What is Stella AI? What does it do? Is it free or paid? You can also get a discount when you purchase a bundle with NTT Docomo.
【この記事にはPRを含む場合があります】

NTT Docomo has announced a new business partnership with SUPERNOVA, a startup based in Shibuya, Tokyo, that specializes in using generative AI technology.
Starting December 1, Docomo will offer SUPERNOVA’s generative AI service, Stella AI, through Docomo’s media and select stores.
Stella AI is a service designed to make generative AI easily accessible even to beginners. It offers a wide variety of “templates” that simplify instructions to the AI, allowing users to intuitively request tasks from the AI.
If you subscribe to one of Docomo’s plans, such as “eximo Poikatsu,” “eximo,” or “ahamo,” you can get a discount on the Stella AI Bundle. This discount gives you an 11-month discount on the monthly fee for Stella AI. This makes it easy for users who often use generative AI to access advanced models like Gemini, GPT, Claude, and NTT’s large-scale language model, Tsuzumi.
速報🎉
docomo STARTUPよりスピンアウトした株式会社SUPERNOVAが、生成AIのニュースタンダード「Stella AI」を提供開始 !https://t.co/hqTRiULKZ8 @PRTIMES_JP— docomo STARTUP (@docomo_startup) November 22, 2024
In June 2024, SoftBank Corporation started working with “Perplexity AI” to offer users of SoftBank, Y!mobile, and LINEMO a paid version of the AI search engine “Perplexity Pro” (usually priced at ¥2,950 per month) for free for one year. This could be a response to competition in the market.
This article explains the “Stella AI” service introduced by Docomo with its bundle discount. It covers what the service is, what it can do, and how much it costs.

- What is Stella AI?
- Here are some of the things that Stella AI can do and its features.
- Feature 1: Use AI with templates, which are simple and easy to use.
- 'Feature 2: You can use multiple AI models.
- Stella AI User Fees
- Does NTT Docomo's "Stella AI Set Discount" cost less?
- Devices that work with "Stella AI"
- "Stella AI" is an interesting topic for people interested in AI.
What is Stella AI?
(Source:Stella AI)
“Stella AI” is a generative AI service that combines multiple AI models, such as Gemini, GPT, Claude, and tsuzumi, and allows users to access them through a single service interface.
It has over 1,000 templates, which makes it easy to use for people who have never used generative AI or who have difficulty using AI effectively. You can easily give instructions to the AI by filling in the template prompts.
While many free AI services, like ChatGPT, don’t require an account, Stella AI is a great option for those who are unsure about using AI or have found creating prompts tricky. It makes it easy to incorporate AI into your daily life and work.

Note: This is not a matchmaking application.
Please note that there is a similarly named service called “Stella”, which is an AI dating service/app with an AI beauty. However, this is different from “Stella AI”, so be careful not to confuse the two.
Here are some of the things that Stella AI can do and its features.
Here are two features of “Stella AI”:
Feature 1: Use AI with templates, which are simple and easy to use.
A key feature of Stella AI is that it allows users to easily use AI with over 1,000 types of templates.
All you have to do is fill in the “blanks” in the templates. This makes it easier for people who “don’t know how to give instructions to AI” or “aren’t good at thinking of prompts” to use AI technology.
(Source:PR TIMES)
Another helpful feature is the ability to search for templates by category. This makes it easier for people who aren’t sure how to use AI or can’t imagine how it can help them in their daily lives and work. You can explore different AI applications by browsing categories. This helps you find practical ways to use AI, even if you don’t have many ideas or understanding of its potential uses.
(出典:PR TIMES)
One of the main features of Stella AI is that it is easy to use for beginners.
‘Feature 2: You can use multiple AI models.
Stella AI has another feature: it can use multiple AI models.
Stella AI can use the following latest AI models and image generation AI:
<StellaAI compatible AI models>
Gemini 1.5 Pro / Gemini 1.5 Flash / GPT-4o / GPT-4o mini / o1-preview / o1-mini / Claude 3.5 Sonnet / tsuzumi / Imagen 3 / DALL-E 3
You can access all of these AI models through Stella AI’s website or mobile apps. This allows users to use AI without having to switch between different websites or apps. This is helpful for beginners and experts alike.
If you’re thinking about paying for individual AI services, Stella AI might be a better deal than paying for each AI service separately. This makes it a service worth considering for potential users.
Stella AI User Fees
Stella AI is a paid service that you can subscribe to monthly.
There are three pricing plans to choose from: “Light,” “Standard,” and “Premium.”
(Source:PR TIMES)
The cheapest “Light Plan” is available for 980 yen per month (not including tax), but it can only be used 250 times per month. You may need the “Standard Plan” or “Premium Plan” once you start using it.
If you’re new to using AI, it might be hard to predict how often you’ll need it. However, it’s important to note that additional questions within the same thread (conversation flow) are also counted as “one use.” This means that the more you use AI, the more you’ll use without even realizing it.
If you’re thinking about using Stella AI, you can expect to pay a monthly fee of 1,480 yen (not including tax).
Please note that the number of times an AI model is used varies. “o1-preview” (OpenAI), which can handle complex tasks, uses 10 counts. “o1-mini” (OpenAI), “Imagen3” (image generation AI), and “DALL-E3” (image generation AI) each use 3 counts.
Does NTT Docomo’s “Stella AI Set Discount” cost less?
(出典:PR TIMES)
As mentioned above, users who have subscribed to NTT Docomo’s “eximo Point Activation,” “eximo,” or “ahamo” plans can get a discount on Stella AI. This discount gives you a discount equal to the monthly fee of Stella AI for 11 months.
If you’re eligible, it’s more economical to take advantage of the Set Discount, so visit the special Stella AI Set Discount website.
Click here for the special Stella AI bundle discount website.
Devices that work with “Stella AI”
Stella AI can be used on web browsers, and it is also available as an app for iPhones and Android phones. A version for Google Chrome is scheduled to be released in mid-December 2024.
<Stella AI Compatible Devices>
iOS App
Android OS App
Web Browser (Smartphone/Tablet/PC)
Google Chrome Extension (Expected to launch in mid-December 2024)
“Stella AI” is an interesting topic for people interested in AI.
As shown, Stella AI, which is partnered with NTT Docomo, is a service that makes AI easier for beginners to use.
Some Docomo shops will start providing support for Stella AI and Stella AI Set Discount applications. Starting in mid-January 2025, some Docomo shops will also offer “generative AI courses.” This will likely increase the number of AI users, including seniors who wanted to try AI but didn’t know how.
It will be interesting to see how Stella AI impacts people’s lives in the future.
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