Video Generation

HeyGen Video 1.0 API

HeyGen Video 1.0 via Runware. Text-to-video or image-to-video with sound built in: spoken dialogue, ambience and effects. 5 to 30 seconds, 480p to 2K. Integrate this model via REST with endpoint docs, parameters, and code examples.

Prompting guide Compare video models Use cases

Img2Vid

Audio

Credit Cost

6.25 credits

Type

Video

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See Usage

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API Endpoint

POST

/api/v1/models/heygen-video/run

Test This Model

Run a real request through the API pipeline and inspect the exact input and output your integration will handle. Uses your credits like any API call; failed runs are refunded automatically.

LLM.txt

AI-Ready

For AI assistants

Copy this model's documentation into Claude, GPT, or any AI for instant integration help.

/llm/heygen-video.txt

OpenAPI Spec

Swagger compatible

Import into Postman, Swagger UI, or generate client SDKs in any language.

/api/openapi

Parameters

Input parameters accepted by this model

Parameter	Type	Description	Default
`prompt` required	string	Text instruction describing what to generate or edit.	-
`resolution`	enum	Output resolution. `480p768p1080p2k`	`768p`
`aspect_ratio`	enum	Output aspect ratio. `21:916:94:31:13:4`+1 more	`16:9`
`duration`	integer	Output duration in seconds. min: 5 \| max: 30	`5`
`seed`	integer	Random seed for reproducibility. Same seed + inputs yields similar results. min: 0 \| max: 4294967295	-

Use saved characters (@Name)

This model takes no reference images, so @Name of a saved character is refused (400) before anything is charged. A saved location, prop or style with a description is inserted as text. For saved characters, use a model that takes reference images, such as Nano Banana Pro or Seedream 5 for images, or Seedance 2.5 or WAN 3.0 for video.

Supported Aspect Ratios

21:9

16:9

4:3

1:1

3:4

9:16

Code Examples

Text → video: copy and paste to get started

bash

curl -X POST "https://pixeldojo.ai/api/v1/models/heygen-video/run" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A handsome man in a denim jacket holds up a coffee cup in a sunlit cafe and says: \"Best espresso in town.\" Soft cafe ambience.",
    "duration": 5,
    "resolution": "768p",
    "aspect_ratio": "16:9"
  }'

Response Format

Submit Response (202 Accepted)

json

{
  "jobId": "job_abc123...",
  "status": "pending",
  "statusUrl": "https://pixeldojo.ai/api/v1/jobs/job_abc123...",
  "creditCost": 6.25,
  "creditsRemaining": 95,
  "expiresAt": "2026-11-15T00:14:46Z"
}

Completed Response

json

{
  "jobId": "job_abc123...",
  "status": "completed",
  "output": {
    "video": "https://temp.pixeldojo.ai/pixeldojotemp/1705930123-456789.mp4"
  },
  "creditCost": 6.25,
  "expiresAt": "2026-11-15T00:14:46Z"
}

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