alt Inc.’s AI GIJIROKU improves speaker identification accuracy to 99.62%
Increased accuracy with state-of-the-art generative AI technology enables more real-time and accurate minutes creation

alt Inc. (, the Japan-based developer and distributor of Personal Artificial Intelligence (P.A.I.®️) and AI clone technology (head office: Minato-ku, Tokyo; CEO: Kazutaka Yonekura), is pleased to announce that the speaker identification accuracy of its AI GIJIROKU automated meeting minutes tool has further improved from 98.6% to 99.62%.* The highly accurate speaker identification capability makes it possible to take real-time minutes of meetings and interviews with multiple participants more accurately than ever before.


*99.62%: As of March 12, 2024, based on in-house research. The highest accuracy of 99.62% was achieved through accuracy verification testing by alt’s AI GIJIROKU development team.



AI GIJIROKU is equipped with personalization technology that improves transcription accuracy with each use through the learning capabilities of AI. It supports real-time simultaneous translation in 35 major languages and runs on an advanced model that boasts 99.8% speech recognition accuracy. The tool specializes in industries such as finance, healthcare, pharmaceuticals, chemistry, and construction.


The software can personalize sentences that are automatically learned from the user's SNS, emails, calendars, and dictionary data, and identify the speaker via voiceprint. Leveraging our large language model LHTM-2, the platform offers a range of AI features, including transcription, summarization, identification of key points, and the creation of to-do lists, as well as the Personal Agent function. 


Our R&D team has recently developed a speaker identification algorithm that more accurately captures the characteristics of the user's voice while maintaining high-speed identification in real time. This new algorithm has improved the accuracy of speaker identification from 98.6% to 99.62%, making AI GIJIROKU more convenient to use, especially in multi-person conversations and meetings.


With the diversification of work styles and working environments, online and hybrid meetings and presentations are becoming increasingly common across companies and industries. The further improvement of AI GIJIROKU’s speaker identification accuracy will greatly reduce the burden on users in taking minutes and sharing information. We believe that this functionality will contribute to the productivity of employees, especially in multi-person conversations and meetings, by enabling them to take minutes accurately and quickly without missing any important information during the meeting.


alt and AI GIJIROKU will continue to expand functions and advance core technologies to meet user needs. By supporting the DX of each individual's daily work, we will contribute to the realization of a world where people can focus exclusively on work that people do best.



▶"AI GIJIROKU" Most Recent Update Information

February, 2023   Equipped with "AI summary function":here

March, 2023         Equipped with a "Clearing function":here

                 Equipped internal voice recording function (alt virtual microphone):here

                 "AI GIJIROKU 100" is launched.:here

                 Equipped with "AI Assistant Function":here

June, 2023             Equipped with "Personal Agent":here

September, 2023  Equipped with "Personal Agent":here



▶For inquiries regarding the introduction of AI GIJIROKU



■ "Minutes already taken at the end of the meeting” 
      What is the AI GIJIROKU automatic transcription tool?

AI GIJIROKU is an automated meeting minutes tool that improves transcription accuracy with each use of its AI learning function. It supports real-time simultaneous translation in more than 35 major languages and boasts 99.8% speech recognition accuracy, even in specialized industries such as finance, medical, pharmaceutical, chemical, and construction. It can personalize sentences automatically learned from users' SNS, e-mail, and dictionary data, and personalize speaker identification by identifying users' voiceprints.



■ About alt Inc.

Established in November 2014, alt Inc. is a venture firm with the mission of freeing humankind from non-creative/unproductive labor through the creation of P.A.I. ® (Personal Artificial Intelligence) and AI clones. We also develop and provide SaaS products such as AI GIJIROKU, which utilizes voice recognition technology born from the development of AI dialogue engines. As of September 2023, our cumulative funding has reached over 8 billion yen.



<Media Inquiries to:>

Misako Nishizawa (Media Relations)


<Alliance Inquiries to:>

We provide AI solutions and support regardless of genre, including IT, finance, construction, logistics, media, manufacturing, retail, and service industries.

Please feel free to contact us.


Hitomi Anazawa (AI SaaS Business Department)