Veo 3.1 Fast has identical settings to Veo 3.1 — same eight-second lock, same 720p, 1080p and 4K, same three references. It's a speed tier and nothing else. Veo 3.1 Lite is the one that costs you: no references section at all, and no 4K. It gains one thing, a 4–8 second slider rather than a lock.
Three tiers, and the middle one is free. That's not how tier naming usually works, and it changes which model you should be iterating on.
What's actually different?
Two rows out of six, and both are on Lite.
| Veo 3.1 | Veo 3.1 Fast | Veo 3.1 Lite | |
|---|---|---|---|
| Duration | Locked 8s | Locked 8s | **4–8s slider** |
| Resolution | 720 / 1080 / 4K | 720 / 1080 / 4K | **720 / 1080** — no 4K |
| References | 3 | 3 | **None — no section at all** |
| Accepted types | Images or clips | Images or clips | n/a |
| Aspect ratios | 9:16, 16:9 | 9:16, 16:9 | 9:16, 16:9 |
| Audio | Always on | Always on | Always on |
| Frames | Start and end | Start and end | Start and end |
Source: Hexcoded Creative Studio picker, Video → Create, September 2026.
Read the first two columns and they're the same column twice.
Veo 3.1 Fast gives up nothing the picker exposes. Identical duration lock, identical three resolution tiers including 4K, identical three references, identical accepted types, identical aspect ratios, identical frame support.
Its own description is accurate about this: "faster Veo, same sound and scene extension." So it's a speed tier, and the product says so.
Lite is where things change, and the two changes are substantial. No references section means no way to attach a saved actor, a location or a style. And no 4K means it can't produce the top tier the other two can.
Veo 3.1 Fast costs you nothing. Veo 3.1 Lite costs you references and 4K. The naming suggests the reverse.
Where this falls short. "Nothing the picker exposes" is the honest limit. Render speed isn't a setting, and neither is output quality — Fast could differ on either and we haven't measured it. What's verifiable is that every configurable option is the same.
Why is Veo locked to eight seconds?
Because the picker says the lock is conditional, not absolute.
Both Veo 3.1 and Veo 3.1 Fast show the message "locked to 8s — required by Veo for the current resolution / references." So it's tied to the configuration rather than being a hard model ceiling.
Google's own documentation describes Veo 3.1 as generating eight-second videos at 720p, 1080p or 4K with native audio, which matches the picker exactly.
Lite doesn't carry that message. It has a 4–8 second slider, which is the one axis where Lite is more flexible than the other two.
What does losing references actually cost you?
Character consistency, and that's the whole answer.
A reference is how you carry a character, a place or a look into a shot. Attach a saved actor and the model is being shown who this is; describe them and it's inventing them again.
Lite has no references field. So there's no route to attaching a saved actor at all — not a lower ceiling, an absent mechanism.
For a standalone shot with nothing to maintain, that's irrelevant. For anything with a recurring character it makes Lite unusable, and it's the reason you shouldn't develop on Lite and deliver on Veo 3.1.
How does Veo reach past a minute?
Through Extend rather than through a longer single pass.
Veo 3.1's own description is "native-audio film in 4K, extendable past a minute." That's accurate and the mechanism matters: the eight-second lock applies per generation, and Extend appends further footage to a clip previously generated with Veo.
In the picker's Extend mode, Veo 3.1 appends roughly seven seconds per run for up to around twenty runs, with output matching the source clip. So "eight seconds" and "past a minute" are both true and describe different operations.
Veo 3.1 Fast is also in the Extend list. Veo 3.1 Lite isn't. So Lite loses references, 4K and extension — three things rather than two.
Lite loses references, 4K and extension. Three things, and only the resolution is in the name.
What do they cost?
Two of the three are on the published panel, and one row disagrees with the product.
For a five-second clip, the panel lists Veo 3.1 at 667 credits for 720p and 1000 for 4K, and Veo 3.1 Fast at 167 for 720p, 200 for 1080p and 500 for 4K.
Two problems with that. The Veo 3.1 row has no 1080p figure, though the picker offers 1080p. And Veo 3.1 Lite isn't listed at all.
What the figures do suggest, if the 720p comparison holds, is that Fast is roughly a quarter the cost of Veo 3.1 for identical settings — which would make it the obvious default rather than a tier you'd choose occasionally.
Where this falls short. That's a large enough gap to be worth verifying rather than assuming. The authoritative figure is the cost shown before you render, which appears per model.
So which should you use?
Three cases, and the first covers most work.
Almost always, Veo 3.1 Fast
Identical settings to Veo 3.1, in the Extend list, and its description says it's quicker. If the published costs are right it's also substantially cheaper. There's no setting you give up.
Veo 3.1 when you have a specific reason to prefer it
The picker exposes no capability advantage, so the reason would be output quality — which isn't a setting and isn't something we've measured. Worth testing on your own work rather than assuming.
Veo 3.1 Lite only for standalone shots
No references, no 4K, no extension. Fine for a single shot with nothing to maintain, and unusable for anything with a recurring character. The 4–8 second slider is its one advantage.
All settings read from Hexcoded's Creative Studio picker in September 2026, all three models observed individually. Credit figures from the published render costs panel, which omits a 1080p figure for Veo 3.1 and doesn't list Veo 3.1 Lite. Settings and costs change with model versions. The cost shown before you render is the authoritative figure.
- Veo 3.1 Fast has identical settings to Veo 3.1. Same lock, same 4K, same three references
- Its description says "faster Veo, same sound and scene extension," and the picker agrees
- Veo 3.1 Lite has no references section at all. Not a lower ceiling — an absent mechanism
- Lite also loses 4K and loses extension. Three things, and only one is in the name
- Lite gains a 4–8 second slider. It's the only Veo model where you choose the duration
- Never develop on Lite and deliver on Veo 3.1. There's no reference to carry forward
- The eight-second lock is conditional — the picker says it's required for the current resolution and references
- All three offer only 9:16 and 16:9. No Veo model produces 1:1, 4:3 or anything unusual
Nothing the picker exposes. Both are locked to eight seconds, both offer 720p, 1080p and 4K, both take three references, both accept images or clips, both support start and end frames, and both appear in Extend. Fast's own description says "faster Veo, same sound and scene extension."
Three things. References entirely — there's no references section in its panel. 4K. And extension, since it isn't in the Extend list. It gains a 4–8 second duration slider rather than the eight-second lock.
The picker's own message says the lock is "required by Veo for the current resolution / references," so it's tied to the configuration rather than absolute. Google's documentation describes Veo 3.1 as generating eight-second videos at 720p, 1080p or 4K, which matches.
Through Extend, which appends footage to a clip previously generated with Veo — roughly seven seconds per run for up to around twenty runs. So "eight seconds" and "extendable past a minute" are both true and describe different operations. Veo 3.1 Lite isn't in the Extend list.
Veo 3.1 Fast for almost everything — identical settings, in the Extend list, and quicker by its own description. Veo 3.1 if you have a reason to prefer it on output quality, which isn't a setting. Veo 3.1 Lite only for standalone shots with nothing to maintain.
Two — 9:16 and 16:9. All three, identically. That's the narrowest range on the roster alongside Gemini Omni Flash and LTX-2.3 Fast, so no Veo model produces 1:1, 4:3 or anything unusual.
Three tiers, one panel each
Duration, resolution, references and aspect ratios visible per model before you generate, with the cost shown alongside. Eighteen video models on one credit balance.
Open Creative StudioMore on model capability, access and rights in Models.