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.

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.
| Feature | Veo 3.1 and Fast | Veo 3.1 Lite |
|---|---|---|
| Model codes | veo-3.1-generate-preview, veo-3.1-fast-generate-preview | veo-3.1-lite-generate-preview |
| Input | Text, image, video | Text, image |
| Resolution | 720p, 1080p, 4K | 720p, 1080p (no 4K) |
| Extension | Yes | No |
| Audio | Always on | Always on |
| Latest update | January 2026 | March 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.
| Model | Reserve |
|---|---|
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.
Sources
Related posts
More in Models
- Veo 3.1 reference images: three max, and the 8-second rule
Veo 3.1 takes up to three reference images, and a request with them must run 8 seconds. Sume does not list Veo; its reference-capable models take more.
- Veo 3.1 vs Kling 3.0: how to choose by inputs and limits
Google's Veo 3.1 limits next to the kling-3 entry in Sume's catalog: clip length, resolution, references and audio. Sume lists kling-3 and does not list Veo.
- Choosing an AI video API as a developer: a technical checklist
Choose an AI video API on job model, not demos: async submit and poll, idempotent retries, webhooks, live capability discovery, a billing model you can read
- AI video with audio: which models always add sound, which are optional
On Sume, minimax-h3, minimax-h3-max and gemini-omni-flash-1.1 always add native audio; kling-3, Seedance and Wan make it optional; grok-imagine-video-1.5 none.
Written by Sume