Humanlike AIThe model index

Side by side

Synthesia vs HeyGen Interactive Avatar

Up to 4 models, normalised onto the same cost basis and scored through the lens you pick.

Synthesia logo
Synthesia
Synthesia
HeyGen logo
HeyGen Interactive Avatar
HeyGen
Cost of talking
Per minuteNot conversational$0.500Estimate
Per hour—$30.00
30-min interview—$15.00
List pricePlan-basedEstimate$0.5/minEstimate
Recruitment fit
Overall55/10072/100
VerdictExcellent for onboarding and policy video; structurally unable to do live screening.Good for employer-brand content, weaker as a live interviewer than Tavus.
Best for
Onboarding modulesCompliance trainingCareers-page brand film
Employer-brand videoMultilingual job adsOnboarding content
Watch out for
  • No real-time path at all
  • Credit pricing makes per-candidate cost awkward to model
  • 1.2s latency is noticeable in live conversation
  • Stock faces can read as generic to candidates
What it animates
Coverage
FaceFullFull
Lip-syncFullFull
Upper torsoFullFull
HandsPartialPartial
Full bodyFullPartial
Capabilities
Modalitiesavatar, videoavatar, video
Context window——
VariantsStudioInteractive, Studio (rendered)
On HumanLikeNot yetNot yet
Published benchmarks
Lip-sync accuracy94%Estimate92%Estimate
Time to outputminutesEstimate1200 msEstimate

Cost per hour assumes 150 wpm and a 40% AI speaking share. Hover a figure for its full derivation.