Answer · Video
What AI models does HeyGen use?
HeyGen runs on Avatar III (HeyGen), Avatar IV (HeyGen), Avatar V (HeyGen), ElevenLabs voices (ElevenLabs), HeyGen Video (HeyGen), Nano Banana (HeyGen), Seedance 2.0 (HeyGen), Seedance 2.5 (Seedance), Starfish Voices (HeyGen), VEO 3.1 (HeyGen) and Video Agent (HeyGen), and routes requests between them.
- Models used
- 11
- Primary model
- Avatar III
- Public API
- Yes
- Last checked
- 2026-11-05
Model claims are labelled by how we know them: Avatar III — disclosed, Avatar IV — disclosed, Avatar V — disclosed, ElevenLabs voices — disclosed, HeyGen Video — disclosed, Nano Banana — disclosed, Seedance 2.0 — disclosed, Seedance 2.5 — disclosed, Starfish Voices — disclosed, VEO 3.1 — disclosed and Video Agent — disclosed. "Disclosed" means the vendor says so in public; "inferred" means it was derived from documentation, headers or release notes.
Context window: n/a.
Other stack signals: SAML/SSO, SCIM, SOC 2 Type II, GDPR, CCPA, Zapier, Make, n8n and Hubspot.
Cite this answer
Tomorrow. “What AI models does HeyGen use?” Tomorrow AI & Emerging Tech Index, AlienSquad, updated 2026-11-05. https://tomorrow.aliensquad.ai/q/what-models-does-heygen-use
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