Vendors can pay for placement. They can't buy a score.
Every Index Score comes from the same place: one identical script, rendered on each platform, graded blind on the things buyers actually compare. Some vendors pay for featured placement; we label them PARTNER, and it never moves their number. We publish every render so you can check our work.
The render process
We write one neutral 60-second script and render it through every platform using comparable settings — the same avatar style where possible, uniform lighting, no post-processing. The raw output is published on our video reviews page so you can watch exactly what we scored.
Blind scoring
Renders are scored by our panel without knowing which tool produced them, to remove brand bias. Realism and lip-sync are judged frame by frame; languages are tested by re-rendering the script in several non-English languages.
What money can and can't do
AvatarTester is reader-supported. Some links are affiliate links, and select vendors pay for featured placement — always labelled PARTNER. Neither ever changes a score, a rank, or what the renders show. See our full disclosure.