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Learn more →AI Dialogue Partner
Sai＊aus
Saiaus is an AI dialogue partner for reflection, thinking, creativity, and meaningful conversation. It helps you organize thoughts, explore questions, and turn inner dialogue into clearer insight.
Designed for people who think, write, create, research, and reflect with AI.
Why Saiaus?
Not answers. Understanding.
Saiaus is designed for people who want more than a fast answer. It supports continued thinking, deeper perspectives, and dialogue that unfolds at your own pace.
We don't replace your thinking.
We help you continue it.
Privacy First
Designed with privacy-conscious usage, clear policies, and user-controlled access.
Learn more →AI Powered
Supports reflection, thinking, creativity, research, and meaningful conversation with AI.
Learn more →Cross Platform
Available across Web, iPhone, and Android so your thinking environment can travel with you.
Learn more →Research
Explore the ideas, questions, and research foundations that continue to shape Saiaus.
Learn more →Philosophy
Discover the principles behind a quieter, more reflective approach to dialogue with AI.
Learn more →Features
Think, explore, research, and create with AI.
Saiaus supports the inner work of thinking: organizing ideas, exploring questions, examining evidence, and turning dialogue into insight.
Think Clearly
Organize thoughts, deepen reflection, and clarify what you are trying to understand.
Brainstorm
Explore ideas, generate new perspectives, and expand creative possibilities.
Research
Structure questions, examine evidence, and move from curiosity to clearer inquiry.
Create Insights
Turn conversations into meaningful understanding that can support writing, planning, and creation.
Use Cases
Built for the moments when thinking matters.
Whether you are reflecting, writing, researching, or exploring new ideas, Saiaus supports deeper conversations with AI.
Reflection
Clarify thoughts and deepen self-reflection.
Writing
Develop articles, notes, and creative drafts.
Brainstorming
Generate perspectives and expand possibilities.
Research
Organize questions and evaluate information.
How It Works
From a question to a clearer way forward.
Begin with what is on your mind. Saiaus helps you explore it through dialogue and turn the conversation into clearer understanding.
Share what you are thinking
Start with a question, idea, concern, or unfinished thought in your own words.
Explore through dialogue
Continue the conversation, examine different perspectives, and clarify what matters.
Turn dialogue into insight
Organize the outcome into understanding you can use for reflection, writing, research, or action.
Pricing
Choose the plan that fits your way of thinking.
Begin for free, then move to a wider context window when your conversations, projects, and ideas need more room.
Saiaus Standard
Free
A quiet place to organize what matters now.
- Up to approximately 2,000 characters per input
- Designed for everyday reflection and short-to-medium conversations
- Useful for notes, learning, writing support, and idea organization
Saiaus Plus
¥500/ month, tax included
For deeper dialogue across growing themes and longer material.
- Up to approximately 8,000 characters per input
- Supports longer context and continuing topics
- Useful for documents, presentations, creative work, and code excerpts
Saiaus Pro
¥1,200/ month, tax included
For complex themes, long-term projects, and wider context.
- Up to approximately 20,000 characters per input
- Supports long-form and multi-theme context
- Useful for large documents, code analysis, research, and long-term creation
Plan purchases and plan changes are managed inside Saiaus. Open Saiaus, sign in, and go to Expert Plan to start, upgrade, or change your plan.
FAQ
Frequently asked questions.
Everything you need to know before getting started with Saiaus.
What is Saiaus?
Saiaus is an AI dialogue partner designed to support reflection, thinking, writing, creativity, research, and meaningful conversation.
Is Saiaus free?
Yes. The Standard plan is free. Plus and Pro are optional paid plans for people who need longer inputs and wider conversational context.
Which platforms are supported?
Saiaus is designed for Web, iPhone, and Android so you can continue your thinking environment across supported devices.
How is my data handled?
Saiaus is designed with privacy-conscious access and user-controlled account flows. Full details are provided in the Privacy Policy.
Can I upgrade my plan later?
Yes. You can begin with Standard and move to Plus or Pro later when your conversations, projects, or research need more room.
How can I contact the team?
A dedicated Contact page will provide the official support route for questions about Saiaus, accounts, plans, and policies.
Ready to think with Saiaus?
Begin with the question, idea, or unfinished thought that is on your mind. Open Saiaus and continue the conversation.