FLUX-1.1

flux-1.1-pro-ultra — Text-to-Image AI Model

flux-1.1-pro-ultra delivers Black Forest Labs' pinnacle of text-to-image generation, producing photorealistic images up to 2K resolution with natural aesthetics that rival professional photography. As the most powerful model in the flux-1.1 family, flux-1.1-pro-ultra excels in ultra high-resolution output up to 4MP and raw mode for authentic, less-processed visuals, solving the common issue of AI images looking overly artificial. Developers and creators seeking a Black Forest Labs text-to-image API turn to flux-1.1-pro-ultra for its stability in commercial batch generation, precise material rendering, and consistent facial proportions.

Part of the flux-1.1 pro lineup, this text-to-image AI model supports multiple aspect ratios like 1:1, 16:9, and 9:16, making it ideal for everything from social media graphics to high-end prints. With processing times around 30 seconds per image, flux-1.1-pro-ultra balances speed and superior detail for professional workflows.

What Sets flux-1.1-pro-ultra Apart

flux-1.1-pro-ultra stands out with its raw mode, which generates less processed images featuring organic lighting, realistic textures, and film-like color grading. This enables photographers and artists to produce authentic visuals without the typical AI gloss, perfect for professional portfolios or e-commerce product shots.

Supporting max resolutions of 2K (2048x2048) and up to 4MP, it handles demanding high-resolution text-to-image AI model tasks with crisp details in portraits, product renders, and creative designs. Users benefit from print-ready outputs that maintain natural vivid expressions and delicate material representations.

Optimized for five aspect ratios—1:1, 16:9, 9:16, 4:3, 3:4—and formats like JPG or PNG, flux-1.1-pro-ultra covers diverse use cases from landscape banners to portrait ads. This flexibility, combined with reproducible seeds, ensures consistent results for batch processing in commercial pipelines.

• Raw mode for natural aesthetics: Delivers film-like quality, avoiding over-polished AI looks.
• 2K to 4MP resolution support: Powers detailed professional prints and digital assets.
• Multi-aspect ratio versatility: Adapts to social media, marketing, and print needs seamlessly.

• Prompt and Image Balance: When using both prompt and image_prompt, ensure they complement each other for harmonious results.
• Aspect Ratio and Composition: Select aspect_ratio carefully to match your creative vision.
• Seed Usage: To maintain consistency, use the same seed value across iterations.
• Safety Guidelines: Adjust safety_tolerance based on your project needs, balancing creativity and compliance.

Legal Information

By using this model, you agree to:

• Black Forest Labs API agreement
• Black Forest Labs Terms of Service

How to Use flux-1.1-pro-ultra on Eachlabs

Access flux-1.1-pro-ultra seamlessly on Eachlabs via the Playground for instant testing, API for scalable integrations, or SDK for custom apps. Provide a natural language prompt detailing subjects, style, and mood; select aspect ratios like 16:9, toggle raw mode, choose JPG/PNG output, and set a seed for consistency. Generate 2K-4MP photoreal images in about 30 seconds with professional natural aesthetics.

• Generates high-resolution, visually appealing images using textual and visual inputs.
• Supports adjustable parameters for enhanced creativity and precision.
• Offers repeatable outputs with the seed parameter.

Use Cases for flux-1.1-pro-ultra

Marketing teams building AI image generators for e-commerce use flux-1.1-pro-ultra to render product visuals with precise lighting and textures. Input a prompt like "luxury watch on a marble surface with golden hour sunlight, raw mode" to get photorealistic composites ready for catalogs, bypassing costly photoshoots.

Graphic designers leverage its facial proportion accuracy for portrait photography campaigns. By specifying "confident young woman in cyberpunk fashion, neon red lighting, 16:9 aspect ratio," they create striking ads with natural expressions and vivid details, ideal for social media visuals.

Developers integrating a flux-1.1-pro-ultra API into apps benefit from its batch stability for automated image creation. Feed detailed prompts for sci-fi concepts like "futuristic silver outfit with holographic background," generating consistent high-res assets for game prototypes or NFT collections.

Content creators producing print materials appreciate the 4MP capability and raw mode for organic outputs. This supports scenarios like custom book covers or posters, ensuring professional-grade quality without post-processing tweaks.

• Detailed Scenes: Describe intricate settings (e.g., "a bustling city at night with neon signs and rain-soaked streets").
• Image Combinations: Upload  photo as image_prompt and refine with textual descriptions.
• Aspect Ratio Variations: Explore unique compositions with non-standard ratios like "3:2" or "1:1."
• Creative Styles: Adjust image_prompt_strength  to discover new artistic influences.

• Complex Prompts: Overly detailed or conflicting prompts may lead to unpredictable outputs.
• Image Prompt Dependency: High image_prompt_strength values may overshadow textual descriptions.
• Resolution Constraints: Extremely high resolutions may impact processing time and performance.

Output Format: JPG,PNG