Video · Text to video · Image to video · Video to video
HeyGen Video 1 API
HeyGen Video 1. Text, image and multi-reference video with generated sound, 5-15 seconds up to 2K.
- Price
- From $0.10 per run from $0.02/s
- Typical time
- ~2 min
- Model id
heygen_video_1
HeyGen Video 1 runs on one varg API key and one credit balance, the same as every other model here. You pay the provider's price, with no markup.
curl -X POST https://api.varg.ai/v2/tools/video/call \
-H "Authorization: Bearer $VARG_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "heygen_video_1",
"prompt": "A barista slides a latte across the counter and smiles at the camera, warm cafe ambience.",
"aspect_ratio": "16:9",
"duration": 5
}'HeyGen Video 1 pricing
From $0.10 per run. Prices are in US dollars and are the provider's own, with no markup. HeyGen Video 1 has 3 routes: "model": "heygen_video_1" picks one automatically, or pass a route key as "model" to pin it. For the exact price of a request, send the same body to POST https://api.varg.ai/v2/estimate.
- heygen from $0.02/s
heygen:heygen-video-1/text-to-videoText to video HeyGen Video 1 text-to-video — 5-15 s, 480p / 768p / 2k, generated sound.
- Resolution 480p
- $0.02/s
- Resolution 2k
- $0.09/s
- Other
- $0.03/s
- Minimum charge
- $0.10
- Most one request can cost
- $1.35
- Typical time
- ~2 min
- heygen from $0.02/s
heygen:heygen-video-1/image-to-videoImage to video HeyGen Video 1 image-to-video — the image is the literal first frame; 5-15 s, generated sound.
- Resolution 480p
- $0.02/s
- Resolution 2k
- $0.09/s
- Other
- $0.03/s
- Minimum charge
- $0.10
- Most one request can cost
- $1.35
- Typical time
- ~2 min
- heygen from $0.04/s
heygen:heygen-video-1/reference-to-videoImage to video, Video to video HeyGen Video 1 reference-to-video — up to 9 images, 3 videos and 3 audio clips (<Picture N> / <Video N> in the prompt).
- Resolution 480p
- $0.04/s
- Resolution 2k
- $0.18/s
- Other
- $0.06/s
- Minimum charge
- $0.20
- Most one request can cost
- $2.70
- Typical time
- ~2 min
HeyGen Video 1 inputs
The JSON body of the request. Media inputs are URLs: upload a local file with POST /v2/files and pass the URL it returns. Full JSON Schema, no key needed: api.varg.ai/v2/tools/video?model=heygen_video_1
| Field | What it does |
|---|---|
model string required | heygen_video_1 picks a route automatically. To pin one, pass a route key from Pricing above. |
prompt string | — |
files array of { url } | — |
aspect_ratio string | Allowed e.g. 16:9 | 9:16 | 1:1 | 4:3 | 3:4 | 21:9 | auto |
resolution string | Quality tier. Supported by this model: 480p, 720p, 1080p. Unsupported tiers fall back to the nearest available. Allowed 480p | 720p | 1080p | 4k |
audio boolean | Native audio track request. Not supported by this model — ignored if sent. |
duration integer | Length in seconds. Supported by this model's routes: heygen: integer 5-15. A non-numeric value such as "auto" is routed to a route whose schema accepts it; when none does, the request is rejected. Allowed 5–15 |
Provider options
Optional, under provider_options.<provider>. Only the options of the provider that runs the job apply; pin a route to choose it.
provider_options.heygen
| Field | What it does |
|---|---|
prompt string | Instructions for the video to generate. At most 16,000 Unicode characters. |
mode string | Generate from the prompt alone. |
duration integer | Requested video duration in whole seconds, from 5 through 15 inclusive. Allowed 5–15 |
resolution string | Allowed 480p | 768p | 2k |
aspect_ratio string | Allowed 21:9 | 16:9 | 4:3 | 1:1 | 3:4 | 9:16 | adaptive |
prompt_enhancement string | Allowed turbo | quality | default | disabled |
Call the HeyGen Video 1 API
POST https://api.varg.ai/v2/tools/video/call with Authorization: Bearer $VARG_API_KEY. It answers 202 with a job right away.
1. Send the request
curl -X POST https://api.varg.ai/v2/tools/video/call \
-H "Authorization: Bearer $VARG_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "heygen_video_1",
"prompt": "A barista slides a latte across the counter and smiles at the camera, warm cafe ambience.",
"aspect_ratio": "16:9",
"duration": 5
}'JavaScript
const headers = {
Authorization: `Bearer ${process.env.VARG_API_KEY}`,
'Content-Type': 'application/json',
}
const res = await fetch('https://api.varg.ai/v2/tools/video/call', {
method: 'POST',
headers,
body: JSON.stringify({
"model": "heygen_video_1",
"prompt": "A barista slides a latte across the counter and smiles at the camera, warm cafe ambience.",
"aspect_ratio": "16:9",
"duration": 5
}),
})
const job = await res.json() // { id: "job_…", status: "queued" }Python
import os
import requests
headers = {"Authorization": f"Bearer {os.environ['VARG_API_KEY']}"}
job = requests.post(
"https://api.varg.ai/v2/tools/video/call",
headers=headers,
json={
"model": "heygen_video_1",
"prompt": "A barista slides a latte across the counter and smiles at the camera, warm cafe ambience.",
"aspect_ratio": "16:9",
"duration": 5
},
).json() # {"id": "job_…", "status": "queued"}2. Get the result
Poll the job until its status is completed, failed or cancelled; HeyGen Video 1 typically takes about 2 min. The result is at output.outputs[0].url.
curl https://api.varg.ai/v2/jobs/$JOB_ID \
-H "Authorization: Bearer $VARG_API_KEY"
# Poll until "status" is completed, failed or cancelled.
# The result is in output.outputs[0].urlJavaScript
let current = job
while (!['completed', 'failed', 'cancelled'].includes(current.status)) {
await new Promise((resolve) => setTimeout(resolve, 3000))
current = await (await fetch(`https://api.varg.ai/v2/jobs/${current.id}`, { headers })).json()
}
console.log(current.output?.outputs?.[0]?.url)Python
import time
while job["status"] not in ("completed", "failed", "cancelled"):
time.sleep(3)
job = requests.get(f"https://api.varg.ai/v2/jobs/{job['id']}", headers=headers).json()
print(job["output"]["outputs"][0]["url"])Or take a webhook instead of polling
Add options.webhook_url and varg POSTs the finished job to it.
{
"model": "heygen_video_1",
"prompt": "A barista slides a latte across the counter and smiles at the camera, warm cafe ambience.",
"aspect_ratio": "16:9",
"duration": 5,
"options": {
"webhook_url": "https://your-app.com/varg-webhook"
}
}From Claude, ChatGPT or Cursor (MCP)
The varg MCP server, https://mcp.varg.ai/mcp, runs HeyGen Video 1 with call_tool. Sign in with varg, no API key to paste. How to connect it
{
"tool": "video",
"input": {
"model": "heygen_video_1",
"prompt": "A barista slides a latte across the counter and smiles at the camera, warm cafe ambience.",
"aspect_ratio": "16:9",
"duration": 5
},
"wait": true
}HeyGen Video 1 API: questions
- How much does HeyGen Video 1 cost on varg?
- HeyGen Video 1 costs from $0.10 per run on varg (from $0.02/s on the cheapest route). varg charges the provider's price with no markup, from one credit balance. For the exact price of a request before you run it, send the same body to POST https://api.varg.ai/v2/estimate.
- How do I call the HeyGen Video 1 API?
- Send POST https://api.varg.ai/v2/tools/video/call with the header "Authorization: Bearer $VARG_API_KEY" and a JSON body that includes "model": "heygen_video_1". The call answers 202 with a job right away. Poll GET https://api.varg.ai/v2/jobs/{id} until "status" is "completed", then read output.outputs[0].url, or pass options.webhook_url to be called back.
- Can I use HeyGen Video 1 from Claude, ChatGPT or Cursor?
- Yes. Add the varg MCP server (https://mcp.varg.ai/mcp) to Claude, ChatGPT, Cursor or any other MCP client and sign in with varg, with no API key to paste. The agent runs HeyGen Video 1 with call_tool, passing tool "video" and "model": "heygen_video_1".
- How long does a HeyGen Video 1 request take?
- Typically about 2 min on the fastest route, by the catalog's estimate. The API answers at once with a job id, so nothing waits on an open connection while it runs.
For AI agents: this page as Markdown is varg.ai/models/heygen_video_1.md, and every model is listed in varg.ai/models/llms.txt.