One AI. Yours
TAU runs entirely on your iPhone. No cloud. No data leaving your device. An intelligence that learns from you over time and never forgets
Build with
Itrunsentirelyonyourdevice
Itlearnsfromyou,privately,silently,continuously
Itrememberseverything
Anditneverleavesyourside
Itrunsentirelyonyourdevice
Itlearnsfromyou,privately,silently,continuously
Itrememberseverything
Anditneverleavesyourside
Itrunsentirelyonyourdevice
Itlearnsfromyou,privately,silently,continuously
Itrememberseverything
Anditneverleavesyourside
The TAU Standard
Day 1
Your first conversation starts a relationship. TAU begins building a private picture of who you are ,your tone, your topics, your rhythm.
Day 1
Your first conversation starts a relationship. TAU begins building a private picture of who you are ,your tone, your topics, your rhythm.
Week 1
After a week of conversations, TAU understands how you think and how you communicate. Every response feels closer to what you actually needed.
Week 1
After a week of conversations, TAU understands how you think and how you communicate. Every response feels closer to what you actually needed.
Month 1
A month in, TAU doesn't wait for you to ask. It connects the dots between your past conversations and what matters to you right now.
Month 1
A month in, TAU doesn't wait for you to ask. It connects the dots between your past conversations and what matters to you right now.
Built different. By design.
On-device inference
TAU runs entirely on your iPhone. No server, no API call, no internet required. Every response is generated locally, instantly, privately, always available even without a signal.
On-device inference
TAU runs entirely on your iPhone. No server, no API call, no internet required. Every response is generated locally, instantly, privately, always available even without a signal.
Persistent memory
TAU remembers every conversation across every session. No more repeating yourself. No more starting from scratch. Your context lives on your device, permanently, and grows with every exchange.
Persistent memory
TAU remembers every conversation across every session. No more repeating yourself. No more starting from scratch. Your context lives on your device, permanently, and grows with every exchange.
Mamba-2 architecture
TAU is built on Mamba-2, a next-generation SSM architecture that goes beyond Transformers. O(1) per-step inference means TAU thinks faster, uses less memory, and scales to longer conversations without slowing down.
Mamba-2 architecture
TAU is built on Mamba-2, a next-generation SSM architecture that goes beyond Transformers. O(1) per-step inference means TAU thinks faster, uses less memory, and scales to longer conversations without slowing down.
Continuous learning
TAU doesn't stay static. Through continuous LoRA adapter updates, TAU quietly learns from your interactions over time, becoming more aligned with how you think, write, and communicate. No retraining. No interruption.
Zero data collection
TAU collects nothing. No conversations are logged, no data is sent to any server, no profile is built outside your device. What you tell TAU stays between you and your iPhone. Always.
Zero data collection
TAU collects nothing. No conversations are logged, no data is sent to any server, no profile is built outside your device. What you tell TAU stays between you and your iPhone. Always.
Apple Silicon optimized
TAU is built for Apple Silicon from the ground up. Optimized for the Neural Engine on iPhone 15 Pro and beyond, TAU delivers fast, fluid responses while preserving battery life. No compromises.
Apple Silicon optimized
TAU is built for Apple Silicon from the ground up. Optimized for the Neural Engine on iPhone 15 Pro and beyond, TAU delivers fast, fluid responses while preserving battery life. No compromises.
TAU is currently in training
Join the waitlist to be first
Next-gen AI features
Always there when you need it
Wake up to an AI that already knows you
Writing in your style
Write like yourself, faster
Offline always
No signal. No problem
Remembers last week
It remembers. You don't have to.
Learns your priorities
Gets smarter the more you use it
Private by default
Your thoughts stay yours
Instant response
Faster than you expect
Yours forever
One AI. Your whole life
Next-gen AI features
Always there when you need it
Wake up to an AI that already knows you
Writing in your style
Write like yourself, faster
Offline always
No signal. No problem
Remembers last week
It remembers. You don't have to.
Learns your priorities
Gets smarter the more you use it
Private by default
Your thoughts stay yours
Instant response
Faster than you expect
Yours forever
One AI. Your whole life
Next-gen AI features
Always there when you need it
Wake up to an AI that already knows you
Writing in your style
Write like yourself, faster
Offline always
No signal. No problem
Remembers last week
It remembers. You don't have to.
Learns your priorities
Gets smarter the more you use it
Private by default
Your thoughts stay yours
Instant response
Faster than you expect
Yours forever
One AI. Your whole life
"I built TAU because I wanted an AI that truly knows me — not one that forgets everything the moment I close the app."
We’ve got answers
What is TAU ?
How does TAU remember me without cloud ?
Which devices will TAU support ?
When is TAU Mini launching ?
Is my data safe ?