Comparison
Silenis vs Rask.ai: An Honest Comparison (2026)
Both tools translate and dub videos with AI. They differ on pricing model, music handling, voice cloning, and what kind of user each one is built for. Here is a clear-eyed side-by-side.
Quick Comparison
| Dimension | Silenis | Rask.ai |
|---|---|---|
| Pricing model | Pay-per-use, no subscription | Monthly / annual subscription, tiered by minutes |
| Per-minute cost | ~$1.20/min ($0.12 per 6 seconds) | $2.40–$2.40/min on Creator (~$3/min on Business overage) |
| Languages | 36+ dubbing languages | 135 languages and dialects |
| Voice cloning | No (curated voice catalog) | Yes (in 32 languages) |
| Background music preservation | Yes (Demucs-based vocal separation) | Not a primary feature |
| Lip-sync | No | Yes (Creator Pro and up) |
| Free preview before purchase | Yes (watermarked) | 3-minute free tier; full quality requires paid plan |
| Team / editor workspace | No (single-user workflow) | Yes (Creator Pro adds shared workspace) |
| API access | Not currently exposed | Yes (Business and Enterprise) |
Feature-by-Feature
Pricing model
Silenis is pure pay-per-use at $0.12 per 6 seconds of source video (roughly $1.20 per minute). You upload a video, get a free watermarked preview, and pay only when you download the unwatermarked file. There is no subscription, no monthly minimum, and no credits that expire.
Rask.ai uses a tiered subscription. The Creator plan starts at $60/month monthly or $50/month billed annually for 25 minutes, with overage billed per minute. Creator Pro runs $150/month monthly or $120/month annually for 100 minutes, and the Business plan goes up to $750/month for 500 minutes. Enterprise pricing is custom. This is a fair structure for users who dub a lot every month; it is a poor fit if you only dub occasionally.
Music and sound effects
This is the biggest practical difference between the two tools. Silenis uses Demucs-based vocal separation to isolate the spoken voice from the rest of the audio, runs translation and synthesis on the vocals only, and then remixes the new voice over the original background music, sound effects, and ambient sound. If your source video has a music track or environmental audio, that audio is preserved.
Rask.ai replaces the entire audio track with the dubbed voice. If the original video had background music, you typically get only the dubbed voice in the output. Rask does not position itself around music preservation.
Voice cloning
Rask.ai supports voice cloning in 32 languages. You upload a sample of a voice and the system can generate new speech in that voice in supported languages. This is genuinely useful for branded content where the presenter's voice identity matters.
Silenis deliberately does not require voice cloning. It uses a curated voice catalog and matches voices by attributes like tone and pace. This trade-off keeps the workflow faster (no reference audio needed) and avoids the ethical and legal complications of cloning someone's voice without their explicit consent.
Languages
Rask.ai advertises 135 languages and dialects — a very wide net. Silenis currently supports 36+ dubbing languages. Rask wins on raw language count, but raw count does not equal voice quality in every language. Silenis focuses on shipping high-quality TTS voices in the languages it does support, and adding more over time.
Editor and team features
Rask.ai ships an in-browser editor for adjusting scripts, fine-tuning translation, and re-recording segments. Creator Pro adds a shared workspace for teams. This is a real advantage if you have multiple reviewers or need to iterate on translations before approval.
Silenis is a single-user workflow optimized for speed: upload, preview, pay, download. There is no shared workspace or in-browser script editor. If you need collaborative review, Rask.ai fits better.
Lip-sync
Rask.ai offers lip-sync on the Creator Pro plan and above, which adjusts the speaker's mouth movements to match the dubbed audio. This is valuable for talking-head content where mouth movement matters. Silenis does not currently offer lip-sync; it targets the dubbing layer (audio track replacement) rather than visual re-animation.
Pricing Comparison
The clearest way to compare is by the dollar cost for a specific job. Take a 10-minute video dubbed into Spanish:
- Silenis: 600 seconds × ($0.12 / 6) = $12.00. No subscription, pay once.
- Rask.ai Creator (annual): The 10-minute job fits inside the 25-minute monthly allowance; you pay the $50/month subscription, so the effective cost for one dub is $50 — or $12.00 if you divide 10 minutes by the included 25 and pay just that share.
- Rask.ai overage (no subscription): Not available. You must subscribe.
For a one-off job, Silenis is significantly cheaper. For ongoing high volume (dozens of videos per month, annually billed), Rask.ai's per-minute cost on annual plans can become competitive.
When to Choose Silenis
- You are dubbing a single video, or a few per month, and don't want a subscription.
- Your source video has background music or sound effects that need to survive the dub.
- You do not have reference voice audio and don't want to clone a voice.
- You want a quick pay-per-use workflow with no team features needed.
- You want to preview the dub for free before paying.
When to Choose Rask.ai
- You need a specific person's voice cloned for branded content.
- You need lip-sync for talking-head videos.
- You dub high volumes every month and benefit from an annual subscription.
- You need collaborative review of translated scripts in a shared workspace.
- You need API access to integrate dubbing into your own product or workflow.
- You need one of the 100+ languages Silenis doesn't yet support.
FAQ
Is Silenis cheaper than Rask.ai?
It depends on usage. Silenis charges $0.12 per 6 seconds of source video ($1.20 per minute) on pure pay-per-use with no subscription. Rask.ai's Creator plan starts at $60/month (25 minutes included) and Business runs $750/month (500 minutes). For under roughly 50 minutes per month, Silenis is meaningfully cheaper; for high-volume subscribers on annual plans, Rask.ai's per-minute rate ($2.40 on Creator annual) can be competitive.
Does Silenis support voice cloning like Rask.ai?
No. Silenis uses a curated voice catalog and does not require voice cloning. Rask.ai supports voice cloning in 32 of its languages, which is useful if you need a specific real person's voice. If you need cloning, use Rask.ai. If you just need natural-sounding dubs without uploading reference audio, Silenis is faster.
Which tool preserves background music better?
Silenis is built around music preservation. It uses Demucs-based vocal separation to isolate vocals, translate and re-synthesize them, then remix with the original background music and effects. Rask.ai replaces the entire audio track with the dubbed voice; if the source video has music, it is generally not preserved.
How do the language counts compare?
Rask.ai advertises 135 languages and dialects. Silenis currently supports 36+ dubbing languages. Rask has broader coverage; Silenis prioritizes quality and TTS voice availability over raw language count.
Does Silenis have a free trial?
Yes. You can generate a watermarked preview for free on any video before paying. Rask.ai offers a 3-minute free tier and limited free tools, but full-quality output requires a paid plan.
Which tool is better for one-off dubbing jobs?
Silenis. Its pay-per-use model with no subscription is purpose-built for one-off or low-volume dubbing. Rask.ai's pricing and feature set target creators and teams doing dubbing regularly, with the editor and team features adding cost that doesn't help a single-project user.
Can I try both tools on the same video?
Yes. Upload the same source file to Silenis for a free watermarked preview, and use Rask.ai's 3-minute free tier on a short clip. Compare the output directly. This is the fastest way to know which tool fits your content.
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