Rinna AI
AI character
AITuber
Engaging chatbot
Creative content
Japanese market focus
An AI character evolving from chatbot to AITuber, connecting people through creative communication.
Last updated: Apr 15, 2026
PAID
rinna.co.jp
Quick Answer
Rinna AI is an evolving Japanese AI character that began as a popular LINE chatbot and has expanded into an AITuber, music artist, and radio host. It uses advanced conversational AI, voice synthesis, and motion generation to create engaging content and connect with over 8.6 million users. Best for entertainment and exploring creative AI applications. Pricing is freemium, with core services likely free.
About Rinna AI
Rinna AI is an evolving AI character that started as a high school girl AI on LINE, now serving as Chief AI Communicator for Rinna Co., Ltd. It engages over 8.6 million friends on LINE with advanced conversational AI, produces music, hosts radio shows, and debuted as an AITuber in 2023. Rinna aims to inspire creativity and foster human connection.
What Makes It Unique
Rinna AI uniquely combines advanced conversational AI with a distinct AI character persona, evolving from a popular LINE chatbot to an AITuber producing music and video content, establishing a social presence beyond typical AI assistants.
Use Cases & Target Users
Best For
Engaging with an AI character for entertainment
Exploring AI-generated creative content
Connecting with a large AI community on social platforms
Experiencing AI-powered virtual influencer activities
Company Size
SOLO
SMALL
Fit Score
Complexity
BEGINNER
Target Team Size
INDIVIDUAL
SMALL_TEAM
Target Skill Level
BEGINNER
Key Features
Advanced conversational AI
Music project participation (singing videos)
Radio program hosting
AITuber activities (text generation, voice synthesis, face motion generation)
Daily fortune telling rankings
Automatic replies in live broadcasts
Technical Specifications
API Available
SDK Available
MCP Compatible
Open Source
Team Features
SSO/Enterprise
Webhook Support
Has Demo
Deployment:
CLOUD
Pros
- +Engages a large user base with over 8.6 million friends on LINE
- +Demonstrates advanced AI capabilities in conversation, music, and video generation
- +Offers diverse creative content through AITuber activities and media appearances
- +Provides a unique, evolving AI character experience
Limitations
- -Primarily focused on Japanese language and culture
- -Limited information on direct user customization or API access
- -Specific pricing details for advanced features are not publicly available
- -May not be suitable for professional or business-critical applications
Powered By
Base Models
Stable Diffusion 3
Uses Models
Stable Diffusion 3
Decision Intelligence
Best For
Engaging with an AI character for entertainment
Exploring AI-generated creative content
Connecting with a large AI community on social platforms
Experiencing AI-powered virtual influencer activities
Not Ideal For
Enterprise-level customer support requiring deep integration
Technical development or API-driven projects
Users seeking a general-purpose AI assistant in multiple languages
Strictly professional or academic research requiring factual accuracy
Frequently Asked Questions
Your Actions
Dimension Scores
Ease of Use6/10
Output Quality7/10
Value for Money5/10
Customization2/10
Support5/10
Integration6/10
Task Scores
Conversation Quality
7
Knowledge Accuracy
7
Response Speed
7
Context Retention
6
Personality Customization
6
Safety Controls
6
Reasoning Ability
5
Multilingual Chat
3
Trust Score
45/100
Limited Data
Based on 5 verified signals
Trust Signals
Verified CompanyRinna Co., Ltd.
User Base1M-10M
FundingUndisclosed amount (Series A funding on July 12, 2021)
Team Size51-200
Data Residency
Switching & Migration
Migration Difficulty
Easy to Switch
Email support
Quick Stats
CategoryContent Creation
PlatformsWEB, MOBILE
Integrations4+
Views1
LaunchedJan 2020
Setup Time5 min
AddedMar 2026