The leading text-to-video model

HeyGen Video is HeyGen's general-purpose AI video model, built on MiniMax H3 and post-trained by HeyGen. It generates an entire scene from a prompt, including the subject, setting, lighting and sound, as a 5- to 15-second clip. It works in three modes: text to video, image to video and reference to video. On HeyGen, you can use it alongside your AI digital twin and other models within a single workflow.

You can create brand film shots, product scenes, B-roll cutaways, social hooks and stylised explainers, each with matching audio. HeyGen Video keeps scenes consistent: objects retain their size and position and obey the laws of physics. It follows a brief precisely, so dialogue is included only when requested. It works best for short, self-contained shots featuring one subject, one location and one action.

HeyGen Video is available through the HeyGen API as the heygen-video-1 model with paid API keys. Create a key in your API settings, then send a prompt and a mode to the create endpoint. Finished clips will appear in your workspace alongside your other HeyGen videos.

Choose a mode, write a detailed prompt and submit it. Use text to video for a new scene, image to video to begin with your own first frame, or reference to video to retain a product, person or place you provide. Longer prompts that specify the camera, lens and sound are more effective than short ones. Check the job status or set a callback, then download the MP4.

Clips can be between 5 and 15 seconds long at 480p, 768p, 1080p or 2K, encoded as a 24 fps MP4 with stereo audio. Aspect ratios include 21:9, 16:9, 4:3, 1:1, 3:4 and 9:16, so you can create content for YouTube, TikTok, Reels or Shorts without cropping it again. 1080p and 2K are rendered only in 16:9 or 9:16 and are charged at three times the 768p rate.

Yes. Videos generated with HeyGen Video can be used for commercial work, including adverts, social posts, product launches and client deliverables, under your HeyGen commercial licence. To keep invented branding out of the frame, add 'no logos, brand names, printed words or badges' to your prompt, as plain clothing and equipment can otherwise acquire fictitious markings.

Yes. Room tone, sound effects and speech are generated alongside the picture from the same prompt, so the audio matches the setting you described. Written dialogue fits at roughly 2.5 words per second, or about 37 words in a 15-second clip. Specify ‘no music’ if you do not want background music. For longer scripted delivery, your digital twin can speak in your own voice.

Seedance 2.0 and Veo 3.1 are known for complex, multi-shot cinematic motion. HeyGen Video competes on control: following prompts literally, generating sound from the same prompt, supporting up to 12 references and offering repeatable seeds. HeyGen's greater advantage is its workflow. You choose the right model for each shot, then add avatars, voice and captions in one place.

Yes. Set the seed yourself, and the same prompt with the same seed, submitted in succession, returns an identical file. Keep the seed fixed and change one clause at a time to iterate. When the seed is omitted, the server selects one at random, so two identical requests return different videos. The completed job reports the seed it used.

Only if you allow it. Prompt enhancement can reword the rest of the prompt, so disable it when you want your text kept exactly as written. You can also provide a callback URL to be notified when a job finishes, so you do not have to poll for the result.