flux-1.1-pro

by Black Forest Labs

Image Generation

Best-in-class image quality. Exceptional prompt adherence. Photorealistic and artistic styles.

2048×2048 max
~3s average
From $0.03/image

Specifications

Model ID flux-1.1-pro
Provider Black Forest Labs
Modality Image Generation (text-to-image)
Max Resolution 2048 × 2048
Supported Sizes 512×512, 768×768, 1024×1024, 1024×1792, 1792×1024, 2048×2048
Average Speed ~3 seconds (1024×1024)
Cost $0.03/image (1024×1024), $0.05/image (2048×2048)
Output Formats PNG, JPEG, WebP
Supported Parameters prompt, size, negative_prompt, steps, seed, guidance_scale, num_images
Default Steps 30
Guidance Scale Range 1.0 – 20.0 (default: 7.5)
Max Images per Call 4
API Endpoint POST /v1/images/generations
API Compatibility OpenAI-compatible

Generated with flux-1.1-pro

1024×1024 • 3.1s

"A dragon perched on a neon-lit Tokyo rooftop at midnight, cinematic lighting, 8K"

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1024×1024 • 2.8s

"Product photo of white sneakers on marble surface, studio lighting, clean background, commercial photography"

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1792×1024 • 3.9s

"Vast crystal cavern with underground waterfalls and bioluminescent mushrooms, photorealistic, wide angle"

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1024×1792 • 3.2s

"Portrait of an elderly fisherman mending nets at golden hour, weathered hands, shallow depth of field"

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2048×2048 • 4.5s

"Modern minimalist house on a cliff overlooking the ocean, architectural photography, dawn light"

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1024×1024 • 2.9s

"Overhead shot of a ramen bowl with steam rising, dark moody food photography, chopsticks resting on bowl"

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1024×1792 • 3.4s

"Cyberpunk samurai in rain-soaked alley, neon reflections on wet pavement, volumetric fog, cinematic"

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1792×1024 • 3.7s

"Ancient Angkor Wat temple at sunrise, mist rolling through stone corridors, golden light, hyperrealistic"

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API Usage

OpenAI-compatible. Drop in your existing SDK.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.fluxpool.ai/v1",
    api_key="fp_your_api_key"
)

response = client.images.generate(
    model="flux-1.1-pro",
    prompt="A dragon perched on a neon-lit Tokyo rooftop at midnight, cinematic lighting, 8K",
    size="1024x1024",
    n=1
)

print(response.data[0].url)
response = client.images.generate(
    model="flux-1.1-pro",
    prompt="A dragon perched on a neon-lit Tokyo rooftop at midnight, cinematic lighting, 8K",
    size="2048x2048",
    n=2,
    extra_body={
        "negative_prompt": "blurry, low quality, distorted",
        "steps": 40,
        "guidance_scale": 9.0,
        "seed": 42
    }
)

"A dragon on a neon-lit Tokyo rooftop, 8K"

Generated with flux-1.1-pro

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50 free generations. No credit card required.

Best for

How it compares

flux-1.1-pro Image
2048×2048~3s$0.03

Best overall quality

2048×2048~4s$0.02

Asian aesthetics, multilingual

sdxl-1.0 Image
1024×1024~2s$0.01

Cheapest, huge ecosystem

ideogram-2.0 Image
2048×2048~5s$0.04

Best text rendering

1024×1024~3s$0.02

Design-oriented

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50 free generations. OpenAI-compatible API. No credit card.