Studio benchmark: 225 credits per 10-second video at 720p (1080p: 330, 4K: 660), in 9:16 or 16:9. About $1.58 on the $7 pack or $1.35 on the $300 pack. Reference video changes the price; see the full grid on /prices. Other Lab models and Workflows vary; check the estimate before you run.
HeyGen if a person presents; InVideo if footage assembles. HeyGen's avatars are the category benchmark; InVideo's breadth covers everything that isn't a talking head — at the cost of you doing the directing.
Side by side
| HeyGen | InVideo AI | |
|---|---|---|
| Core object | The presenter | The assembled video |
| Avatar quality | Benchmark | Basic |
| Stock + models | No stock focus | Stock + Veo 3.1 tiers |
| Long-form | No | Yes |
| Ad workflow | Script it yourself | Script it yourself |
The question that actually decides it
Not "which is better" — "what's your job?" Match the tool to the output shape you need weekly, the person who'll operate it, and what you pay in months you don't produce. Most regret in this category is a job mismatch, not a quality gap.
Who should pick HeyGen, and who should pick InVideo AI?
Pick HeyGen if a person carries the video. Its avatars are the category benchmark, and the whole product centers on the presenter. Accept the trade shown in the table: no long-form, and you write the script yourself.
Pick InVideo AI if the video assembles from footage. Stock plus Veo 3.1 tiers cover everything that is not a talking head, and long-form is on the menu. The cost is your time: you do the directing, and the avatars are basic.
Pick neither if the subject of the ad is a product rather than a person or a montage. That case is below.
What does the per-video math look like?
The $35 pack contains 5,100 credits and covers 22 full 10-second Studio videos at 225 credits each, with 150 credits left over. Credit consumption costs about $1.54 per video; the full pack is paid upfront and unused credits never expire.
Weighing production costs against potential value? Explore the research on product video and buying decisions, with sources and video examples.
When does switching make sense?
Switch when the job has drifted. If your HeyGen videos open on a presenter and then cut to product shots you sourced somewhere else, the presenter is framing, not substance. If your InVideo AI timelines exist to showcase one item per video, you are hand-assembling what a URL-first flow automates. Both tools make you script the ad yourself — that is the one row of the table where they agree. When writing the script is the bottleneck, a tool that builds the brief from the product URL removes the bottleneck instead of easing it. Test cheaply: run one week in parallel and count minutes per finished ad, not only dollars.
The third option
If the job behind this comparison is product video ads, there's a route neither takes: start from the product URL. v4v extracts the product data, builds the brief, and generates directed 9:16 ads on Seedance 2.0 / Kling 3.0 / Veo 3.1 at ~$1.58 per video, pay-per-use, no subscription. Different category than either tool above — which is sometimes exactly the point.
The third option: start from the product
If the job is product ads, skip the script — paste a URL and judge the output.
From $7 · no subscription, ever · credits never expire
FAQs
Can I use HeyGen and InVideo AI together?
Teams do — they solve different halves. Check total subscription load against actual monthly output first.
Which is cheaper?
Depends on utilization — both are subscriptions, so effective per-video cost is price ÷ videos you actually make. Run last month's real numbers.
Can HeyGen make long-form videos?
No — in this pairing long-form is InVideo AI's side of the table. HeyGen centers on the presenter clip.
Do I still have to write the script?
Yes, on both — each tool has you script the ad yourself. v4v builds the creative brief automatically from the pasted product URL instead.
Which is better for product demo ads?
Neither is built around the product: HeyGen renders a presenter, InVideo AI assembles footage you direct. If the product itself is the subject, a URL-to-video flow like v4v's fits the job better.
What do AI avatars and clips cost without a subscription?
A 10-second Studio video uses 225 credits, about $1.58 on the $7 pack. That pack covers 4 full Studio videos with 100 credits left. Lab models and Workflows vary by model and settings; check the estimate before you run. Credits never expire.
Facts checked July 16, 2026. Competitor claims from public pricing pages; verify before relying on them.