What is the official flux-2-klein-4b API price?

Black Forest Labs lists flux-2-klein-4b at $0.0140/image (1MP). Official configurations: $0.0140/image (1MP).

What is the cheapest flux-2-klein-4b API?

The lowest published price is $0.0140/image from Black Forest Labs (official; 1MP). No listed price is below the official price for a matching spec. Prices were last updated on 2026-10-11; they are published prices, not results of our own test generations.

Image generation model · Black Forest Labs

flux-2-klein-4b API Pricing: Official vs Resellers (October 2026)

Official price

from$0.0140/image

Black Forest Labs · 1MP

Cheapest listed

$0.0140/image

Black Forest Labs · official

Providers listed

1 official · 1 aggregator · 1 reseller

Biggest discount

No discount

no listed price below official for the same spec

flux-2-klein-4b is an image generation model from Black Forest Labs. We track 3 published prices for it from 3 providers (1 official, 1 aggregator, 1 reseller), last updated 2026-10-11.

Black Forest Labs lists flux-2-klein-4b at $0.0140/image (1MP).

The lowest published price is $0.0140/image from Black Forest Labs (official; 1MP). No listed price is below the official price for a matching spec.

All published prices (3)

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 · checked	Source	Note
Black Forest Labs	Official	1MPListed as: FLUX.2 [klein] 4B	$0.014 / image	$0.0140	1.00×	Pricing page2026-09-28	bfl.ai	Note Megapixel pricing: first MP $0.014, each additional output MP $0.001; each input/reference image MP $0.001. 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 $0.014'. Fastest/cheapest; open weights (Apache 2.0). Docs: '$0.014 + $0.001/MP' (2MP = $0.015).
302.AI	Reseller	1MPListed as: flux-2-klein-4b	$0.014 / MP	$0.0140	1.00×	Pricing API2026-10-11	price.302.ai	Note Price list 'Flux > flux-2-klein-4b (The first MP is 0.014 PTC, followed by 0.001 PTC/MP. Each reference image pas...)': $0.014 / MP (megapixel). Per-megapixel price = fee for a 1MP generation; larger outputs/inputs cost more.
OpenRouter	Aggregator	Klein · 1024×1024Listed as: Black Forest Labs: FLUX.2 Klein 4B	$0.014 / MP	$0.0147	—	Pricing API2026-10-11	openrouter.ai	Note $0.014 per output megapixel from openrouter.ai; usd_per_image = rate x 1.048576 MP (1024x1024)

× 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.

Checked: the date shown with each price is when it was last checked. Dates more than 7 days before the latest update (2026-10-11) are shown in amber.

FAQ

What is the official flux-2-klein-4b API price?: Black Forest Labs lists flux-2-klein-4b at $0.0140/image (1MP). Official configurations: $0.0140/image (1MP).
What is the cheapest flux-2-klein-4b API?: The lowest published price is $0.0140/image from Black Forest Labs (official; 1MP). No listed price is below the official price for a matching spec. Prices were last updated on 2026-10-11; they are published prices, not results of our own test generations.