Video model
Veo 3.1 video generator: run Veo 3.1 Fast in your browser
SynthPulse runs one Veo configuration — Veo 3.1 Fast — for text-to-video and image-to-video at 720p or 1080p, 4 or 8 seconds. The exact credit price of the clip sits on the generate button before you press it.
Veo 3.1 Fast pricing and specs
| Veo 3.1 Fast · 720p | 150 credits per clip. Text-to-video or image-to-video, same price either way. |
|---|---|
| Veo 3.1 Fast · 1080p | 163 credits per clip — the only thing that changes the price of a Veo render here. |
| Clip length | 4 or 8 seconds. Length does not change the price: an 8-second Veo clip costs the same 150 credits at 720p as a 4-second one. |
| Output options | 720p or 1080p · 4 or 8 seconds · 16:9 or 9:16 · start from a prompt, or from a still image you upload. 1:1 is not offered for Veo. |
| Which Veo you get | Veo 3.1 Fast, and only that. The standard Veo 3.1 and Veo 3.1 Pro tiers are not available on SynthPulse — if your shot needs them, generate elsewhere. |
| What you need | A browser and a SynthPulse account. No Google Cloud project, no Veo API key, no waitlist, nothing to install. |
What Veo 3.1 Fast is actually for
Worth the credits when
- The take has to run the full eight seconds. Eight costs the same 150 credits as four here, and every other video model in the studio charges double for the second half.
- The shot has to be heard. Veo is the only model here whose request does not carry a flag switching audio off.
- You want 1080p without a jump in price. 1080p is 163 credits against 150 at 720p, a difference of 13 rather than a multiple.
- The prompt is written plainly. Fast follows a clearly ordered shot list more literally than it interprets a crowded one.
Look elsewhere for
- Square delivery. Veo is the one video model on the site whose aspect list leaves 1:1 out — here it takes 16:9 or 9:16 and nothing else. Kling 3.0 Pro, Seedance and MiniMax H3 all render square.
- A single unbroken take longer than eight seconds. Four and eight are the only two lengths this model accepts.
- Cheap iteration. Four attempts on Veo cost more than seventeen on Seedance 1.5 Pro, which is the sensible place to be wrong.
- Standard Veo 3.1, or Veo 3.1 Pro. Neither is integrated, and no combination of settings on this site reaches them.
- Long, densely specified prompts. Fast is where the family gives ground, both on crowded instructions and on fine detail held across the whole clip.
- Music videos assembled in the workflow builder. That picker takes Kling and Seedance ids only.
One tier, named
SynthPulse runs one Veo configuration. It is Veo 3.1 Fast, the quicker and cheaper tier of the 3.1 generation, and the pricing table carries exactly one Veo row to match. The standard Veo 3.1 tier is not wired in. Veo 3.1 Pro is not wired in. No combination of settings on this site reaches either of them.
That belongs at the top of the page rather than in a footnote. "Veo 3.1" is the thing people search for, Fast is the thing they would actually get here, and the gap between those two is where a page like this usually starts lying. If your shot needs the heavier tiers, generate it somewhere that has them.
One structural difference, since it explains a couple of the limits below: every other video model in the video studio goes out through a single generic job endpoint, and Veo does not. It has its own request shape, where the direction is an explicit field rather than something inferred from whether you attached an image. Mostly an implementation detail. The one place it surfaces is that text-to-video and image-to-video are submitted and priced identically.
Eight seconds for the price of four
The Veo row carries a resolution multiplier and no duration multiplier at all. In practice that means 150 credits at 720p, 163 at 1080p, and that is the whole price list. Four seconds and eight seconds resolve to the same number.
Every other video model here bills by the second. Kling 3.0 Pro is 140 credits for four seconds at 720p and 280 for eight; Seedance 2.5 goes from 630 to 1,260. Veo goes from 150 to 150. So eight seconds is the sane default on this model unless you specifically want a shorter cut, and four-second Veo takes are poor value: at that length Kling is cheaper, and Grok Imagine 1.5 is under a third of the price.
Worth being precise about where the flat price comes from, because it is unusual enough to sound like marketing. It is a property of how this row is configured in our pricing table, not a promise anyone has made about Veo itself. If the row is ever repriced per second, the number on the generate button moves with it, and that number is produced by the same function the server charges with.
The shape of what it takes
720p or 1080p. Four or eight seconds. 16:9 or 9:16. There is no 1:1 for Veo, so square delivery means Kling 3.0 Pro, Seedance or MiniMax H3. Every video model on the site takes 1:1 except this one.
Either direction, same price: start from a prompt, or upload a still and let the clip start from that frame. The studio forwards one reference image, so this is not a model you steer with a mood board of five stills. Pick the frame that decides the shot.
Quantity goes up to four clips per submission and each is charged in full, so there is no batch rate hiding in there. Veo is also absent from the music-video workflow builder, whose model picker accepts Kling and Seedance ids only. A Veo clip is something you cut into a sequence yourself.
The prompt is also an audio brief
Kling's request leaves here with sound switched off. That is deliberate, and it is the tier its credit price is based on. Veo goes out through a different endpoint that has no such flag, and Google documents Veo 3.1 as generating audio alongside the picture. We can verify our half of that and not the model's, so treat a Veo take as probably carrying sound and check the first one before you build an edit around it.
Which makes a clause about sound worth writing here and worth deleting everywhere else in the studio. Say what should be audible: no music, only rain on the glass and one car in the distance. For dialogue, put the line in quotation marks and name who says it and how. A prompt that says nothing about audio gets whatever the model infers from the picture, and what it infers is usually flat room tone.
The picture half wants a shot list rather than a wish. Subject, action, camera move, framing, light, grade, in that order, and one action per clip. Asking for a cut inside eight seconds produces a smear where the cut should be. The full comparison with Kling 3.0 Pro works through which model wins which shot, with every resolution and duration priced out.
Before you spend 150 credits on a guess
This is not the model to discover a shot on. Seedance 1.5 Pro is 35 credits for a four-second 720p take, roughly a quarter of a Veo clip. Find the composition and the movement there, then re-run the prompt you settled on here, once you know what you are asking for.
Credits come from a monthly plan or a one-time pack, both on the pricing page. They are spent per accepted render, and a generation that fails on the provider's side is refunded to the balance it came from automatically.
Finished clips land in your library with the prompt and settings still attached, so a 720p take you liked can be sent back through at 1080p without retyping anything. Nothing you generate is visible to anyone else unless you publish it, and published work is what fills the public gallery.
Four prompts written for the two things this model does differently
Veo is the one model in the studio where a line about sound is not thrown away, and the one where eight seconds costs no more than four. So these are written loud and written long. Each is 150 credits at 720p, whichever of the two lengths you pick.
- Dialogue
A woman in a rain jacket stands under a shop awning, looking off-camera to the right. Without turning, she says quietly: "They were never going to call." Slow handheld push in, waist to chest. Overcast daylight, no colour grade. Audio: her voice close and dry, steady rain behind her, no music.
Put the line in quotation marks, say who says it and how, then state the rest of the mix. The "no music" clause does more work than it looks like it should.
- Eight seconds, two beats
A cast-iron pan on a gas burner, side-on and close. For the first three seconds nothing moves but the flame. Then a hand enters from the left and sets a single scallop into the pan. Camera holds. Audio: burner hiss throughout, a hard sear on contact, no music.
The second beat is free here, because eight seconds costs what four costs. Say when it starts and say what holds still until then, or the model spreads one action thinly across the whole clip.
- Camera language, no subject description
Static wide of an empty hotel corridor at night, lit only by the wall sconces. Slow dolly forward down the centre line at constant speed, no acceleration, stopping before the far door. Nothing else in frame moves. Audio: air-conditioning hum, one distant lift chime, nothing else.
Name the move, its speed and where it ends. "Cinematic" is not a camera instruction, and if you leave the camera out Veo will choose one for you.
- From a still
Keep the subject, framing and lighting of the reference image exactly as they are. The only movement is the curtain behind her lifting slightly and settling back. No camera movement at all. Audio: a quiet room, faint traffic through the glass, no music.
Image-to-video costs the same 150 credits as text-to-video, but the prompt's job changes. Name what may move and pin everything else, or the model reads your still as a suggestion.
The eight-second column is the whole argument
Credits for one clip, from the same table the generate button quotes. Read the two 720p columns against each other: on every row except this one, the eight-second clip is exactly twice the four-second clip. That is also why Veo looks unremarkable in the first column and hard to beat in the second.
| 720p · 4s | 720p · 8s | 1080p · 8s | |
|---|---|---|---|
| Veo 3.1 Fast | 150 | 150 | 163 |
| Kling 3.0 Pro | 140 | 280 | 360 |
| MiniMax H3 | 160 | 320 | not offered |
| Seedance 1.5 Pro | 35 | 70 | 151 |
| Grok Imagine 1.5 | 45 | 90 | not offered |
| Seedance 2.5 | 630 | 1,260 | 2,280 |
Veo 3.1 questions
How much does Veo 3.1 cost on SynthPulse?
Veo 3.1 Fast is 150 credits for a clip at 720p and 163 credits at 1080p. Clip length does not change the price — 4 seconds and 8 seconds cost the same — and image-to-video costs the same as text-to-video. There is no per-seat fee and no minimum spend; credits come from a monthly plan or a one-time pack.
What is the difference between Veo 3.1 and Veo 3.1 Fast?
Fast is the quicker, cheaper tier of the same Veo 3.1 generation: shorter render times and a lower price per clip, with some ground given up on very long, densely specified prompts and on fine detail sustained across the full clip. SynthPulse runs Veo 3.1 Fast only — the standard Veo 3.1 tier and Veo 3.1 Pro are not available here, and we would rather say so than let you find out after paying.
How do I use Veo 3.1?
Open the video studio, pick Veo 3.1 Fast from the model list, describe the shot you want, then set resolution (720p or 1080p), length (4 or 8 seconds) and aspect ratio (16:9 or 9:16). Upload a still image first if you want image-to-video instead of text-to-video. The button shows the exact credit cost of that combination before you submit, and the finished clip appears on the same screen when the render lands.
How do I write a good Veo 3.1 prompt?
Write it as a shot list, not a wish: subject, what the subject does, how the camera moves, lens and framing, lighting, then mood. Name one action per clip — Veo holds a single beat far better than three stacked ones across four to eight seconds. Be concrete about light ("low golden backlight, long shadows") and about camera language ("slow dolly in", "handheld tracking shot"). If a specific face, product or location has to match, upload a still and use image-to-video rather than describing it.
Can Veo 3.1 make a clip longer than 8 seconds?
Not here. The duration picker offers 4 and 8 seconds for this model and nothing above that. For a single unbroken take of 12 seconds, Kling 3.0 Pro is the model on SynthPulse that accepts it, at 420 credits for 12 seconds at 720p. Otherwise the usual answer is two eight-second Veo takes cut together, which at the same price as two four-second takes is less painful than it sounds.
Is Veo 3.1 free here?
No. Every Veo render calls Google's paid model through our provider, so it always spends credits, and there is no free generation allowance on SynthPulse at the moment. The account itself is free and needs no card, so you can open the studio, build your prompt and read the exact credit price of a clip before deciding to buy credits.
Is there a Veo 3.1 API here?
No. SynthPulse is a browser workspace rather than a developer API: you sign in, generate, and download the file. There is no key to issue and no endpoint to call. If you need Veo programmatically, that comes from Google Cloud rather than from us.
What happens if a Veo generation fails?
The credits go back. A render that ends in failure is refunded automatically to the balance it was charged from, with no support ticket and no manual step. Finished clips are kept in your library, where you can play them back or download the file, and nothing you generate is public unless you choose to share it.