HeyGen Video 1.0

HeyGen Video 1.0 is a model for producing short videos with audio generated alongside the picture. Runware’s model documentation describes its hosted API access.

Picture and sound are generated together

Native audio means that sound forms part of the generated video workflow. This is useful for clips where speech or other audio needs to follow the visual scene. Check timing and lip movement on the actual output, especially when several speakers or rapid cuts are involved.

Runware documents clips of 5–15 seconds, output at 480p or 768p, and up to 12 image, video or audio references. References guide the generated scene and sound. Assess the complete output with audio enabled before accepting it.

The confirmed date is provider availability

Runware’s changelog lists HeyGen Video 1.0 on 30 September 2026. That establishes availability through Runware by that date. The release list records this provider milestone.

For comparisons with other video models, use the same scene description and judge motion, audio timing and the number of attempts needed to obtain a usable clip. Keep the provider, model identifier and settings with the result, because similarly named video services can expose different workflows.