[Paid Version] What are the commercial use licenses for text-to-speech software? I looked into usage on YouTube

When people aiming to become YouTubers decide to use "text-to-speech software," their biggest concern is commercial use.

Using "text-to-speech software" on YouTube with the expectation of advertising revenue or affiliate income is strictly considered **commercial use**.

Today, we will introduce four paid text-to-speech software options, explaining **whether commercial use is possible** and **how their licensing works**.

If you accidentally use text-to-speech software that is not for commercial use and violate the terms of service,

• Videos might be deleted, or accounts might be suspended,
• You might receive complaints from the text-to-speech software company,

various risks like these can be expected.

It is important to check the terms of use before purchasing to avoid violating them.

However, there is a lot of text-to-speech software in the world.

When comparing multiple software options,

• which ones are OK for commercial use,
• which ones are not,
• and which ones do not require a license purchase 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.

[Related Articles]

This article contains information as of January 2021.

We explain even newer recommended software with commercial OK in this article. Please take a look!

[2025 Latest] 10 Recommended Text-to-Speech Software! Also Introducing Free Software for Commercial Use | Text-to-Speech Software Ondoku

A comparison of recommended text-to-speech software! Carefully selected introductions from browser-based versions that require no installation to high-performance desktop types, including free tools that can be used commercially.

[Commercial Use OK] Explaining Paid Text-to-Speech Software

Today, we will introduce:

1. Ondoku
2. AI Talk
3. VOICEROID
4. CeVIO
5. Yukkuri-style voices (AquesTalk2)

Since there are many, we will pick out and briefly explain the **product introduction** and **commercial use, especially for individuals using them on YouTube**.

Ondoku (Free use is also OK)

The first one is the AI text-to-speech software, Ondoku.

The price ranges from free to 2,980 yen.

Ondoku allows free use and downloads without membership registration.

Registering increases the number of characters you can read for free.

It supports reading in Japanese as well as multiple languages.

For paid members, you can use from 200,000 to 1,000,000 characters per month.

Even free members can use it for commercial purposes without any particular restrictions.

If you are looking for speech software, we recommend trying Ondoku first.

Why not experience Ondoku's high-performance AI reading?

AI Talk

The second one is AI Talk.

This is a well-known, famous text-to-speech software developed by AI Inc.

Price starts from 16,500 yen.

In Kantan AI Talk 3, the following are available:

• 4 female voices
• 1 male voice
• 1 Kansai dialect female voice
• 1 Kansai dialect male voice

It also supports emotional expression, and you can experience speech synthesis on their website.

Regarding commercial use, the website states, "Basically, commercial and business use is not permitted."

However, looking closer, it says, "OK to use for narration in web video works for use on video-sharing sites (YouTube, etc.)."

Basically, for individuals, it seems that normal licenses can be used for content that earns advertising revenue from YouTube views.

However, using it for paid video production work or for YouTube videos that have sponsors and receive compensation is considered commercial use. It cannot be used within the scope of a normal license.

Please note that AI Talk does not sell commercial licenses. For corporate commercial use, there are separate corporate products.

VOICEROID

The third one is VOICEROID.

This software uses a speech synthesis engine provided by AI Inc. and is sold by AHS, Gynoid (Yoshimoto), Yamaha, and Internet.

Price starts from 15,180 yen.

It is text-to-speech software with a lineup of more than 20 character voices. Many sound sources are based on voice actors' voices, giving them high uniqueness.

Each voice fits the cute character illustration perfectly.

However, because the companies providing the sound sources vary, the terms of use differ slightly for each software.

Since the scope of commercial use also varies, considerable caution is required.

• Basically possible for individual use.
• For commercial use, check the terms of use for each (as the providing companies are different).
• For corporations, there is a different pricing structure.

*As of 2025, if you want to read with VOICEROID characters, "A.I.VOICE" and "A.I.VOICE2" are recommended.

A.I.VOICE2 Complete Guide! Detailed Explanation of the Successor to VOICEROID: Features, Installation, and Usage | Text-to-Speech Software Ondoku

Explaining the features and usage of A.I.VOICE2, which features characters like Kotonoha Akane/Aoi and Yuzuki Yukari, familiar from VOICEROID videos. Detailed introduction from installation to audio export.

CeVIO

The fourth one is CeVIO.

There was a free version of CeVIO until November 19, 2014, but currently, there is only a 30-day trial version. Price starts from 6,600 yen.

In CeVIO Creative Studio, currently on sale in 2021, there are three characters:

• Sato Sasara,
• Suzuki Tsudumi,
• Takahashi.

They can be purchased as a set of three or individually.

Regarding the concerning commercial use, especially for use in video postings like 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 activities such as an individual posting videos to YouTube, it can be used without purchasing a commercial license.

However, in that case, it is necessary to list the character name and state that it is CeVIO in the video description field.

For paid video production work, a paid commercial use license is required. The license fee requires an estimate, as no price was listed.

What is CeVIO AI? Detailed Explanation of Speech Synthesis Software Features, Usage, and Commercial Use | Text-to-Speech Software Ondoku

A complete guide to the AI singing synthesis software CeVIO AI. We explain the features of popular characters like Sato Sasara and Suzuki Tsudumi, how to purchase, and precautions for commercial use for beginners.

Yukkuri-style voices (Bouyomi-chan, AquesTalk2)

The fifth one is "Yukkuri-style" voices (AquesTalk2).

These are used as the speech synthesis engine for software and services like Bouyomi-chan.

Since Bouyomi-chan can be used for free, some people might overlook this, but depending on the software, you may need to purchase a license for commercial use.

The license fee is approximately 6,000 yen per year.

Read more about Yukkuri-style voice software in this article.

[2025 Latest] 5 Recommended Yukkuri Voice and Bouyomi Software | Complete Comparison of PC and Smartphone Apps | Text-to-Speech Software Ondoku

Carefully selected introduction to Yukkuri voice and Bouyomi software ideal for video production and game commentary. From PC to smartphone, we explain how anyone can easily create high-quality audio with the latest 2025 apps.

Summary

Today, we introduced paid text-to-speech software with an emphasis on commercial use.

Our overall recommendations are:

• If you want something simple and intuitive to use, Ondoku
• If you want to focus on detailed tuning and production, VOICEROID+

Since voice preference is subjective, please try the trial versions on the official websites.

Trying it out for yourself is the fastest way to find your favorite software.

I would be happy if you included me, Ondoku, among your choices.

We are working hard to create this, so we would be very happy if you could support us.

This has been a long post, but we'll leave it at that 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.

Text-to-speech software "Ondoku" can read out 5000 characters every month with AI voice for free. You can easily download MP3s and commercial use is also possible. If you sign up for free, you can convert up to 5,000 characters per month for free from text to speech. Try Ondoku now.

HP: ondoku3.com
Email: ondoku3.com@gmail.com