Veo 3.1 (Quality) on imaginary.app: specs, credit costs and honest pricing

What Veo 3.1 is, and why we call it Quality

Veo 3.1 is Google DeepMind's video model with synchronized audio: the same generation produces the picture plus dialogue, sound effects and ambient sound. Google sells three versions of it. Veo 3.1 is the full-quality model; Veo 3.1 Fast and Veo 3.1 Lite trade some quality for lower price. Our generator shows them as three buttons, Fast, Quality and Lite, so "Quality" on imaginary.app means the full Veo 3.1 model and nothing else.

It replaced Veo 3, which Google retired on June 30, 2026. There is no "Veo 4": Google's newer video line is Gemini Omni, which we don't offer. Our explainer on Veo 4 rumours covers that, and Veo 3.1 vs Gemini Omni Flash compares the two.

If you're choosing between the three Veo 3.1 versions, the short version is: Quality for final renders and anything with dialogue, Fast for most everyday work, Lite for drafts. The Lite vs Fast vs Quality comparison goes deeper.

Veo 3.1 specs: what Google offers and what you can use here

Google's Cloud documentation lists more options than any single app exposes. This table separates what the model supports from what our web app and API let you use today.

If you need reference images or clip extension specifically, Google's own Cloud API is the place to get them today. For everything in the right-hand column, you don't need a Cloud project.

What Veo 3.1 costs on imaginary.app

You pay in credits. Credits cost between $0.21 and $0.25 each, depending on which pack or plan you buy; the smallest one-time pack is $9.99. Here is every Quality combination, straight from our pricing catalog:

• 720p and 1080p cost exactly the same, so there is no reason to pick 720p to save credits.
• Audio doubles the price: an 8-second 1080p clip is 13 credits silent and 26 with audio. 4K raises it again.
• 4K with audio is the top of the range at 38 credits ($8.11–$9.49) for 8 seconds.
• The same 8-second 1080p clip with audio on Fast is 10 credits, so Quality costs about 2.6 times as much as Fast.
• Image-to-video and first-and-last-frame cost the same as text-to-video.

To price a whole project, use the Veo 3.1 cost calculator. Credits are taken when a generation starts and returned automatically if it fails.

Honest price comparison: Google Cloud, Flow and us

Google Cloud lists Veo 3.1 at a price per "count", which resellers bill as one second of video. Read that way, multiply by eight for the raw cost of one clip. We charge more than that:

Google Flow, Google's consumer filmmaking app, charges 100 Flow credits for a Quality video. If you use every credit of a $19.99/month Google AI Pro plan, that is about $2.00 a video, which is also cheaper than us, with the catch that Quality leaves Flow on December 5, 2026.

Who we're for

• You want Veo 3.1 Quality without creating a Google Cloud project, billing account and service account.
• You make only a few videos and would rather buy a pack once than keep a monthly subscription. The $9.99 Basic Pack (40 credits) covers 1 clip of 8-second 1080p Quality with audio, or 3 clips without audio.
• You were using Quality in Flow and need it after December 5, 2026.
• You want failed generations refunded and one API key for every model we offer.

When you should not use us

• You generate at volume and already run Google Cloud: calling Google directly at list price costs less per clip.
• You need reference images or clip extension, which we don't expose.
• You already pay for Google AI Pro or Ultra and only need Quality before December 5, 2026: your plan credits are cheaper.

The Flow retirement and the Gemini API shutdown

Two Google changes in late 2026 decide where Veo 3.1 Quality is still available:

• October 22, 2026: Google shut down the Veo 3.1 preview models on the Gemini API (the API behind AI Studio keys). Apps built on those model IDs stopped working. Details in our Gemini API shutdown guide.
• December 5, 2026: Flow retires Veo 3.1 Fast and Quality. Lite stays in Flow. See the Flow retirement guide for what changes for subscribers.

Neither change affects imaginary.app. We call veo-3.1-generate-001 on Google Cloud, where Veo 3.1 is generally available and listed as supported until “May 4, 2027 or later”.

Real Veo 3.1 Quality videos from our gallery

These were generated on Quality by imaginary.app users and shared to the public gallery. The supernova clip states its purpose ("suitable for a website hero section") and asks for a dark background and one slow camera move, which suits a background behind page text. The warriors and sock clips put sound in its own Audio: line, yet both shared files have no sound track: either With Audio was off or the model returned a silent clip. An audio line in the prompt does not switch sound on by itself.

Note that the sock clip's prompt asks for "Vertical 9:16", but orientation comes from the aspect-ratio setting, not the prompt; choose 9:16 in the generator. More prompt patterns are in the Veo 3.1 prompting guide.

How to generate a Veo 3.1 Quality video

1. 1

   Sign in

   Open the generator and sign in with Google. No credit card is needed to create an account; you buy credits on the pricing page when you need them.
2. 2

   Choose Text-to-Video or Image-to-Video

   Text-to-Video needs a prompt. Image-to-Video takes a first-frame image and an optional last frame; see the image-to-video guide.
3. 3

   Write the prompt

   Describe shot type, subject, action, setting, camera movement and style, then sound on its own line. Prompts can be up to 2,000 characters; the Enhance button rewrites a rough prompt into a fuller one, and you can undo it.
4. 4

   Pick Quality, then resolution

   Click Quality under Model, then pick 720p, 1080p or 4K. Switching models resets 4K to 1080p, so choose the model first.
5. 5

   Set aspect ratio, duration and audio

   Choose 16:9 or 9:16, then 4s, 6s or 8s, and turn With Audio on if you want sound. The credit cost appears next to the Generate Video button and updates as you change settings.
6. 6

   Generate and download

   Click Generate Video. The clip renders on our servers, so you can leave the page and find it later in My Creations. If generation fails, the credits go back to your balance.

Using Veo 3.1 Quality from the API

Developers send "model": "veo3-quality" with "modelVersion": "3.1" to POST /api/generate using a veo_ API key, then poll GET /api/status/:taskId. Credits and refunds work the same as on the web. The developer API always requires a prompt, including for image-to-video. Full request and response formats are in the API documentation, and you can create a key on the API page.