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Prompt size limits

Limits are enforced per model × detail combination. See also Supported models in the main README.

Limits are enforced per model × detail combination. All models have Concise / Balanced / Rich presets; long-form models also enforce minChars:

Detail Qwen-Image-Edit Edit-2511 Image-2512 Image-2.0 FLUX.2 Klein SDXL SD1.5
Concise ~280 chars ~220 chars ~320 chars ~400 chars ~250 chars ~280 chars ~220 chars
Balanced ~520 chars ~420 chars ~380–650 chars ~550–800 chars ~450–700 chars ~520 chars ~380 chars
Rich ~920 chars ~680 chars 700–1000 chars 1100–1400 chars 900–1200 chars ~780 chars ~520 chars

Other families use limits tuned to their encoder (see src/lib/comfy-models/limits.ts).