Paid Text-to-Speech Commercial Licenses: YouTube Usage Guide
Aug. 18, 2026
When people aiming to become YouTubers decide to use "text-to-speech software," the thing they are most concerned about is commercial use.
Using "text-to-speech software" on YouTube with expectations of advertising revenue or affiliate income clearly constitutes commercial use.
In this article, we will introduce whether commercial use is possible for four paid text-to-speech software programs and what their licensing looks like.
If you mistakenly use a text-to-speech software that does not allow commercial use and violate the terms of service,
- Videos might be deleted, or your account might be suspended,
- You might receive complaints from the text-to-speech software company,
and various other risks are expected.
To avoid violating the terms, it is important to check the terms of use before purchasing.
However, there are many text-to-speech software programs in the world.
When comparing multiple software options,
- which ones are OK for commercial use,
- which ones are NG,
- and for which ones a license purchase is unnecessary for individual use on YouTube,
it is difficult to organize because there are so many differences.
Please use this article as a reference for choosing text-to-speech software that is OK for commercial use.
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This article explains the latest recommended software information that is OK for commercial use. Please take a look!
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[Commercial OK] Explaining Paid text-to-speech software
This time, we will introduce:
- Ondoku
- AI Talk
- VOICEROID
- CeVIO
- Yukkuri-style audio (AquesTalk2)
Since there are many, we will pick out and briefly explain the product descriptions and commercial use, especially for individual use on YouTube.
Ondoku (Free use also OK)
The first one is the AI text-to-speech software, "Ondoku."
Prices range from free to 3,278 yen (tax included).
"Ondoku" allows for free use and downloads without requiring member registration.
Registering increases the number of characters you can read for free.
In addition to reading in Japanese, it also supports multiple languages.
Paid members can use between 200,000 and 1,000,000 characters per month.
Even free members can use it for commercial purposes without any particular restrictions.
If you are looking for reading software, we recommend trying "Ondoku" first.
Why not experience the high-performance AI reading of "Ondoku"?
AI Talk
The second one is AI Talk.
A well-known and famous text-to-speech software developed by AI Inc.
Prices start from 16,500 yen.
In Kantan AI Talk 3:
- 4 female voices
- 1 male voice
- 1 female Kansai dialect voice
- 1 male Kansai dialect voice
are available.
It also supports emotional expression, and you can experience the speech synthesis on the website.
Regarding commercial use, the website states, "Basically, commercial or business use is not permitted."
However, looking closer, it says, "OK to use for narration in web video works on video sharing sites (such as YouTube)."
Generally, for individuals, it seems that using it for content that earns advertising revenue from YouTube views is permitted under a standard license.
However, using it for video production accepted as a paid job, or for YouTube videos that have sponsors and receive compensation, is considered commercial use. These cannot be used within the scope of a standard license.
Furthermore, AI Talk does not sell commercial licenses. For commercial use by corporations, there are separate products for businesses.
VOICEROID
The third one is VOICEROID.
This is software for which the speech synthesis engine is provided by AI Inc. and sold by AHS, Gynoid (Yoshimoto), Yamaha, and Internet.
Prices start from 15,180 yen.
It is a text-to-speech software with a lineup of over 20 character voices. Many sound sources are created based on voice actors' voices, giving them high uniqueness.
Every voice perfectly fits the cute character illustrations.
However, because the providing companies differ depending on the sound source, the terms of use vary slightly for each software.
The scope of permissible commercial use also differs, so careful attention is required.
- Basically possible for individual use.
- For commercial use, terms of use must be checked individually (as providers differ).
- For corporations, there is a separate pricing structure.
*If you want to read using VOICEROID characters, "A.I.VOICE" and "A.I.VOICE2" are recommended.
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CeVIO
The fourth one is CeVIO.
Until November 19, 2014, there was a free version of CeVIO, but now there is only a 30-day trial version. Prices start from 6,600 yen.
In the currently available CeVIO Creative Studio, there are:
- Sato Sasara,
- Suzuki Tsudumi,
- Takahashi,
A set purchase of the three is possible, and they are also sold separately.
Let's check the commercial use of interest, particularly regarding use in video postings such as on YouTube.
It states,
"For use in video postings, if posted by an individual or a doujin circle to earn advertising revenue, it can be used for free."
For the act of an individual posting a video to YouTube, it can be used without purchasing a commercial license.
However, in that case, it is necessary to state the CeVIO character name and that it is CeVIO in the video description field, etc.
Furthermore, in the case of video production undertaken for a fee, a paid commercial use license is required. The license fee requires an estimate. There was no mention of how much it costs.
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Yukkuri-style audio (Bouyomi-chan, AquesTalk2)
The fifth is "Yukkuri-style" audio (AquesTalk2).
This is used as the speech synthesis engine for software and services like Bouyomi-chan.
The old version of AquesTalk included with Bouyomi-chan can be used for free regardless of whether it is for profit or non-profit.
However, to use software incorporating the current version of AquesTalk commercially, a license purchase is required.
The license fee is 6,380 yen per year (tax included).
Reading software for Yukkuri voices is also explained in this article.
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Summary
In this article, we introduced paid text-to-speech software with an emphasis on commercial use.
Overall recommendations are:
- If you want to use it simply and intuitively: Ondoku
- If you want to create with great care, such as adjusting the tone: VOICEROID+
Since there are also preferences for voice quality, please try the trial versions on the official websites.
Actually trying it yourself is the shortest path to finding your favorite software.
I would be happy if you include me, Ondoku, among your choices.
I am working hard on this, so I would be very happy if you could support me.
This has been a long post, but let's end here for now.
I look forward to seeing you again.
■ AI voice synthesis software "Ondoku"
"Ondoku" is an online text-to-speech tool that can be used with no initial costs.
- Supports approximately 50 languages, including Japanese, English, Chinese, Korean, Spanish, French, and German
- Available from both PC and smartphone
- Suitable for business, education, entertainment, etc.
- No installation required, can be used immediately from your browser
- Supports reading from images
To use it, simply enter text or upload a file on the site. A natural-sounding audio file will be generated within seconds. You can use voice synthesis up to 5,000 characters for free, so please give it a try.
Email: ondoku3.com@gmail.com
"Ondoku" is a Text-to-Speech service that anyone can use for free without installation. If you register for free, you can get up to 5000 characters for free each month. Register now for free
- What is Ondoku
- Start text-to-speech conversion
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