FLUX 1.1 Pro
Generate high-quality images from text with FLUX 1.1 Pro — Black Forest Labs' professional-grade text-to-image model. Renowned for exceptional prompt understanding, beautiful compositions, and versatile style capabilities, it delivers stunning results at an accessible price point.
Looking for maximum quality? Try FLUX 1.1 Pro Ultra for premium output with raw mode support.
Why It Looks Great
- Professional quality: Delivers polished, publication-ready images with excellent detail.
- Superior prompt understanding: Accurately interprets nuanced, poetic, and complex descriptions.
- Beautiful compositions: Creates visually balanced, aesthetically pleasing layouts naturally.
- Style versatility: Handles everything from ethereal fine art to photorealistic scenes.
- Flexible aspect ratios: Multiple format options for any creative need.
- Prompt Enhancer: Built-in tool to refine and expand your descriptions automatically.
- Reproducible results: Use the seed parameter to recreate exact outputs.
Parameters
| Parameter | Required | Description |
|---|
| prompt | Yes | Text description of the image you want to generate. |
| aspect_ratio | No | Output format (e.g., 1:1, 16:9, 9:16). Default: 16:9. |
| output_format | No | File format: jpg or png. Default: jpg. |
| seed | No | Random seed for reproducibility. Leave empty for random. |
| enable_base64_output | No | API only: Returns base64 string instead of URL. |
How to Use
- Write your prompt — describe your image with details about subject, mood, and atmosphere.
- Use Prompt Enhancer (optional) — click to automatically enrich your description.
- Choose aspect ratio — select the format that fits your needs.
- Select output format — choose jpg for smaller files or png for higher quality.
- Set seed (optional) — for reproducible results.
- Run — click the button to generate.
- Download — preview and save your image.
Pricing
Flat rate per image generation.
Best Use Cases
- Fine Art & Ethereal Imagery — Create dreamlike, poetic, and emotionally evocative visuals.
- Editorial & Magazine Content — Generate publication-quality images for articles and features.
- Concept Art — Visualize scenes, environments, and artistic concepts.
- Social Media & Marketing — Produce eye-catching visuals for campaigns and posts.
- Creative Storytelling — Illustrate narratives with atmospheric, mood-driven imagery.
Example Prompts
- "A woman suspended just beneath the surface of still water, her white dress flowing around her like petals. Soft light filters from above, illuminating her serene expression. The composition feels ethereal, quiet, and almost mythical."
- "Ancient library at twilight, dust particles floating in golden light beams, towering bookshelves disappearing into shadows"
- "Minimalist portrait of a dancer mid-leap, dramatic side lighting, motion blur on flowing fabric, black background"
- "Overgrown greenhouse with broken glass ceiling, wild flowers reclaiming the space, morning fog, nostalgic atmosphere"
- "Cinematic wide shot of a lone figure standing on cliff edge, stormy sea below, dramatic clouds, moody color palette"
Pro Tips for Best Results
- FLUX responds beautifully to poetic, evocative language — describe feelings and atmosphere.
- Use compositional language: "suspended", "flowing", "illuminating", "ethereal".
- Include emotional qualities: "serene", "quiet", "mythical", "nostalgic".
- Describe lighting in detail — it dramatically affects the mood of outputs.
- The model excels at dreamy, artistic imagery — lean into abstract and emotional descriptions.
- Match aspect ratio to composition: 16:9 for cinematic landscapes, 9:16 for portraits.
Model Comparison
| Model | Cost | Best For |
|---|
| FLUX 1.1 Pro | $0.04 | Professional quality, balanced price/performance |
| FLUX 1.1 Pro Ultra | $0.06 | Maximum quality, raw mode for natural aesthetics |
Notes
- The enable_base64_output option is only available through the API.
- Generation time may vary based on prompt complexity and queue load.
- FLUX is particularly strong with artistic, atmospheric, and emotionally-driven prompts.
- For the highest quality output with raw mode, consider FLUX 1.1 Pro Ultra.