AI Video Translator dubs any video into 28 languages: every speaker keeps a voice that matches their own, the original music and sound effects stay under the dub, and the timing follows the picture. Optional translated subtitles as an SRT file. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.
Idle
$0.25per run·~40 / $10
AI Video Translator translates and dubs videos into 28 target languages while preserving the original picture. It generates speech designed to resemble each speaker’s voice and fits translated dialogue to the original timing. Keep or remove background audio, specify translations for names and terms, and optionally include translated subtitles.
glossary to specify translations for names, brands and other terms.| Parameter | Required | Description |
|---|---|---|
| video | Yes | URL of the video to translate and dub. You can also upload a file in the Playground. Up to 2 hours is processed. |
| target_language | No | Target language code, such as en, es or zh-CN. Default: en. Choose a language different from the source speech. |
| source_language | No | Source language code. Default: auto, which detects the language automatically. Set it explicitly when the source language is known. |
| speakers | No | Number of people speaking: 1, 2, 3 or 4. Omit to detect automatically. No fixed default. |
| background | No | keep preserves background music and sound effects; remove removes them. Default: keep. |
| glossary | No | Up to 100 entries in a string array, each written as source=translation. Example: ["Acme=Acme", "Hello=Hola"]. Omit or use [] when no terminology guidance is needed. |
| subtitles | No | Return translated subtitles as an .srt file and include a soft subtitle track in the MP4. Default: false. |
| voice | No | Voice mode. The only supported value is clone, which generates speech designed to resemble the original speaker’s voice. |
target_language different from the language spoken in the video.source_language on auto, or specify the source language.speakers empty for automatic detection, or select the number of speakers.subtitles if you need translated subtitles.$0.25 per minute of source video, rounded up to the next whole minute. Billing is capped at 120 minutes per video.
Price = source duration in minutes, rounded up × $0.25, subject to the 120-minute cap.
| Source video length | Billed duration | Price |
|---|---|---|
| 30 seconds | 1 minute | $0.25 |
| 1 minute | 1 minute | $0.25 |
| 1 minute 1 second | 2 minutes | $0.50 |
| 5 minutes | 5 minutes | $1.25 |
| 10 minutes | 10 minutes | $2.50 |
| 60 minutes | 60 minutes | $15.00 |
| 120 minutes | 120 minutes | $30.00 |
Target language, speaker count, background audio settings, glossary entries and subtitles do not add separate charges.
speakers unset for automatic detection; do not use 0 to request automatic detection.source=translation.Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/wavespeed-ai/ai-video-editor/video-translator with your input as JSON. The endpoint returns a prediction id. Start polling the result endpoint around every 2 seconds, increase the interval for long-running tasks, and stop on any terminal status. On completed, read output values from data.outputs. Examples for Ai Video Editor Video Translator below.
set -euo pipefail
: "${WAVESPEED_API_KEY:?Set WAVESPEED_API_KEY}"
REQUEST_BODY=$(cat <<'JSON'
{
"video": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4",
"target_language": "en",
"source_language": "auto",
"speakers": 1,
"background": "keep",
"subtitles": false
}
JSON
)
# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
-X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/ai-video-editor/video-translator" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $WAVESPEED_API_KEY" \
-d "$REQUEST_BODY")
TASK=$(printf '%s' "$SUBMIT_RESPONSE" | jq 'if has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "$TASK" | jq -r '.id')
if [ -z "$PREDICTION_ID" ] || [ "$PREDICTION_ID" = "null" ]; then
printf 'Submission response did not contain a prediction id
' >&2
exit 1
fi
RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/$PREDICTION_ID/result"
# 2. Poll until the prediction finishes.
while true; do
RESPONSE=$(curl --silent --show-error --fail-with-body "$RESULT_URL" \
-H "Authorization: Bearer $WAVESPEED_API_KEY")
RESULT=$(printf '%s' "$RESPONSE" | jq 'if has("data") then .data else . end')
STATUS=$(printf '%s' "$RESULT" | jq -r '.status')
case "$STATUS" in
completed) printf '%s\n' "$RESULT" | jq '.outputs'; break ;;
failed|cancelled|timeout|deleted) printf '%s\n' "$RESULT" | jq . >&2; exit 1 ;;
*) sleep 2 ;;
esac
doneconst submitUrl = "https://api.wavespeed.ai/api/v3/wavespeed-ai/ai-video-editor/video-translator";
const apiKey = process.env.WAVESPEED_API_KEY;
if (!apiKey) throw new Error('Set WAVESPEED_API_KEY');
async function requestJson(url, options = {}) {
const response = await fetch(url, options);
if (!response.ok) throw new Error(await response.text());
return response.json();
}
// 1. Submit the prediction.
const body = await requestJson(submitUrl, {
method: "POST",
headers: {
"Authorization": `Bearer ${apiKey}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
"video": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4",
"target_language": "en",
"source_language": "auto",
"speakers": 1,
"background": "keep",
"subtitles": false
}),
});
const task = body.data ?? body;
if (!task.id) throw new Error("Submission response did not contain a prediction id");
const resultUrl = `https://api.wavespeed.ai/api/v3/predictions/${task.id}/result`;
// 2. Poll until the prediction finishes.
while (true) {
const resultBody = await requestJson(resultUrl, {
headers: { "Authorization": `Bearer ${apiKey}` },
});
const result = resultBody.data ?? resultBody;
if (result.status === "completed") {
console.log(result.outputs);
break;
}
if (["failed", "cancelled", "timeout", "deleted"].includes(result.status)) throw new Error(JSON.stringify(result));
await new Promise(resolve => setTimeout(resolve, 2000));
}import json
import os
import time
from urllib.request import Request, urlopen
api_key = os.environ["WAVESPEED_API_KEY"]
headers = {"Authorization": f"Bearer {api_key}", "Content-Type": "application/json"}
payload = {
"video": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4",
"target_language": "en",
"source_language": "auto",
"speakers": 1,
"background": "keep",
"subtitles": False
}
def request_json(url, data=None):
request = Request(url, data=data, headers=headers, method="POST" if data else "GET")
with urlopen(request) as response:
return json.load(response)
# 1. Submit the prediction.
body = request_json("https://api.wavespeed.ai/api/v3/wavespeed-ai/ai-video-editor/video-translator", json.dumps(payload).encode())
task = body.get("data", body)
if not task.get("id"):
raise RuntimeError("Submission response did not contain a prediction id")
result_url = f"https://api.wavespeed.ai/api/v3/predictions/{task['id']}/result"
# 2. Poll until the prediction finishes.
while True:
result_body = request_json(result_url)
result = result_body.get("data", result_body)
status = result.get("status")
if status == "completed":
print(result.get("outputs", []))
break
if status in {"failed", "cancelled", "timeout", "deleted"}:
raise RuntimeError(result)
time.sleep(2)Ai Video Editor Video Translator is a WaveSpeedAI model for video editing, exposed as a REST API on WaveSpeedAI. AI Video Translator dubs any video into 28 languages: every speaker keeps a voice that matches their own, the original music and sound effects stay under the dub, and the timing follows the picture. Optional translated subtitles as an SRT file. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.
POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID. Poll the result endpoint starting around every 2 seconds, increase the interval for long-running tasks, and stop on any terminal status. The playground generates Python, JavaScript, and cURL examples for submitting requests and polling results. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/wavespeed-ai/ai-video-editor-video-translator.
Ai Video Editor Video Translator starts at $0.25 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.
Key inputs: `video`, `background`, `glossary`, `source_language`, `speakers`, `subtitles`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/wavespeed-ai/ai-video-editor-video-translator.
Sign up for a free WaveSpeedAI account to claim starter credits, copy your API key from /accesskey, then call the endpoint shown in the API tab of the playground. The playground also auto-generates a code sample in Python, JavaScript, or cURL for the parameters you've set.
Commercial usage rights depend on the model's license, set by its provider (WaveSpeedAI). Check the provider's applicable terms and WaveSpeedAI's Terms of Service before commercial use.