What "pay-as-you-go" actually means here
"Pay-as-you-go" is one of the most abused phrases in API pricing, so here is the concrete definition this page is built on. You buy a one-time credit pack — $9.99, $37.50, or $79.99 — that charges your card exactly once and never auto-renews. Each API call deducts a fixed, published credit cost from your balance. There is no monthly fee, no platform fee, no per-seat charge, and no minimum spend. When the pack runs out, nothing happens: your integration keeps working the moment you top up, and nobody bills you in the meantime.
Two guarantees make this usable in production. First, credits are valid for at least 30 days from grant or purchase (after that, our Terms apply — balances may be adjusted, and in practice usability is often extended), so there is no end-of-month reset quietly deleting what you paid for. Second, credits are deducted when a generation starts and automatically refunded if it fails, so a flaky prompt or a safety rejection never costs you money.
Price-per-video math: every model, every tier
All prices resolve to one number: cost per credit. One-time packs run $0.229–$0.250 per credit; subscriptions run $0.213–$0.256. Here is what each tier actually buys:
| Tier | Price | Credits | Per credit | 8s Fast videos |
|---|---|---|---|---|
| Basic pack (one-time) | $9.99 | 40 | ~$0.250 | 4 |
| Hero pack (one-time) | $37.50 | 150 | ~$0.250 | 15 |
| Studio pack (one-time) | $79.99 | 350 | ~$0.229 | 35 |
| Basic subscription | $9.99/mo | 39 | ~$0.256 | 3 |
| Pro subscription | $37.50/mo | 160 | ~$0.234 | 16 |
| Studio subscription | $79.99/mo | 375 | ~$0.213 | 37 |
Multiply by the per-model credit cost and you get the real price of a single 8-second video with audio — the range below spans the cheapest per-credit tier (Studio subscription) to the most expensive (Basic pack):
| Model (8s, with audio) | Credits | Cheapest tier | Priciest tier |
|---|---|---|---|
| Veo 3.1 Lite, 720p | 3 | ~$0.64 | ~$0.75 |
| Veo 3.1 Lite, 1080p | 5 | ~$1.07 | ~$1.35 |
| Veo 3 Fast, 720p/1080p | 10 | ~$2.13 | ~$2.50 |
| Veo 3 Quality, 720p/1080p | 26 | ~$5.55 | ~$6.50 |
| Veo 3.1 Fast, 4K | 22 | ~$4.69 | ~$5.94 |
| Veo 3.1 Quality, 4K | 38 | ~$8.11 | ~$10.26 |
Shorter clips scale down: 4-second videos cost 0.5x and 6-second videos 0.75x of the 8-second price, so a 4s Lite clip starts at about $0.43. For prototyping, that changes behavior: you can iterate on Lite, then re-render the winning prompt on Quality. Full plan details are on the pricing page.
Pay-as-you-go vs subscription-locked video APIs
Most AI video APIs make you predict your usage before you have any: pick a tier, overpay for capacity you don't use, or hit a ceiling mid-launch. Going direct to Google is usage-based but priced for enterprises — Vertex AI lists $0.75 per second of Veo output (on top of your cloud setup), and other resellers hover around ~$0.50 per second plus a monthly fee (figures as of 2026). Per-second, Veo3Gen works out to roughly $0.02 (Lite) to $0.07–$0.10 (Fast), and about $0.18–$0.27 even on the top Quality model:
| Provider | Cost per second | Pricing model | Commitment |
|---|---|---|---|
| Veo3Gen API | ~$0.02 (Lite) – $0.10 (Fast) | Pay-as-you-go credits | None — one-time packs |
| Google Vertex AI | $0.75 | Usage-based, on top of cloud costs | GCP account + setup |
| Other API resellers | ~$0.50 + monthly fee | Subscription tiers | Monthly plan required |
The output is not a compromise: these are the same Google Veo 3 and Veo 3.1 models, with native audio and up to 1080p (4K on Veo 3.1). What differs is the billing wrapper. For a deeper line-by-line comparison against Google's own pricing, see our cheap Veo 3 API breakdown and the Vertex AI cost comparison.
Run the math on your own volume — a $9.99 pack is the whole experiment.
Get API AccessWhy this model fits early-stage products
Subscription pricing punishes exactly the phase where video features get built. Before launch, your usage is near zero — but a subscription bills you anyway. After launch, usage is spiky and unpredictable — but tiers force you to pre-commit. Pay-as-you-go removes both failure modes:
Build and test without a bill. Sign-in is Google OAuth with no credit card required, so you can wire up the integration and validate output quality before spending anything. Your first real cost is a $9.99 pack — 40 credits, enough for 3 Fast videos or 40 Lite drafts.
Scale linearly, model simply. Cost per generated video is a constant, so financial modeling is one multiplication: videos per month times per-video price. No sudden tier jumps, no overage surprises — when volume grows, you either buy bigger packs or switch to a subscription for the ~25–35% per-credit discount.
Experiment at near-zero risk. A speculative feature that gets little traction costs almost nothing to keep alive, because idle months cost $0. And since failed generations are refunded, even aggressive prompt experimentation only bills for delivered output.
Quick start: from zero to first video
Mint an API key
Sign in with Google on the API page and create a key — no credit card required to get started.Read the quick-start docs
The API documentation covers authentication, the generation endpoint, model options (Lite / Fast / Quality), and per-call credit costs. A first request is a single POST with your prompt and model choice.Prototype on Lite, ship on Fast or Quality
Iterate at 3 credits per draft, then re-render winners at 10 (Fast) or 26 (Quality). If you're new to the API, the getting-started guide walks through a full integration.Buy credits only when you need them
Grab a one-time pack on the pricing page when you're ready for volume — it never auto-renews, and credits stay valid at least 30 days from purchase (see Terms).
Frequently asked questions
What does pay-as-you-go mean for an AI video API?
How much does one AI video cost through the API?
Do the credits expire?
Is there a monthly fee or usage minimum?
Am I charged for failed generations?
How do I get an API key and start generating?
Start building with the pay-as-you-go Veo 3 API
One-time packs from $9.99, credits valid 30+ days, failed generations refunded. Mint a key and send your first request today.
No credit card required — sign in with Google and start in seconds.