FLUX.2 Flex API Pricing: Official vs Resellers (September 2026)
FLUX.2 Flex is an image generation model from Black Forest Labs. We track 5 published prices for it from 5 providers (1 official, 3 aggregators, 1 reseller), last checked 2026-09-28.
Black Forest Labs lists FLUX.2 Flex at $0.0500/image (1MP).
The lowest published price is $0.0500/image from Black Forest Labs (official; 1MP). No listed price is below the official price for a matching spec.
Published prices — not yet independently tested. Figures are copied from each provider's public pricing page or pricing API on 2026-09-28. We have not run test generations yet, so a listed price says nothing about reliability or output quality. Every price links to its source.
All published prices (5)
Sorted by normalized price (US dollars per image). Rows without a normalized figure (clip length or unit not stated) are listed last.
| Provider | Type | Spec | Published price | $ / image | × official | Confidence | Source | Note |
|---|---|---|---|---|---|---|---|---|
| Black Forest Labs | Official | 1MPListed as: FLUX.2 [flex] | $0.05 / image | $0.0500 | 1.00× | Pricing page | bfl.ai | NoteMegapixel pricing: first MP $0.05, each additional output MP $0.05; each input/reference image MP $0.05. 1 MP = 1024x1024; MP rounded up separately for output and each reference image; max 4MP output. Constants read from bfl.ai/pricing calculator bundle; docs pricing table shows 'from $0.05'. Adjustable steps/guidance; typography. NOTE: FLUX.2 overview page says '$0.06 / MP' while pricing page/calculator say $0.05. |
| fal.ai | Aggregator | 1024×1024Listed as: Flux 2 Flex | $0.05 / MP | $0.0500 | — | Pricing page | fal.ai | Note$0.05/MP on input and output, rounded up. |
| SiliconFlow | Aggregator | FlexListed as: FLUX.2 [flex] | $0.06 / image | $0.0600 | ~1.20× | Pricing page | siliconflow.com | |
| OpenRouter | Aggregator | Flex · 1024×1024Listed as: Black Forest Labs: FLUX.2 Flex | $0.06 / MP | $0.0629 | — | Pricing API | openrouter.ai | Note$0.06 per output MP plus $0.06 per input MP (edits); ~1.05MP for 1024x1024; usd_per_image computed as rate x 1.048576 MP |
| Kie.ai | Reseller | Flex · 1KListed as: Black Forest Labs Flux 2 Flex, text to image, 1K | $0.07 / image | $0.0700 | — | Pricing page | kie.ai | NoteKie credits: standard rate $0.005/credit (stated in kie.ai billing UI text; $1,250 top-up gets +10% bonus). 14 credits/image. Kie-listed official/fal reference $0.12. |
× official = normalized price ÷ the cheapest official price for the same model and spec. ~ marks a relaxed match: tier, resolution or audio is unspecified on one side, and every compatible official spec costs the same. — = no unambiguous official price to compare.
Confidence: “Pricing page” = read on the provider’s own pricing or docs page; “Pricing API” = read from a public API response. “BYO” tiers are bring-your-own-account estimates, not per-call prices.
FAQ
- What is the official FLUX.2 Flex API price?
- Black Forest Labs lists FLUX.2 Flex at $0.0500/image (1MP). Official configurations: $0.0500/image (1MP).
- What is the cheapest FLUX.2 Flex API?
- The lowest published price is $0.0500/image from Black Forest Labs (official; 1MP). No listed price is below the official price for a matching spec. Prices were checked on 2026-09-28; they are published prices, not results of our own test generations.