Black Forest Labs · Image model

FLUX (1.1 / 2)

FLUX AI is Black Forest Labs' family of 12-billion-parameter flow-transformer im

Generate on Coinis Read the docs

One API key. Every model.

per megapixel
Example
AI image
Commercial use included Verified May 26, 2026 Outputs are yours No training on your data
Endpoints

Start building with FLUX (1.1 / 2).

One model. Three ways to call it. Same key, same bill.

FLUX.1 [schnell]

Image generation

One call. Same key. Same bill.

$0.01 / megapixel

FLUX.1 [dev]

Image generation

One call. Same key. Same bill.

$0.05 / megapixel

FLUX 1.1 [pro]

Image generation

One call. Same key. Same bill.

$0.07 / image

FLUX.2 [pro]

Image generation

One call. Same key. Same bill.

$0.05 / image 1mp

FLUX.2 [klein] 4B

Image generation

One call. Same key. Same bill.

$0.02 / image

FLUX 1.1 Pro Redux (variation)

Image generation

One call. Same key. Same bill.

$0.07 / image

FLUX 1.1 Pro Ultra (upscale)

Image generation

One call. Same key. Same bill.

$0.1 / image

FLUX 1.1 Pro Fill (inpaint/erase)

Image generation

One call. Same key. Same bill.

$0.09 / image

Capabilities

What it does best.

FLUX AI capabilities

Resolution and aspect ratios

  • All FLUX.1 variants support resolutions between 0.1 and 2.0 megapixels across a wide range of aspect ratios [^3]
  • FLUX 1.1 Pro Ultra delivers up to 2K output (up to 2048×2048, 4 megapixels). 4x the resolution of standard FLUX 1.1 [pro] [^4]
  • Supported ratios include 1:1, 16:9, 9:16, 3:2, 2:3, 4:5, 5:4, 4:3, and custom dimensions [^2]

Speed

  • FLUX.1 [schnell] generates in 1 to 4 inference steps with sub-second response times [^1]
  • FLUX 1.1 [pro] is six times faster than its predecessor FLUX.1 [pro] while improving image quality and prompt adherence [^2]
  • FLUX 1.1 Pro Ultra generates in approximately 10 seconds per image. suited to print and editorial workflows, not real-time use [^4]

Generation and editing modes

  • Text-to-image generation across all variants [^3]
  • Image conditioning on FLUX 1.1 Pro Ultra via image_url and image_prompt_strength (0–1 range) for style transfer and composition control [^4]
  • Mask-based inpainting and object removal via FLUX 1.1 Pro Fill [^5]
  • Style and composition variation from a reference image via FLUX 1.1 Pro Redux [^6]

Output formats

  • WebP, JPEG, and PNG outputs supported [^2]

Safety controls

  • FLUX.1 [schnell] includes a built-in NSFW safety checker, enabled by default [^1]
  • FLUX 1.1 [pro] exposes a safety_tolerance parameter (range 1–6, default 2) for configurable content filtering [^2]

Licensing

  • FLUX.1 [schnell] is open-weight under Apache 2.0, with weights on Hugging Face and day-1 ComfyUI integration [^3]
  • FLUX.1 [dev] is open-weight but restricted to non-commercial use. commercial licensing requires contacting Black Forest Labs directly [^3]
  • FLUX 1.1 [pro], FLUX 1.1 Pro Ultra, FLUX 1.1 Pro Fill, FLUX 1.1 Pro Redux, FLUX.2 [pro], and FLUX.2 [klein] are available for commercial use via the licensed API [^5]
API

Call FLUX (1.1 / 2) in three lines.

One key. One base URL. Same SDK shape you already use. 

# 1. set your key
export COINIS_API_KEY="sk_live_..."

# 2. call the model
curl https://api.app.coinis.com/v1/image/generate \
  -H "Authorization: Bearer $COINIS_API_KEY" \
  -d '{"prompt":"neon city, rain, tracking shot"}'
import { Coinis } from "@coinis/sdk";
const coinis = new Coinis(process.env.COINIS_API_KEY);

const job = await coinis.image.generate({
  model: "models/black-forest-labs/flux",
  prompt: "neon city, rain, tracking shot",
});
from coinis import Coinis
coinis = Coinis(os.environ["COINIS_API_KEY"])

job = coinis.image.generate(
    model="models/black-forest-labs/flux",
    prompt="neon city, rain, tracking shot",
)
Response 
{
  "id": "gen_8fa2c1",
  "status": "succeeded",
  "model": "models/black-forest-labs/flux",
  "output": {
    "image_url": 
                "https://cdn.coinis.com/gen_8fa2c1.mp4"
              
              ,
    "format": "mp4"
  },
  "tokens_used": 10
}

Already on another provider's SDK? Change the host. Keep the call.

Pricing

Token pricing. No surprises.

One wallet across every model. No API accounts to juggle.

FLUX (1.1 / 2) · FLUX.1 [schnell]
0.1 tokens
per megapixel · $0.01
Photoreal
$0.01 / megapixel
One key. Every model. One invoice. 1 token = $0.10
1 megapixel ≈ 0 tokens ($0.01)
Start free. 15 tokens a week.

No credit card.

Why pay through Coinis
  • One wallet for every model. No API keys. No separate bills.
  • Generate ads. Launch to Meta. Track in one place.
  • On-brand output from your Brand Profile.

1 token = $0.10 pay-as-you-go. Less on a plan.

Standard vs Fast

Pick the run for the job.

FLUX.1 [schnell]

Final renders, studios
Resolution —
Price $0.01 / megapixel

FLUX.1 [dev]

Rapid tests, high volume
Resolution —
Price $0.05 / megapixel
Use cases

Two buyers. One model.

For builders

Resell every model. One key. One bill.

Unified API across video, image, audio, and LLM.

Generate 500 variants overnight.

Async queue plus webhooks. Batch at scale.

White-label the output.

Ship it under your brand. Outputs are yours.

For creatives

Ship a Reel before lunch.

Prompt to platform-native clip in minutes.

Same product. Ten formats.

One generation, every aspect ratio.

Commercial UGC without a creator.

Authentic selfie-style ads, on brand.

High-volume storyboards and A/B draft previews Generate dozens of concept frames or ad variations in seconds. FLUX.1 [schnell] runs at $0.006/MP on Coinis, making it the right choice for preview-stage volume where speed and cost matter more than maximum quality [^1].

Marketing and social creatives at production quality Ship platform-ready assets for Instagram, YouTube, and display campaigns. FLUX 1.1 [pro] delivers production-grade output at $0.068/image on Coinis. ranked above Midjourney v6.0 and DALL-E 3 HD on the Artificial Analysis Elo leaderboard for visual quality and prompt following [^2].

Print-ready and 2K hero imagery Generate editorial illustrations, product photography, and campaign hero shots that hold up at large format. FLUX 1.1 Pro Ultra outputs up to 2048x2048 pixels (4 megapixels) at $0.102/image, built for deliverables where resolution cannot be compromised [^4].

Object removal and background replacement Fix product shots, clean up backgrounds, or swap scene elements without a full reshoot. FLUX 1.1 Pro Fill targets only the masked area, leaving the rest of the image untouched, at $0.085/image on Coinis [^5].

Style and composition variations from a reference Produce controlled visual variants from an existing image without starting over. FLUX 1.1 Pro Redux generates on-brand variations at $0.068/image. useful for seasonal refreshes, localization, and creative testing [^6].

Renders in seconds. Set a seed. Get the same frame back.

Outputs are yours. Sell them.

Safe for paid ads.

Your prompts are never used for training.

FAQ

FLUX (1.1 / 2) FAQs

How much does FLUX AI cost on Coinis?

Pricing varies by variant. FLUX.1 [schnell] starts at $0.006/MP. the lowest cost in the family, suited for high-volume drafts. FLUX 1.1 [pro] is $0.068/image for production-quality output. FLUX 1.1 Pro Ultra is $0.102/image for 2K resolution. FLUX 1.1 Pro Fill is $0.085/image for inpainting. FLUX 1.1 Pro Redux is $0.068/image for variations. FLUX.2 [pro] is $0.051/image and FLUX.2 [klein] is $0.024/image. All variants are billed in Coinis tokens at the listed retail rate.

Which FLUX variant should I use. schnell, dev, 1.1 Pro, or FLUX.2?

Use FLUX.1 [schnell] ($0.006/MP) for storyboards, previews, and any workflow where you need fast, low-cost volume [^1]. Use FLUX 1.1 [pro] ($0.068/image) for production marketing assets and social creatives [^2]. Use FLUX.2 [pro] ($0.051/image) or FLUX.2 [klein] ($0.024/image) when you want the latest generation at a competitive rate. FLUX.1 [dev] is open-weight but carries a non-commercial license by default. on Coinis it routes via the licensed API, so commercial use is covered [^3].

What is the difference between FLUX 1.1 [pro] and FLUX 1.1 Pro Ultra?

FLUX 1.1 [pro] outputs standard images up to 2 megapixels and is six times faster than the original FLUX.1 [pro] [^2]. FLUX 1.1 Pro Ultra outputs up to 4 megapixels (2048x2048, 2K). four times the resolution of the standard tier. and also supports image conditioning for style transfer [^4]. Ultra takes approximately 10 seconds per image and costs $0.102/image on Coinis, compared to $0.068/image for standard FLUX 1.1 [pro].

Can I use FLUX images commercially?

Yes, when you generate via Coinis. FLUX.1 [schnell] is Apache 2.0 open-weight and permits commercial use [^3]. FLUX.1 [dev] weights are non-commercial by default, but Coinis routes through the licensed commercial API so you are not subject to that restriction [^3]. All FLUX 1.1 [pro] variants and FLUX.2 variants are available for commercial use via the API [^5].

Is there a FLUX API I can call directly on Coinis?

Yes. Send a POST request to https://api.app.coinis.com/v1/image/generate with your chosen model variant ID in the request body. See the full parameter schema, authentication guide, and code examples on the FLUX API sub-page.

What resolutions and aspect ratios does FLUX support?

All FLUX.1 variants support resolutions between 0.1 and 2.0 megapixels [^3]. Supported aspect ratios include 1:1, 16:9, 9:16, 3:2, 2:3, 4:5, 5:4, 4:3, and custom pixel dimensions [^2]. FLUX 1.1 Pro Ultra extends this to 4 megapixels (up to 2048x2048) for print-grade output [^4].

How fast is FLUX. can I use schnell for real-time generation?

FLUX.1 [schnell] generates in 1 to 4 inference steps with sub-second response times, making it well suited to interactive and real-time workflows [^1]. FLUX 1.1 [pro] is six times faster than the original FLUX.1 [pro] but is optimized for quality over latency [^2]. FLUX 1.1 Pro Ultra takes approximately 10 seconds per image and is not appropriate for sub-second or real-time use cases [^4].

Does FLUX support inpainting, upscaling, or image-to-image variations?

Yes, across three specialized variants. FLUX 1.1 Pro Fill provides mask-based inpainting and object removal at $0.085/image [^5]. FLUX 1.1 Pro Ultra supports image conditioning via a reference image and prompt strength control, enabling style transfer at up to 2K resolution, at $0.102/image [^4]. FLUX 1.1 Pro Redux generates controlled style and composition variations from a reference image at $0.068/image [^6].

Related

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Start free

Your wallet. Every model. One call away.

Start free. 15 tokens a week. No card.

Generate on Coinis

No credit card.

Pricing and capabilities verified 2026-05-26. Read the docs .