ElevenLabs Dubbing v1 vs v2: Test on a 24-Second Clip
ElevenLabs Dubbing v1 vs v2 tested on a 24-second clip: time, credits, voice similarity, and one failure that still cost credits.

👁 117 reads
ElevenLabs Dubbing translates video into another language and lays down a new audio track with voices that aim to sound like the original speakers. We tested it on our own fictional clip: 24 seconds in Spanish, two synthetic voices and background sounds, dubbed into English with models v1 and v2. Below are both results to watch and listen to, times, credits used, voice similarity measurements, and one failure you won’t read about in the pricing page.
Summary
Dubbing the 24-second clip into English took 29.8 s with v1 and 24.3 / 17.0 s with v2 and cost 1235 credits (v1) vs 5559 credits per v2 run (4.5x). Speech blocks: original 4, v1 3, v2 10 / 10. Voice similarity to the original speakers - v2: narrator 0.93 / 0.86, woman 0.75 (different-speaker baseline 0.47); v1: narrator 0.97 / 0.89, woman 0.96 (different-speaker baseline 0.50). Neither v2 run failed this time, but translations differed between runs: v1 was padded and wordy, v2 runs were close to the source and natural. Listen to every dub before publishing.
01ElevenLabs Voice Cloning: clones from 10 s, 30 s and 2 minWe cloned a synthetic voice from 10 s, 30 s and 2 minutes of audio. The 10-second clone reached 0.992 similarity, the 2-minute clone 0.996.Read →
02ElevenLabs Voice Changer: AI Voice Swap Test & ResultsVoice Changer keeps your timing and melody while swapping the voice. We tested it on clean and noisy recordings - here's what survived and what didn't.Read →
03ElevenLabs Scribe: English transcription test with hard namesElevenLabs Scribe v2 transcribed a 59-second English interview with tricky names and 12 numbers in 3.6 s with 2 automatic differences, correctly attributed 6 of 6 turns.Read →
04Voice Isolator: removing noise from audio with ElevenLabsVoice Isolator from ElevenLabs removes background noise from recordings. We tested it with cafe chatter, street noise and fan hum to measure how much cleaner it gets.Read →
05AI Voice Generator: Free & Paid Options for Voice CloningAI voice synthesis has evolved from robotic to natural. We compare free system voices, cloud engines, and commercial cloning services.Read →How ElevenLabs Dubbing Works
The service recognizes speech in the file, separates speakers, translates the text, and generates a new track, leaving the original background (music, sounds). As of September 2026, there are two models:
- Dubbing v1 - older, cheaper, supports the same languages as Eleven v3. Only v1 works with Dubbing Studio, which allows manual editing of transcripts and regenerating individual fragments. The documentation states that Dubbing Studio is in maintenance mode and receives only critical fixes.
- Dubbing v2 - “end-to-end” model, default in API and in automatic dubbing in the app (described there as Alpha). 92 languages according to the pricing page, voice similarity slider (cloning strength 0-10, default 7).
Limits: in the app, files up to 1 GB and 180 minutes; via API up to 3 GB; in Dubbing Studio up to 1 GB and 45 minutes. Dubbing Studio is available from the Starter plan onwards.
Our Test: 24-Second Fictional Clip from Spanish to English
We didn’t want to dub someone else’s video or a real voice, so we assembled the material ourselves. The picture is six 4-second shots from our video generator ranking (coffee in a kitchen and a tram in the rain). We recorded the lines with the Eleven v4 model using two voices from the library: narrator George and female voice Jessica. The background - kitchen and rain with a tram bell - we generated in ElevenLabs Sound Effects. Everything in Spanish, no subtitles.
We tested it in Spanish dubbed into English. On September 29, 2026, we sent the same MP4 file via API to both models with parameters source_language=es and target_language=en. Dubbing returns only the audio track (FLAC), so we joined it with the picture in ffmpeg.
| Result | Dubbing v1 | Dubbing v2, run 1 | Dubbing v2, run 2 |
|---|---|---|---|
| Time from upload to file | 29.8 s | 24.3 s | 17.0 s |
| Credits | 1235 | 5559 | 5559 |
| Spanish transcription | flawless | flawless | flawless |
| Translation | correct, wordy | correct, natural | correct, natural |
| Pauses vs original | 3 blocks instead of 4, shifts up to 3.32 s | 10 blocks, shifts up to 0.28 s | 10 blocks, shifts up to 0.56 s |
| Output file | FLAC 44.1 kHz mono | FLAC 48 kHz stereo | FLAC 48 kHz stereo |
We read v2 credits from the account usage history after the second run, and calculated v1 from the difference between readings, because the dubbing endpoint doesn’t return cost in the header. We measured pauses using word timestamps from Scribe transcription.
Translation: v1 Correct, v2 Sounds Natural
Both models translated the text without factual errors. The difference is in style. The line “¿Cinco minutos? Yo tengo dos si el tranvía llega tarde, y siempre llega tarde cuando llueve” was rendered by v1 as “Five minutes? I only get two if the tram happens to be late, and it is always running behind schedule whenever it starts to rain.” Model v2 translated it as “Five minutes? I get two if the tram is late, and it’s always late when it rains.” The ending “justo a tiempo, por una vez” v1 translated as “right on time for once,” and v2 as “right on time for once” (run 1) and “pulls up right on time, for once” (run 2). In our opinion: v2 sounds like a narrator who understands the tone, v1 like a correct translation from a page.
Comparing with the Non-English Test
In a separate test run in Polish, one of two v2 runs returned gibberish (a stream of random words in multiple alphabets) and still charged credits. In this English test, both v2 runs completed successfully with clean, natural translations, though they differed slightly from each other. The Polish test showed v2 can fail unpredictably; the English test showed it can also vary between runs even when successful.
Practical takeaway: before adding more languages, download the source transcription (endpoint /transcript) and check that it makes sense. It takes a few seconds.
Does the Voice Stay the Same
We didn’t judge this by ear. We compared voice embeddings (WavLM speaker verification model, scale from -1 to 1) in the same time windows in the original and in the dub.
V1 preserved timbre slightly better than v2, and the difference from a different speaker is clear. Changing language always lowers this metric because the voice speaks different phonemes. Model v2 wins on rhythm, not timbre.
How Much ElevenLabs Dubbing Costs
Rates from the API pricing page checked September 28, 2026, excluding VAT. Charged per minute of source material, separately for each language.
| Model | Price per minute | Our 24 s clip | Our credits for 24 s |
|---|---|---|---|
| v1 with watermark | 0.33 USD | 0.13 USD | 1235 |
| v1 without watermark | 0.50 USD | 0.20 USD | |
| v2 | 2.20 USD | 0.88 USD | 5559 |
In subscription plans you pay with credits: Starter at 6 USD gives 30,000 credits per month, Creator at 22 USD gives 121,000. With the usage from our test (5559 credits for 24 s), the Creator plan is enough for about 9 minutes of v2 dubbing per month. In v2, free accounts get a watermark automatically, paid accounts don’t. Plan details are in the article how much ElevenLabs costs.
How to Dub Step by Step
- In the app, go to Dubbing, upload a file or paste a link, and set the source language manually (automatic detection is an additional risk).
- Choose your target language, leave the number of speakers on automatic unless you know how many there are.
- After completion, listen to the whole thing. In v1 you can make corrections in Dubbing Studio; in v2, transcript editing via API is only available in the Enterprise plan according to the documentation.
- Before publishing, check proper names and numbers. In the API you can provide them in
keytermsso the model doesn’t mangle them.
Via API, two commands are enough. We tested them on September 28, 2026 on a 9-second fragment with model_id=dubbing_v1:
curl -X POST https://api.elevenlabs.io/v1/dubbing/project
-H "xi-api-key: $ELEVENLABS_API_KEY"
-F file=@video.mp4 -F source_language=es
-F target_language=en -F model_id=dubbing_v2
# then every few seconds, until status = completed:
curl -H "xi-api-key: $ELEVENLABS_API_KEY"
https://api.elevenlabs.io/v1/dubbing/project/PROJECT_ID/language/LANGUAGE_ID
In the response, the outputs.lossless_audio field contains a link to the FLAC file valid for one hour. You join picture and sound yourself, e.g. ffmpeg -i video.mp4 -i dub.flac -map 0:v -map 1:a -c:v copy -c:a aac output.mp4.
What to Watch Out For
- Other people’s voices. Dubbing reproduces the timbre of speakers, so by uploading a recording of another person, you’re cloning their voice. Only do this with their consent or on material you have rights to.
- Labeling. Viewers should know they’re hearing a generated voice. General principles are described in AI dubbing guidelines.
- Quality control. Status “completed” doesn’t mean the result makes sense, as the Polish test’s first v2 run showed.
A full overview of ElevenLabs tools is in the guide ElevenLabs overview.
Frequently Asked Questions
Does ElevenLabs support dubbing into English?
Yes. English is supported by both models, v1 and v2. In our test, both translated a 24-second clip from Spanish correctly, and v2 preserved the original’s pauses with accuracy up to 0.56 s.
How much does ElevenLabs dubbing cost?
Via API, v1 costs 0.33-0.50 USD per minute, and v2 costs 2.20 USD, excluding VAT. Our 24-second clip used 1235 credits in v1 and 5559 in v2.
Does ElevenLabs dubbing preserve the original voice?
Approximately. In our measurement, voice similarity between original and dub was 0.75-0.97 in both models, versus 0.40-0.50 for a different speaker.
Can you do ElevenLabs dubbing for free?
On the free plan with 10,000 credits per month, yes, but with a watermark and no commercial license. With our v2 usage, that’s about 44 seconds of material.
How long does dubbing take?
Our 24-second clip was ready after 17.0-24.3 s in v2 and after 29.8 s in v1. For longer files, ElevenLabs recommends webhooks instead of polling for status.
Sources and Date Checked
- ElevenLabs API pricing
- ElevenLabs plan pricing
- documentation: Dubbing
- Dubbing API quickstart
- help: how much does dubbing cost. Own test September 28-29
- 2026: 3 jobs on a 24 s clip plus 1 curl command test
- total about 12,500 credits. Voice similarity: microsoft/wavlm-base-plus-sv model. Checked September 29
- 2026
ElevenLabs Voice Changer: AI Voice Swap Test & ResultsAI Tools
ElevenLabs Agents Voicebot Test: Dental Reception LineBenchmarks
ElevenLabs Scribe: English transcription test with hard namesBenchmarksThe link to ElevenLabs is a partner link: if you buy through it, QUANTSLANT earns a commission and you pay the same price. It has no influence on the content, including where the coverage is critical.
More on this from QUANTSLANT
guides·Don’t Concatenate CSS Files - I Measured the Performance CostMerging stylesheets into one 69 KB file increased TBT from 76 to 372 ms. Measurement, explanation of the mechanism, and how to test it yourself.