Review before charge
H3 validates capabilities and checks content before it creates a payable quote.
MiniMax H3 video API
Every H3 rate, upfront.
768p costs 0.03 USDC per second, all day. Pay the published amount per call, with no subscription.
MiniMax’s list price is 2.7× ours. 0.08 USD/sec official vs 0.03 USDC/sec here at 768p.
- From 0.018 USDC/s
- Price locked per order
- Failure refunds
Price version 2026-09-16.1
Published USDC Rates
Per-second billing. The 5, 10, and 15-second totals are shown for every resolution.
All day
One price at every hour
| Resolution | / sec | 5 sec | 10 sec | 15 sec |
|---|---|---|---|---|
| 480p | 0.018 | 0.09 | 0.18 | 0.27 |
| 736p | 0.03 | 0.15 | 0.3 | 0.45 |
| 768p | 0.03 | 0.15 | 0.3 | 0.45 |
| 1080p | 0.06 | 0.3 | 0.6 | 0.9 |
MiniMax’s 768p list price is 2.7× ours.
See MiniMax’s $0.08/sec list price
USDC on Base. Text, first/last frame, reference, and lip-sync use the listed resolution rate. Available combinations depend on mode.
Four ways in. One H3 video out.
Real 768p results generated through this API. Choose an input mode to see what changes—and what stays consistent.
CREATE
A focused path from idea to order.
A browser wallet is required for the interactive studio.
01 · DIRECTION
Describe the shot
0 / 12,000
No images selected.
No image selected.
No image selected.
No image selected.
No audio selected.
No audio selected.
This surface exposes every backend capability, including reference images, first and last frames, lip sync, audio, and the English prompt assistant. Use IDs returned by the upload endpoints.
02 · ORDER
Quote and delivery
Your order will appear here.
We review the input before asking for payment. Nothing is charged when a prompt is rejected.
Quoted
Exact order price
— USDC
—
- PaymentWaiting for approval
- GenerationNot started
- DeliveryNot ready
Your wallet signs one exact USDC authorization. PayAI sponsors gas. H3 starts after canonical Base inclusion while finality continues in the background.
Ready when you are.
BUILT FOR RECOVERY
Fast for users. Conservative with money.
Start on L2 inclusion
The exact USDC receipt is checked on Base. Work starts in seconds while finality is tracked.
Refund after finality
Failed work returns the disclosed net amount. A refund is signed only after the original payment is final.
Deliver from one source
The result keeps one canonical copy for 24 hours. Its protected order link supports normal retries without exposing storage.
FOR AGENTS AND DEVELOPERS
Discoverable by design.
Standard SIWX identity, x402 v2 payment headers, a canonical OpenAPI document, and durable asynchronous order IDs. No API key subscription.
POST /v1/generatex402
{
"generation": {
"prompt": "A cinematic tracking shot…",
"mode": "text",
"duration": 5,
"resolution": "1080p",
"aspect_ratio": "landscape"
}
}Connect a wallet to inspect the live API.