (FLUX) with alternatives
Other image generation apis: OpenAI Images (gpt-image), Google Imagen / Gemini Image, fal.ai, Replicate, Stability AI.
Looking at quality rather than price? See the Black Forest Labs (FLUX) score on APIbenchmarks. Full entry: Black Forest Labs (FLUX) pricing.