Leave it to Sunday

Joined October 2025
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We just raised $165M to end robotics demos and deploy the world's first autonomous home robots into households this year.
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Personal update: I've joined @sundayrobotics. Two questions ran through my whole PhD: how to learn from scalable human data, and how to build general-purpose robots. Trying to answer them convinced me of one thing: general-purpose robots will never come from better models alone. It takes tight iteration across data, hardware, model, control, and evaluation. Every loop you can shorten matters. My first dinner with @tonyzzhao and @chichengcc turned into a four-hour conversation. I walked away realizing how much we saw eye to eye: scale the data, think full-stack, start from the problem you want to solve instead of the idea you want to win. So getting to work at Sunday is a dream come true, a place to solve generalization with the full breadth of human data and system-level thinking, and keep chasing the questions I care most about. After my first month in, two things stand out: Sunday’s full-stack team iterates unbelievably fast, and the energy when everyone is aligned on the same vision is electric. This speed and energy is exactly why what used to feel impossible now feels close. Home robots, the frontier physical AI in the hands of ordinary people, were long seen as a distant dream . At Sunday, I watch this dream take shape every day. I'm convinced there's real research-market fit here: foundation models and home robots point toward the same north star, generalization, not specialization, because every home is different. Excited for the zero-to-one moment ahead.
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1,709 → 72,000 sq. ft. in two years Welcome to Sunday’s new HQ.
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@sundayrobotics went from @tonyzzhao and @chichengcc in an apartment to 70 people, 1000 memory developers and over $1B valuation in just 18 months. Tony breaks down the nuts and bolts of building a fullstack robotics company from scratch on this week's episode of Good Company 🔩 @conviction
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We’re hiring in-house Memory Developers to shape how Memo perceives and interacts with the world. The Role: 📍 On-site & flexible (3–5 days/week). 👟 Record high-quality task demos (e.g. folding t-shirts, arranging shoes, etc). 🧠 Beta-test new hardware and software. 📈 High growth potential into management. Apply below if you’re detail-oriented, curious about AI, and interested in contributing to the future of autonomous home robotics.
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Memo on @Nasdaq today!
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Sunday Robotics' @tonyzzhao says they're using gloves worn by people doing household chores to create the dataset they'll use to train their foundation model: “This gives us really high-quality data, but also a really high diversity and quantity of data.”
Skill Capture Glove aligns the hands, but what about the rest of the body? Human collectors vary in height and arm length, and are also visually different. We developed Skill Transform, a method that converts glove data into equivalent robot data with a 90% success rate.
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The humanoid robot market is getting crowded. So we sent @dagsen all around America to find the robot of his dreams. Featuring exclusive access to @sundayrobotics. Watch our latest video now. 00:00 Hello, World! 00:35 Humanoids summit 00:42 Meet Codey– humanoid kid robot 01:54 Sunday Robotics 02:00 Meet Memo– humanoid chore robot 02:48 Memo’s fashion 03:30 A Generative future for Memo 04:15 Memo makes coffee 05:00 The dexterity frontier 05:30 Training Memo with the skill capture glove 06:35 Dagsen’s star rating 06:50 CES 2026 07:15 Meet IntBot– hospitality humanoid robot 08:00 Meet Atlas– Boston Dynamics 09:00 Is the future finally happening?
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Robotics demos → real-world deployment. 🤖 We're proud to lead @sundayrobotics' $165M Series B, which will aim to move its robot – Memo – into real homes to take on time-intensive chores. Learn more: sunday.ai/journal/series-b
We just raised $165M to end robotics demos and deploy the world's first autonomous home robots into households this year.
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It was such a pleasure hosting @clairejyz at the Sunday office! Claire has a rare gift for weaving technical details into a thoughtful narrative with craft and personality. We’re grateful to be featured in her first long-form profile and for the chance to share a glimpse of our world. Watch the full story below! 📽️
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Sunday's dishwasher-loading, laundry-folding robot starts beta testing this year. CEO Tony Zhao explains how the robot learns — and why it wears a hat bloom.bg/3NAxIxQ
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❤️💙💚💖 @tonyzzhao
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Incredibly excited!
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. ->🧵
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Beta coming this year!
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. ->🧵
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Memo is a robot that uses AI to perform household tasks effectively. Today @sundayrobotics announced its Series B, and we’re proud to be investors. Training robots for the home is hard — the environment is messy, dynamic, and full of edge cases. So Sunday is training robots directly on real households. Founders @tonyzzhao and @chichengcc built a glove-based system that lets hundreds of contributors record everyday tasks in their own homes, creating high-fidelity demonstrations that feed directly into robot learning. Home robotics will be defined by the companies that learn fastest from real homes. Sunday is building that loop. More here: baincapitalventures.com/insi… @aaref @amandamhuang
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4/ Join us build the robots that belong in your home: sunday.ai/careers
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3/ We're grateful to @Coatue for leading our round and to @thomas_coatue for joining our board. We welcome @BainCapVC, Fidelity Management and Research Company, Tiger Global, @Benchmark, @Conviction, Xtal Ventures, and others to our Series B.
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2/ The robotics industry has long been defined by impressive demos. But deploying autonomous, dexterous manipulation in real-world homes has never been achieved. We’re here to break that cycle with our public beta and document the journey for all. Read more: sunday.ai/journal/series-b
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