Qwen Image 2.1 Turbo vs FLUX.2 pro vs Seedream 5 Lite: price per image

Qwen-Image-2.1-Turbo is the cheapest of the three at $0.016 per image (Alibaba, Singapore), then FLUX.2 [pro] at $0.03 for the first megapixel, then Seedream 5.0 Lite at $0.035 per image on fal. Sume lists FLUX.2 pro and Seedream 5.0 Lite, not Qwen 2.1, and bills list x 1.25 for them: $0.0375 and $0.04375.

Vendor prices

FLUX.2 [pro] on fal is $0.03 for the first output megapixel and $0.015 per extra megapixel, so a 1920x1080 image is $0.045. Seedream 5.0 Lite on fal is a flat $0.035 per image, up to 6 images per call, for outputs up to 3072x3072. Alibaba's Turbo page lists $0.016 in Singapore.

What the gap buys

Sume bills the 1.25 multiple on list and returns Sume-hosted URLs through one endpoint and one job model. Sume's n is capped at 4 on both rows, below the 6 that fal documents for Seedream.

Pricing for sizes above 1K can differ from the listed default, so read the per-model endpoints record before you budget a large run.

curl -s https://api.sume.com/v1/images/models/black-forest-labs/flux.2-pro/endpoints \
  -H "Authorization: Bearer $SUME_API_KEY"

Pick by job

• Draft sheets where price dominates: the cheapest listed row.
• Ad banners at 16:9 or 21:9: FLUX.2 pro lists 13 ratios on Sume.
• Edits with references: both Sume rows accept references; check the input_references range in the catalog.