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HeyGenVideo

HeyGen Video

Low-cost clips with sound, from a prompt, an image or references.

video/heygen-video
Try it in StudioUse with your agent or API

HeyGen Video

Video

Price
1 credit / second
Typical time
about 14 s
Makes
Text to video, Image to video, Reference to video
Clip length
5 to 15 s

Best for

HeyGen Video turns a prompt, an image or up to nine reference images into a 5 to 15 second clip with its own sound, from 480p up to 2K, for about a cent a second.

  • Cheap trailer shots and story beats with sound.
  • In-game TV screens, billboards and menu loops.
  • Animatics for a cutscene before the final render.

Put it together

Where HeyGen Video fits in a game, with the models it works well with. Your agent runs every step.

Price

ModeModelPrice
Text to videoHeyGen Video1 credit / second
Image to videoHeyGen Video1 credit / second
Reference to videoHeyGen Video References1 credit / second

Paid from your Summer credits.

Use it from code or your agent

Sign in once with summer login. Your agent or your code then runs it with your paid credits.

npx -y summer-engine@latest login
npx -y summer-engine@latest api run video/heygen-video \
  --input '{"prompt":"a dragon circling a castle at dawn","duration":5}' \
  --download .

video/heygen-video: $0.01 per second of video. Paid from your Summer credits.

Inputs

What input takes for video/heygen-video. Send only what you need; Summer fills in tested defaults.

  • promptstringup to 4000 characters

    What happens in the clip. Needed without imageUrl.

  • imageUrlstringup to 2048 characters

    A public image URL to animate (image to video).

  • referenceImageUrlsarray of string1 to 10 items

    Reference to video: public images of the characters, props or style to keep (with a reference model, e.g. kling-4-ref). Motion transfer: the character to move.

  • videoUrlstringup to 2048 characters

    An input clip (public URL, at most 20 s): restyle or reframe it, move a character with its motion, or add sound to it (e.g. kling-video-to-audio). Billed on the clip's length.

  • durationintegerDefault 5 · 1 to 20

    Seconds; the model renders its nearest supported length.

  • aspectRatioenumDefault 16:9
    • 16:9
    • 9:16
    • 1:1
    • 4:3
    • 3:4
    • 21:9
    • 3:2
    • 2:3
    • auto
  • negativePromptstringup to 1000 characters

    What the clip must not show.

  • resolutionenum

    Only a quality the model offers; leave out for its default.

    • 720p
    • 1080p
    • 4k
    • 480p
    • 768p
    • 2k
    • 768P
    • 1080P
    • 480P

Model docs · Summer API docs · Set up the Summer MCP server · Try it in the browser

Questions

What is HeyGen Video good for in game development?
HeyGen Video turns a prompt, an image or up to nine reference images into a 5 to 15 second clip with its own sound, from 480p up to 2K, for about a cent a second. Typical game uses: cheap trailer shots and story beats with sound; in-game TV screens, billboards and menu loops; animatics for a cutscene before the final render.
How much does HeyGen Video cost in Summer?
In Summer Studio: HeyGen Video (text to video): 1 credit / second; HeyGen Video (image to video): 1 credit / second; HeyGen Video References (reference to video): 1 credit / second. It is charged from your Summer credits.
What can HeyGen Video generate, and how long are the clips?
In Summer, HeyGen Video supports text to video, image to video, and reference to video. Generated clips run 5, 6, 8, 10, and 15 seconds, in 16:9, 9:16, 1:1, 4:3, 3:4, and 21:9 aspect ratios at 480p, 768p, 1080p, and 2k.
Can I use HeyGen Video from Claude Code, Cursor or Codex?
Yes. Connect the Summer MCP server to Claude Code, Cursor, Codex or another MCP client, then ask your agent to generate with summer_generate_video with model: "heygen-video". Setup instructions are at summerengine.com/mcp.
Where do HeyGen Video results go?
Every generation is saved to your Summer asset library. From there you can download it or bring it into a Summer Engine project.