HeyGen modelsvideo generation api

heygen/heygen/translate/precision

Heygen Translate Precision by HeyGen - AI-powered video editing and transformation. Apply style transfer, motion control, lip-sync, and visual effects to existing videos with natural language instructions.

Input
URL of the video to translate.
The target language for translation. Allowed values: English, Spanish, French, Hindi, Italian, German, Polish, Portuguese, Chinese, Japanese, Dutch, Turkish, Korean, Danish, Arabic, Romanian, Mandarin, Filipino, Swedish, Indonesian, Ukrainian, Greek, Czech, Bulgarian, Malay, Slovak, Croatian, Tamil, Finnish, Russian, Afrikaans (South Africa), Albanian (Albania), Amharic (Ethiopia), Arabic (Algeria), Arabic (Bahrain), Arabic (Egypt), Arabic (Iraq), Arabic (Jordan), Arabic (Kuwait), Arabic (Lebanon), Arabic (Libya), Arabic (Morocco), Arabic (Oman), Arabic (Qatar), Arabic (Saudi Arabia), Arabic (Syria), Arabic (Tunisia), Arabic (United Arab Emirates), Arabic (Yemen), Armenian (Armenia), Azerbaijani (Latin, Azerbaijan), Bangla (Bangladesh), Basque, Bengali (India), Bosnian (Bosnia and Herzegovina), Bulgarian (Bulgaria), Burmese (Myanmar), Catalan, Chinese (Cantonese, Traditional), Chinese (Jilu Mandarin, Simplified), Chinese (Mandarin, Simplified), Chinese (Northeastern Mandarin, Simplified), Chinese (Southwestern Mandarin, Simplified), Chinese (Taiwanese Mandarin, Traditional), Chinese (Wu, Simplified), Chinese (Zhongyuan Mandarin Henan, Simplified), Chinese (Zhongyuan Mandarin Shaanxi, Simplified), Croatian (Croatia), Czech (Czechia), Danish (Denmark), Dutch (Belgium), Dutch (Netherlands), English (Australia), English (Canada), English (Hong Kong SAR), English (India), English (Ireland), English (Kenya), English (New Zealand), English (Nigeria), English (Philippines), English (Singapore), English (South Africa), English (Tanzania), English (UK), English (United States), Estonian (Estonia), Filipino (Philippines), Finnish (Finland), French (Belgium), French (Canada), French (France), French (Switzerland), Galician, Georgian (Georgia), German (Austria), German (Germany), German (Switzerland), Greek (Greece), Gujarati (India), Hebrew (Israel), Hindi (India), Hungarian (Hungary), Icelandic (Iceland), Indonesian (Indonesia), Irish (Ireland), Italian (Italy), Japanese (Japan), Javanese (Latin, Indonesia), Kannada (India), Kazakh (Kazakhstan), Khmer (Cambodia), Korean (Korea), Lao (Laos), Latvian (Latvia), Lithuanian (Lithuania), Macedonian (North Macedonia), Malay (Malaysia), Malayalam (India), Maltese (Malta), Marathi (India), Mongolian (Mongolia), Nepali (Nepal), Norwegian Bokmål (Norway), Pashto (Afghanistan), Persian (Iran), Polish (Poland), Portuguese (Brazil), Portuguese (Portugal), Romanian (Romania), Russian (Russia), Serbian (Latin, Serbia), Sinhala (Sri Lanka), Slovak (Slovakia), Slovenian (Slovenia), Somali (Somalia), Spanish (Argentina), Spanish (Bolivia), Spanish (Chile), Spanish (Colombia), Spanish (Costa Rica), Spanish (Cuba), Spanish (Dominican Republic), Spanish (Ecuador), Spanish (El Salvador), Spanish (Equatorial Guinea), Spanish (Guatemala), Spanish (Honduras), Spanish (Mexico), Spanish (Nicaragua), Spanish (Panama), Spanish (Paraguay), Spanish (Peru), Spanish (Puerto Rico), Spanish (Spain), Spanish (United States), Spanish (Uruguay), Spanish (Venezuela), Sundanese (Indonesia), Swahili (Kenya), Swahili (Tanzania), Swedish (Sweden), Tamil (India), Tamil (Malaysia), Tamil (Singapore), Tamil (Sri Lanka), Telugu (India), Thai (Thailand), Turkish (Türkiye), Ukrainian (Ukraine), Urdu (India), Urdu (Pakistan), Uzbek (Latin, Uzbekistan), Vietnamese (Vietnam), Welsh (United Kingdom), Zulu (South Africa), English - Your Accent, English - American Accent.
Idle

Example output — click Run to generate your own

API README

HeyGen Translate Precision

heygen/heygen/translate/precision translates spoken video into another language while preserving the original speaker, performance, and on-screen timing. Precision mode prioritizes translation quality, voice likeness, and careful lip synchronization for polished localized masters. This combination makes the model a practical choice when the creative outcome depends on those qualities rather than on a generic media conversion.

For production work with heygen/heygen/translate/precision, the workflow suits customer-facing campaigns, courses, interviews, and presentations where linguistic nuance and audiovisual credibility justify additional processing. The result is most reliable when the source material and creative brief clearly describe the intended subject, progression, visual or sonic character, and the qualities that must remain unchanged.

Highlights

Context-aware translation preserves meaning, tone, and natural phrasing across languages.

Voice preservation keeps the original speaker's recognizable vocal identity.

Precise lip synchronization aligns translated speech with the person on screen.

Performance continuity retains emotion, pacing, and intent through localization.

Pricing

Generated or processed durationPrice
Per second$0.100

When to Use

✅ Good fit❌ Consider alternatives
The model's named workflow matches the source material and intended outputA different input modality or model route is required
A managed asynchronous result is suitable for the production pipelineA synchronous, interactive editor is essential
The documented controls cover the required duration, framing, or formatThe project needs controls outside this endpoint's schema
Creative iteration benefits from a repeatable request structureExact deterministic pixels, frames, geometry, or samples are mandatory
A finished downloadable media asset is the desired deliverableEditable source layers or a native project file are required

Prompt Guide

For generation, state the intended result first, then add the subject or source treatment, progression, style, and delivery constraints. Keep one creative variable per phrase, use the documented field names for controls, and change one setting at a time when comparing results.

{
  "target_language": "English",
  "video": "https://static.sandbase.ai/examples/heygen/heygen/translate/precision/input_video_0.mp4"
}

Technical Specs

SpecValue
Model IDheygen/heygen/translate/precision
Inputstarget_language, video
Required inputsvideo, target_language
Output fieldscontent_type, url
ExecutionAsync (submit, then poll for result)

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