# FLUX Schnell ## Overview FLUX Schnell (German for "fast") is Black Forest Labs' speed-optimized image generation model. It delivers high-quality results in record time while maintaining the artistic excellence of the FLUX model family. **With the lowest cost per generation at just $0.003, it's the most economical choice for high-volume projects.** ## Model Details - **Provider**: Black Forest Labs - **Replicate ID**: `black-forest-labs/flux-schnell` - **Version**: Latest stable version ## Key Features - **Ultra-Fast Generation**: One of the fastest models available - **Consistent Quality**: Maintains high quality despite speed - **Prompt Adherence**: Excellent understanding of prompt instructions - **Efficient Processing**: Low computational requirements ## Default Parameters - **Resolution**: 1024x1024 - **Steps**: 4 (optimized for speed) - **Guidance Scale**: 3.5 - **Supports Negative Prompts**: Yes - **Supports Seed**: Yes ## Supported Aspect Ratios **11 aspect ratios**: - **Square**: 1:1 - **Landscape**: 4:3, 3:2, 5:4, 16:9, 21:9 - **Portrait**: 3:4, 2:3, 4:5, 9:16, 9:21 ## Supported Resolutions - **Megapixel Options**: 0.25 MP (fast) or 1 MP (standard) - Automatically calculated based on aspect ratio - All dimensions must be multiples of 32 ## Best Use Cases - Rapid prototyping and iteration - Real-time applications - High-volume generation needs - Quick concept visualization - Testing prompt variations ## Example Prompts 1. "A minimalist logo design for a tech startup, geometric shapes, blue and white" 2. "Portrait of a robot chef cooking in a futuristic kitchen" 3. "Abstract art piece with flowing colors representing music and rhythm" ## Tips for Best Results - Keep prompts clear and concise for speed - Use simple, direct descriptions - Ideal for iterative workflows - Great for A/B testing different concepts - Perfect for time-sensitive projects ## Strengths - **Cheapest model available** ($0.003 per generation) - Extremely fast generation (~5 seconds) - Reliable and consistent - Good general-purpose model - Excellent for rapid iteration - Perfect for high-volume/budget-conscious projects ## Limitations - May sacrifice some fine details for speed - Best for standard styles rather than highly specialized ones ## Cost **$0.003 per generation** (~333 images for $1) _The most cost-effective model available - over 6x cheaper than most alternatives!_