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Translate and dub existing videos into multiple languages using HeyGen.
Passed 21 of 22 test cases with the skill, and 7 of 22 without it.
and 19 more in the full report
14 fixed7 passed either way1 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 14 test cases the skill fixed. Same model, same prompt, with and without the skill.
What is the output language code for Standard Hindi in the HeyGen video translation service?
| Checked | Without skill | With skill |
|---|---|---|
| Sets output_language to hi-IN | Missed | Passed |
The instructions your model reads when the skill loads.
Translate and dub existing videos into multiple languages, preserving lip-sync and natural speech patterns. Provide a video URL or HeyGen video ID — no need to create the video on HeyGen first.
All requests require the X-Api-Key header. Set the HEYGEN_API_KEY environment variable.
curl -X POST "https://api.heygen.com/v2/video_translate" \
-H "X-Api-Key: $HEYGEN_API_KEY" \
-H "Content-Type: application/json" \
-d '{"video_url": "https://example.com/video.mp4", "output_language": "es-ES"}'
POST /v2/video_translate with the target languageGET /v2/video_translate/{translate_id} until status is completed| Field | Type | Req | Description |
|---|---|---|---|
video_url | string | Y* | URL of video to translate (*or video_id) |
video_id | string | Y* | HeyGen video ID (*or video_url) |
output_language | string | Y | Target language code (e.g., "es-ES") |
title | string | Name for the translated video | |
translate_audio_only | boolean | Audio only, no lip-sync (faster) | |
speaker_num | number | Number of speakers in video | |
callback_id | string | Custom ID for webhook tracking | |
callback_url | string | URL for completion notification |
Either video_url or video_id must be provided.
test cases passed, vs 7 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.