Stephen

hardware @sundayrobotics

[Tony Zhao @tonyzzhao]

Introducing ACT-2 Preview

The first robotics model to unify broad generalization with high reliability. A single fine-tuning example can teach Memo a new behavior that generalizes.

Zero shot, real unseen homes, 99% success rate.

[Sunday @sundayrobotics]

We just raised $165M to end robotics demos and deploy the world's first autonomous home robots into households this year.

[Tony Zhao @tonyzzhao]

We raised $165M at a $1.15B valuation to stop doing demos.

2026 is about 1) deployment and 2) research. We will start shipping Memo with our new frontier models in a few months.

Our series-B is led by Coatue, with Thomas Laffont joining the board. ->🧵

[WIRED @WIRED]

Sunday Robotics has a new way to train robots to do common household tasks. The startup plans to put its fully autonomous robots in homes next year. https://t.co/QcnaIRKVWO

[Connor Hughes @conhugh]

@shyyang is a visionary

[Nishant Desai @nishantsdesai]

No edits. Nothing up our sleeves.

[Tony Zhao @tonyzzhao]

Today, we present a step-change in robotic AI @sundayrobotics.

Introducing ACT-1: A frontier robot foundation model trained on zero robot data.

- Ultra long-horizon tasks
- Zero-shot generalization
- Advanced dexterity

🧵->

[Stephen @stephengrinager]

It's time to show the world what we're made of(hint: it's not false promises) 😉
#SundayRobotics

[Stephen @stephengrinager]

@sundayrobotics Time to show the world what we've been working so hard on! I feel incredibly fortunate to be a part of this team.

[Sunday @sundayrobotics]

After 18 months in stealth, dozens of prototypes, millions of real-home demonstrations, and one final all-nighter, we’re thrilled for you to say hello to Memo