FLUX.3 Image API Pricing: $0.048 per Image at 1K

TL;DR

• FLUX.3 Image (flux-3-image), Black Forest Labs' October 2026 image model, is billed per image on HiAPI: $0.041 at 768, $0.048 at 1K (default), $0.07 at 1.5K, $0.10 at 2K, and $0.607 at 4K. That matches Black Forest Labs' own list price. Launch sale through October 31: 20% off every tier, so 1K is $0.0384.
• Text-to-image and editing with up to 10 reference images cost the same. References and web grounding add nothing.
• $10 buys about 208 images at 1K, or about 260 during the launch sale. FLUX.3 Image is live on HiAPI: open the model page and generate in the browser. New accounts get 200 free credits.

Price table

Resolution	Per image	Launch sale (to Oct 31)	100 images	1,000 images
768	$0.041	$0.0328	$4.10	$41
1K (default)	$0.048	$0.0384	$4.80	$48
1.5K	$0.07	$0.056	$7.00	$70
2K	$0.10	$0.08	$10.00	$100
4K	$0.607	$0.4856	$60.70	$607

Live HiAPI prices, checked October 15, 2026.

Each task returns one image, and you pay only when it succeeds. The tier sets a pixel budget rather than a fixed edge length: a 4:3 image at 1K comes back at 1184×880.

What $0.048 gets you

The default 1K tier, 4:3:

A refined still life photograph of a miniature terracotta architectural model
on ivory paper, a warm brass desk lamp, a sprig of olive leaves and a charcoal
pencil, precise shadows and soft late-afternoon sunlight, restrained
design-magazine composition, no text.

Generate with this prompt → (1K, 4:3)

flux-3-image, 1K, 4:3, 1184×880, $0.048.

Which resolution to pay for

• 768 ($0.041): thumbnails, social tests, and quick checks on a prompt. Only $0.007 less than 1K, so most people skip it.
• 1K ($0.048): the default and the best value for web images and drafts.
• 1.5K ($0.07) and 2K ($0.10): product pages, headers, and anything you'll crop.
• 4K ($0.607): print and large-format work. One 4K image costs as much as about twelve at 1K, so lock the prompt at 1K first, then re-run the keeper at 4K.

FLUX.3 Image vs other image APIs on HiAPI

Model	1K price	Highest tier	Reference images
FLUX.3 Image flux-3-image	$0.048	4K $0.607	Up to 10, same model id
FLUX.2 Pro flux-2/text-to-image	$0.05 (1 MP)	4 MP $0.125	Separate edit endpoint, up to 8
FLUX 1.1 Pro flux-1.1-pro	$0.05	—	—
GPT Image 2 gpt-image-2/text-to-image	$0.03	4K $0.06	Separate edit endpoint
Nano Banana 2.1 gemini-nano-banana-2.1	$0.022	4K $0.058	Up to 10
Muse Image muse-image-1.0/text-to-image	$0.015 flat	~2.5 MP fixed	Separate edit endpoint, up to 10

What this means:

• At 1K, FLUX.3 Image costs about the same as FLUX.2 Pro and gives you text-to-image and editing on one model id.
• For high-volume, low-cost generation, Muse Image ($0.015) or Nano Banana 2.1 ($0.022) cost less than half as much per image.
• 4K is where FLUX.3 Image gets expensive. If you need 4K in bulk, GPT Image 2 ($0.06) and Nano Banana 2.1 ($0.058) are about a tenth of the price.

Side-by-side outputs are in FLUX.3 Image vs FLUX.2.

Ways to spend less

• Iterate at 1K: lock the composition for $0.048 a try, then re-run the final at 2K or 4K.
• Always set resolution: it defaults to 1K, and a stray 4K turns a $0.048 test into $0.607.
• Edit instead of regenerating: pass the image you like as a reference with a short change list. It costs the same as a fresh image and keeps the parts you already like.

FAQ

Do reference images cost extra?

No. You can pass up to 10, and the price depends only on the resolution tier.

Does grounding (web search) cost extra?

No. grounding is on by default and doesn't change the price.

Am I charged for failed tasks?

No. You pay only for images that generate successfully.

Is the HiAPI price higher than Black Forest Labs' own?

No. All five tiers match Black Forest Labs' list price, and through October 31 they're 20% below it. You also get the same API key and billing as every other model on HiAPI.

Integration code is in the FLUX.3 Image API guide, and ready-made prompts in FLUX.3 Image prompt recipes. Or copy the still-life prompt above and generate your first image on the model page.