Overview
Flux (by Black Forest Labs) is a popular image generation model family with three tiers balancing speed and quality.Quick start
Parameters
string
required
Text description of the image to generate.
string
default:"1:1"
Output aspect ratio. Supports standard ratios like
16:9, 9:16, 1:1, 4:3, 3:4.object
Supports
image_size (enum: square_hd, square, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9), num_inference_steps (default 28 for pro), guidance_scale (default 3.5).Pricing
Tips
- Flux Schnell is as cheap as Nano Banana (5 credits) and faster. Good for quick drafts.
- Flux Pro excels at design and graphic content — logos, icons, illustrations. Nano Banana is better for photos.
- Inference steps can be tuned via provider options. Higher values = better quality, slower generation.
Related models
Nano Banana
Better for photorealistic images and editing. Same price as Schnell.
Recraft
Purpose-built for graphic design and illustrations.