kling-video-o1/standard/image-to-video
Create 1080p cinematic clips from stills with physics-true motion and consistent subjects.
HeyGen's HeyGen Video Text To Video builds a 5 to 15 second scene, with its own sound, from $0.009 per second.
Trading a separate shoot and a later voice pass for one scene call suits editors, trainers, and product teams.
For developers, HeyGen Video on RunComfy can be used both in the browser and via an HTTP API, so you don't need to host or scale the model yourself.
Ideal for: Product Beats | Training Inserts | Dialogue Coverage.
A mood word often returns a generic room. This page builds the subject, the light, and the sound in one clip, so dialogue and room tone share the same description.
| Advantage | What you get |
|---|---|
| Picture and sound | HeyGen Video writes the track with the frames. |
| A length you set | Any whole second from 5 to 15. |
| Four sizes | 480p, 768p, 1080p, and 2k. |
| A repeatable shot | A HeyGen Video seed lets the next run stay close. |
This page is text to video only. You do not upload a first frame here. The prompt is the whole brief.
On RunComfy, try a shot in the model UI, then send the same prompt and settings through the HTTP API.
prompt, duration, resolution, aspect_ratio, prompt_enhancement, and optional seed.These are the controls on this page.
| Parameter | Required | Type | Default | Range / Options | Description |
|---|---|---|---|---|---|
prompt* | Yes (*) | String | Lisbon street line | 1–32000 characters | Subject, place, camera, dialogue, and sound. |
duration | No | Integer | 5 | 5–15 | Length in whole seconds. |
resolution | No | String | 768p | 480p, 768p, 1080p, 2k | Frame size. |
aspect_ratio | No | String | 16:9 | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 | HeyGen Video frame shape. |
prompt_enhancement | No | String | quality | turbo, quality, ultraquality, disabled | Expansion before the shot. Disabled keeps your text. |
seed | No | Integer | Empty | 0–4294967295 | Optional repeat handle. |
HeyGen Video bills each second of the duration you set. 1080p and 2k share one rate.
| Resolution | Per second | 5 seconds | 10 seconds |
|---|---|---|---|
| 480p | $0.009 | $0.045 | $0.09 |
| 768p | $0.009 | $0.045 | $0.09 |
| 1080p or 2k | $0.028 | $0.14 | $0.28 |
Aspect ratio does not add a HeyGen Video fee. The charge is the same per second for 9:16 and 16:9 at one resolution.
Create 1080p cinematic clips from stills with physics-true motion and consistent subjects.
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HeyGen Video builds a 5 to 15 second scene from a written prompt, with picture and sound in the same clip. This page is text to video only. It fits product beats, training inserts, and one line of dialogue.
HeyGen Video accepts any whole second from 5 to 15. Resolutions are 480p, 768p, 1080p, and 2k. Aspect ratios include 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16, but 1080p and 2k only accept 16:9 or 9:16.
Name the person, the place, the lens, and the sound in the HeyGen Video prompt. A 50mm on a tripod is clearer than the word cinematic. Say that you want no music, no logos, and no printed words when those should stay out of frame.
HeyGen Video can expand the prompt with turbo, quality, or ultraquality, and quality is the default. Choose disabled when the prompt is already a full shot list. A seed lets the next run stay close while you change one sentence.
HeyGen Video prompts can be up to 32000 characters. Duration must be a whole number from 5 to 15. You do not upload a first frame on this page. One person speaking is safer than hands building a small object.
Yes. Try a HeyGen Video shot in the Playground Web UI, then send the same prompt, duration, resolution, aspect ratio, enhancement, and optional seed through the RunComfy API. The API uses the same model. It does not promise a fixed turnaround or unlimited concurrency.
HeyGen Video bills each second of the duration you set: $0.009 at 480p, $0.009 at 768p, and $0.028 at 1080p and 2k. A 5-second 768p clip is $0.045. Aspect ratio does not add a fee. Generations consume usd credits.
RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.
