---
id: "heygen/avatar-iv"
also: ["heygen/avatar-iv-20260625"]
card_usd_per_m: "0.0 in, 0.0 out, at heygen"
context: 0
max_output: 0
input: ["text", "image", "audio"]
output: ["video"]
released: "2026-08-24"
api: ["/api/v1/videos"]
endpoints: 1
gateways: "openrouter (1)"
no_training: 1
trains: 0
retains_prompts: 1
---
# HeyGen: Avatar IV

HeyGen: Avatar IV is an image-to-video model that animates a single photo into an expressive, lip-synced talking-head video. Rather than only matching mouth shapes to words, it interprets the vocal...