Veo 3.1 Lite, Fast or standard: how to choose

Veo 3.1 has three preview models: standard, Fast and Lite. Lite drops 4K and extension; Fast targets speed. What each does, plus Sume's tiered Seedance.

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Pick standard Veo 3.1 for the widest feature set, Fast when speed matters, and Lite when you need image-to-video or text-to-video and can live without 4K, extension and video input. Google lists all three as Preview. Sume does not list Veo, but its Seedance 2 family has the same tier idea: seedance-2, seedance-2-fast and seedance-2-mini.

Google's details are from its Veo page; Sume's are from Video generation and price code, read 2026-09-29.

What differs between the three Veo 3.1 models?

Google says Fast versions keep quality while optimizing for speed and business use, such as programmatic ads and rapid A/B tests.

Veo 3.1 model rows from Google's Veo page, read 2026-09-29.
FeatureVeo 3.1 and FastVeo 3.1 Lite
Model codesveo-3.1-generate-preview, veo-3.1-fast-generate-previewveo-3.1-lite-generate-preview
InputText, image, videoText, image
Resolution720p, 1080p, 4K720p, 1080p (no 4K)
ExtensionYesNo
AudioAlways onAlways on
Latest updateJanuary 2026March 2026

How does Sume tier the same idea?

Sume's Seedance 2 family lists three price points on one request shape. Below are reserved amounts for a 5-second 720p 16:9 clip, before the agent fee, from the estimate code.

Reserve estimates for a 5-second 720p 16:9 clip from Sume's pricing code, read 2026-09-29.
ModelReserve
seedance-2$1.89
seedance-2-fast$1.52
seedance-2-mini$0.95

How do I test which tier is enough?

Run the same prompt and first frame on the cheapest tier, then move up only if the frames you care about fail: faces, text, hands. Keep the request identical so the difference is the model, and send an Idempotency-Key on each run so a retry does not bill twice.

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