HeyGen
4.4Best for avatar realism specificallyIf the avatar side of Synthesys is what you actually use, HeyGen is the upgrade: its Avatar IV/V engine renders visibly better micro-expressions and lip-sync than Synthesys's avatar module, backed by a 1,200+ avatar library against Synthesys's 1,000+, plus 175+ language video translation. Entry runs $29/mo (Creator) — the same headline price as Synthesys Indie — but credit pricing means heavy flagship-avatar use costs more per minute than Synthesys's flatter allowance. The trade: no bundled voice-cloning-plus-dubbing-plus-video-generation suite, just the avatar layer done better.
Best for: Teams whose Synthesys usage is mostly avatar video and want the more realistic rendering engine at a comparable entry price.
Pricing: Prices verified July 2026 on heygen.com/pricing. Headline prices look cheap, but budget in credits: flagship Avatar IV/V video costs 20 credits/min, so Creator's 600 credits equal about 30 minutes of top-tier avatar footage per month.


