HeyGen Avatar IV

Name: HeyGen Avatar IV
Brand: HeyGen
Price: 0.0500 USD
Availability: InStock

model id: heygen/avatar-iv

Text in → Video out

No live Playground for this model yet

Talking avatars take a catalog avatar (or your own photo) plus a script and a voice — not a text prompt — via POST /v1/avatars/videos. Switch to the API tab above for a ready-to-run example, or see the Talking avatars guide.

Price

From $0.05 / second

per second of generated video — shown for photo avatars and your own photo; digital twins cost more (below). Held up front, settled on the real video length

Avatar type	720p / 1080p	4K
Photo avatar / your own photo	$0.05 / second	$0.0667 / second
Digital twin	$0.0667 / second	$0.0833 / second

+ VideoRouter platform fee: 2.5% of provider cost (≈ $0.0013) — billed as its own line, never blended into the price above.

# 1. pick an avatar and a voice (voices filter by language)
import requests
H = {"Authorization": "Bearer llmr_sk_..."}
avatar = requests.get("https://videorouter.sh/api/v1/avatars?limit=1", headers=H).json()["data"][0]
voice = requests.get("https://videorouter.sh/api/v1/avatars/voices?language=English&limit=1", headers=H).json()["data"][0]

# 2. create (async: poll GET /v1/avatars/videos/{id}, or pass webhook_url)
job = requests.post(
    "https://videorouter.sh/api/v1/avatars/videos", headers=H,
    json={"model": "heygen/avatar-iv", "avatar_id": avatar["id"],
          "voice_id": voice["id"],
          "script": "Hello, welcome to the show."}).json()
print(job["id"], job["status"])  # queued -> in_progress -> completed

// 1. pick an avatar and a voice
const H = { Authorization: "Bearer llmr_sk_...", "Content-Type": "application/json" };
const avatar = (await (await fetch("https://videorouter.sh/api/v1/avatars?limit=1", { headers: H })).json()).data[0];
const voice = (await (await fetch("https://videorouter.sh/api/v1/avatars/voices?language=English&limit=1", { headers: H })).json()).data[0];

// 2. create (async: poll GET /v1/avatars/videos/{id}, or pass webhook_url)
const job = await (await fetch("https://videorouter.sh/api/v1/avatars/videos", {
  method: "POST", headers: H,
  body: JSON.stringify({ model: "heygen/avatar-iv", avatar_id: avatar.id, voice_id: voice.id,
    script: "Hello, welcome to the show." }),
})).json();

# list avatars and voices, then create
curl https://videorouter.sh/api/v1/avatars?limit=1 -H "Authorization: Bearer llmr_sk_..."
curl "https://videorouter.sh/api/v1/avatars/voices?language=English&limit=1" -H "Authorization: Bearer llmr_sk_..."

curl https://videorouter.sh/api/v1/avatars/videos \
  -H "Authorization: Bearer llmr_sk_..." \
  -H "Content-Type: application/json" \
  -d '{"model": "heygen/avatar-iv", "avatar_id": "", "voice_id": "", "script": "Hello, welcome to the show."}'

HeyGen Avatar IV

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