VEO 3.1 Extend Video: continue the keeper, do not roll a new identity (7s, 720p, 40cr)

Use VEO 3.1 Extend Video only when the last frame is already a keeper. Extension spends on more seconds, not on a different idea.

The catalog row is Google, category extend-video, native audio on, output listed at 720p, duration locked to 7s, 40 credits. The description is one sentence: "Extend video duration with VEO 3.1." That is a continuation job. It is not VEO 3.1 generating a new identity from a prompt. If the outgoing frame is already wrong — wrong face, wrong product, wrong camera height — seven more seconds of that wrongness is the whole purchase.

The 7-second increment

This row does not offer a menu of lengths. supports_durations is the literal 7s. You are buying one seven-second continuation per run, at 16:9, 9:16, or auto, with native audio. Qualities on the record include 720p and 1080p; the listed max output is 720p. Do not write a three-act sequel into the prompt and hope the model compresses it. Write the next beat that can actually play in seven seconds from the last frame you kept.

The agent surface for the same job is extend a video. The finishing route is extend a video's length. Neither of those changes the catalog: this Google row still meters 40 credits with audio on. The extend glossary is the mechanic. Best video extender is the rest of the shelf.

Spend on more seconds, not a new take

A keeper is a clip whose last frame you would still ship if the video ended there. Extend is how you buy time past that frame. It is not how you:

• swap the talent
• restage the product
• change the lens language
• invent a second scene because the first one missed

Those are a new generate on VEO 3.1, or a different family if Veo is the wrong physics. Continuation should read as finishing a sentence. Subject position, lighting, and camera height have to match the outgoing frame or the join will read as a cut even when the words in the prompt are correct.

Google's VEO roster is larger than this one row. Flow users in particular confuse "I can keep generating in the Veo surface" with "I am extending." Generating again rolls identity. Extending spends 40 credits to continue the identity you already approved. If you have not approved it, stop. Re-roll the source on the generator, then come back here.

When the last frame is not a keeper

Open the last frame. If you would not freeze it as a still, do not extend it.

Common failure: the generate is almost right, so you extend hoping the extra seven seconds will drift into the shot you wanted. Drift is not a feature of this row. The model continues from what is there. A product that is already melting will keep melting. A face that already slipped will keep slipping. You will have paid 40 credits for a longer miss, with native audio attached to the miss.

If you need a different idea, leave the extend category. If you need more time on a take that already holds, this is the row: 7s, 720p, audio on, image not required (the input is the clip, not a still). Google's provider page is the family map. This page is only the extend SKU.

FAQ

Can I request 10s or 15s on this row?

Not on the listed durations. The catalog exposes 7s only. If you need a longer finished piece, chain another 7-second extend after you have inspected the new last frame, or cut the keepers together. Asking this SKU for a length it does not list is how you waste the 40 credits.

Does extend include native audio?

Yes. The record sets audio: true. You are continuing picture and soundtrack together. If the source audio is already wrong, extending it is how that wrong track gets seven more seconds. Fix or replace audio on the source before you buy the increment.

Is this the same as generating another Veo clip?

No. VEO 3.1 invents a take. This row continues a take. Use the generator when identity is still open. Use VEO 3.1 Extend Video when identity is closed and you only need time.

What if 720p is too soft for delivery?

Then this is the wrong finishing step, not a reason to skip the keeper test. The listed max is 720p. Upscale or recut after you have a continuation that actually holds. Do not pick a different idea and call it an extend because the resolution disappointed you.