FLUX.1 Krea [dev] | [text-to-image]
Black Forest Labs' FLUX.1 Krea [dev] delivers high-quality image generation from a 12 billion parameter flow transformer at $0.025 per megapixel. Trading raw parameter count for aesthetic refinement through collaboration with Krea AI, this model prioritizes visual quality and commercial viability over pure speed. Built for creators and enterprises needing production-ready images without the licensing restrictions of research-only alternatives.
Use Cases: Commercial Product Photography | Marketing Asset Generation | Creative Concept Visualization
FLUX.1 Krea [dev] is a commercially-licensed alternative in the FLUX family, offering flexible resolution scaling with per-megapixel pricing that becomes cost-competitive at lower resolutions, delivering 40 generations per $1.00 at standard sizes.
| Metric | Result | Context |
|---|
| Parameter Count | 12 billion | Flow transformer architecture optimized for aesthetic quality |
| Inference Steps | 28 (default) | Configurable 1-50 steps for speed/quality tradeoff |
| Cost per Megapixel | $0.025 | 40 generations per $1.00 at 1MP; images billed by rounding up to nearest megapixel |
| Max Resolution | Up to 4 megapixels | Flexible aspect ratios via landscape/portrait/square presets |
| Batch Generation | 1-4 images | Single API call generates multiple variations |
| Related Endpoints | FLUX.1 [dev], FLUX.1 SRPO [dev] | Standard dev vs aesthetic-tuned vs style-refined variants |
Commercial-Ready Generation with Aesthetic Focus
FLUX.1 Krea [dev] implements a 12 billion parameter flow transformer architecture tuned specifically for aesthetic quality through Black Forest Labs' collaboration with Krea AI. Unlike research-licensed models that restrict commercial use, this variant ships with full commercial permissions while maintaining the prompt interpretation capabilities of the base FLUX.1 architecture.
What this means for you:
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Flexible Resolution Scaling: Generate from sub-megapixel thumbnails to 4MP hero images with per-megapixel billing, paying only for the resolution you need rather than flat per-image costs
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Configurable Quality Control: Adjust inference steps (1-50) and guidance scale (1-20) to balance generation speed against prompt adherence for different production workflows
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Built-in Safety Filtering: Optional safety checker validates outputs against NSFW concepts before delivery, reducing moderation overhead for customer-facing applications
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Batch Efficiency: Generate up to 4 variations per API call with consistent seed control for A/B testing creative concepts without multiple requests
Technical Specifications
| Spec | Details |
|---|
| Architecture | FLUX.1 Krea [dev] |
| Input Formats | Text prompts with optional seed control |
| Output Formats | JPEG, PNG |
| Max Resolution | 4 megapixels with preset aspect ratios (landscape_4_3, portrait_16_9, square_1_1) |
| License | Commercial use permitted |
API Documentation | Quickstart Guide | Enterprise Pricing
How It Stacks Up
FLUX.1 [dev] ($0.025/MP) – FLUX.1 Krea [dev] trades the base model's research-only license for commercial permissions while adding aesthetic tuning from Krea AI's dataset at identical pricing. FLUX.1 [dev] remains ideal for research applications where licensing restrictions aren't a concern.
FLUX.1 SRPO [dev] ($0.025/MP) – FLUX.1 Krea [dev] prioritizes aesthetic quality through Krea's training data, while SRPO emphasizes style refinement through reinforcement learning. Both share commercial licensing and per-megapixel pricing, with SRPO offering stronger stylistic control for brand-consistent generation.
Flux 2 Pro ($0.055/MP) – FLUX.1 Krea [dev] delivers commercially-licensed generation at 2.2x lower cost ($0.025 vs $0.055 per megapixel). Flux 2 Pro provides next-generation prompt understanding and detail preservation for applications where maximum quality justifies the premium pricing.
Flux 2 Flex ($0.035/MP) – FLUX.1 Krea [dev] offers 1.4x cost savings ($0.025 vs $0.035 per megapixel) while maintaining commercial licensing. Flux 2 Flex balances the quality improvements of Flux 2 architecture with more accessible pricing for high-volume generation workflows.
fal-ai/flux/krea
