HeyGen’s self-serve (Pay-As-You-Go) plan lets you purchase USD balance when you need it — no monthly subscription, no commitments.
How Billing Works
When you authenticate with an API Key (x-api-key header), you are billed under the API tier. Usage is deducted from your prepaid USD wallet.
Check your balance at any time:
Pricing
Video Generation — Avatar V
Highest-fidelity engine with cross-reference-driven animation — see the Avatar V model page for engine details. Avatar V supports Digital Twins only.Video Generation — Avatar IV
Default v3 engine — see the Avatar IV model page for engine details.Video Generation — Avatar III
Dedicated photo-to-video pipeline — see the Avatar III model page for engine details.Cinematic Avatar
Flat rate per video (4–15 seconds, 720p/1080p only), not billed by duration. See the Cinematic Avatar guide.Avatar Realtime
Live streaming avatar session, billed per second of session duration (720p only). See the Avatar Realtime guide.Video Agent
HyperFrames
Billed per minute of output video; the rate scales withresolution and fps. See the HyperFrames guide.
Video Translation
Note: Proofread mode is available on Enterprise plans only.