S

Sunday Robotics

Autonomous household robot with data-driven learning

Overview

Sunday Robotics is building Memo, an autonomous home robot that helps families with chores like washing dishes, laundry, and tidying. Memo moves on a wheeled base with a soft silicone shell and uses a telescoping arm to reach from floor to high shelves; it learns by watching humans through a foundation model called ACT-1 trained on real-world chores collected with the Skill Capture Glove. The company differentiates itself by using large-scale “in-the-wild” data (about 10 million home routines from 500+ homes) and a non-humanoid design that emphasizes safety, while aiming for a price close to premium consumer devices rather than cars. Its goal is to make autonomous home robots affordable and deployable, moving from demos to a Founding Family Beta program that delivers robots to selected households.

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About Sunday Robotics

Simplify's Rating
Why Sunday Robotics is rated
C+
Rated B on Competitive Edge
Rated C on Growth Potential
Rated C on Differentiation

Industries

Robotics & AutomationHardwareConsumer SoftwareAI & Machine Learning

Company Size

201-500

Company Stage

Series B

Total Funding

$200M

Headquarters

Mountain View, CA

Founded

2024

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What believers are saying

  • Sunday's website says beta launches late 2026 after raising $165 million in March.
  • ACT-2 Preview posted 99.1% laundry-folding success across 785 trials in unseen homes.
  • Benchmarked manufacturing cost sits near $20,000, and scale should cut it by half.

What critics are saying

  • Memo is still unavailable for purchase, and Sunday targets only 50 beta households.
  • Hand-built Memo costs $20,000 today, delaying consumer pricing and acceptable hardware margins.
  • A serious home injury or fire during the 2026 beta kills the brand overnight.

What makes Sunday Robotics unique

  • Tony Zhao and Cheng Chi built ACT-1 and ACT-2 from human-demonstration household data.
  • Memo's wheeled base and telescoping torso prioritize stability, reach, and safer indoor operation.
  • Skill Capture Glove data from 500+ homes gives Sunday a rare real-world dataset.

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Funding

Total Funding

$200M

Above

Industry Average

Funded Over

2 Rounds

Series B funding is typically for startups that have proven their business model and need more funding to expand rapidly—often by entering new markets or adding more products. Investors are usually venture capital firms that specialize in later-stage investments.
Series B Funding Comparison
Above Average

Industry standards

$35M
$45M
$65M
$100M
$165M

Benefits

  • Meal Benefits
  • Flexible Work Hours

Growth & Insights and Company News

6 month growth

2%

1 year growth

-3%

2 year growth

-3%
ROBOTio s.r.o.
Nov 2nd, 2026
Sunday Robotics: Who is behind Memo and can you hire it?

Sunday Robotics: Who is behind Memo and can you hire it? Article summary. Sunday Robotics develops a domestic robot called Memo on wheels. You cannot hire it for your event yet, not even from ROBOTio. Who founded the company, what can Memo do, and which robot should you deploy instead? Sunday Robotics is a California-based company from Mountain View that develops a domestic robot called Memo. It is not yet available for corporate events: Memo is not sold, not available in Europe, and ROBOTio does not offer it for hire. Its beta programme for around 50 households in the USA is scheduled for the end of 2026, with commercial sales to follow. If you need a robot that welcomes guests at your event, speaks and entertains, ROBOTio deploy Unitree G1 and H2 from its own fleet, always with operators. ## Who is behind Sunday Robotics Sunday (Sunday Inc.) is based in Mountain View and was founded in 2023. It was founded by Stanford roboticists Tony Zhao (CEO) and Cheng Chi (CTO). They are the authors of ALOHA, ACT, Diffusion Policy and UMI methods - approaches that have influenced how robots learn to manipulate objects. Brief timeline: - **End of 2024:** single-arm prototype that straightened shoes, - **19 November 2025:** Memo unveiled and company emerged from stealth, - **2026:** development and beta preparation continue, the company has around 70 employees, - **End of 2026:** beta programme planned for selected households in the USA. The price of Memo has not been officially announced. You can find a full overview of the brand on the page [Sunday Robotics](https://robotio.eu/brands/sunday-robotics). ## What is Memo Memo is not a classical humanoid with legs. It is a torso with two arms mounted on a wheeled column. According to the manufacturer and press reports, it measures approximately 170 cm and weighs 77 kg. Instead of fingers, it has gripper hands. The manufacturer describes it as a domestic robot. Full specifications are summarised on the [Sunday Memo](https://robotio.eu/sunday-memo) profile. Key specifications: - **Movement:** wheeled base, speed approximately 1 m/s, intentionally half the pace of human movement, - **Reach:** from floor to approximately 2.1 m vertically, 0.8 m horizontally, - **Degrees of freedom:** approximately 20, with 7 per arm, - **Battery life:** approximately 4 hours, charged to 80% in about an hour, - **Safety:** soft silicone cover with no sharp edges, software speed limits and compliant control, so the robot can be gently pushed aside by hand. ## What makes Memo different: it learns from human demonstration The key difference is in data collection. People record household tasks using their own hands with the Skill Capture Glove, which mirrors the robot's kinematics. According to the manufacturer, more than 2,000 gloves have generated approximately 10 million demonstrations across 500+ households. The foundational ACT-1 model was trained on this data. Its successor, ACT-2, is announced for 2026. In demonstrations, Memo handles tasks such as: - loading the dishwasher: a path of approximately 40 m, 33 interactions with 21 objects including glassware, - folding laundry and socks, - preparing espresso, - putting items away in their proper places. For event organisers, this is an interesting indicator of the industry's direction. The robot is not programmed move by move, but learns from human work. However, this does not mean it is intended for the stage or exhibition booth. ## Can you get Memo for your event in Czech Republic and Europe? Not yet. Summary of the current situation: - **Event hire:** no, ROBOTio does not offer it, - **Sales and import:** no, ROBOTio is monitoring European availability, - **Europe:** Sunday is only discussing the USA at this stage, - **Intended use case:** household work, not events. Moreover, Memo is at a stage where its behaviour in household environments is being refined. For an event, you need something different: a robot that captivates guests from a distance, responds to interaction and fits into your programme. ROBOTio can notify interested parties if the situation changes, and ROBOTio can advise on cleaning robots for hotels and care facilities once they become available. An earlier overview is also available in the article [Sunday Memo: specifications, availability and roles for events](https://robotio.eu/blog/sunday-memo-domaci-robot-na-kolech-akce). ## What to deploy instead of Memo: Unitree G1 and H2 For events, ROBOTio has its own fleet of [Unitree](https://robotio.eu/brands/unitree) robots. The [Unitree G1](https://robotio.eu/unitree-g1-basic) at 135 cm tall (R.U.D.A. and R.I.C.O.) is complemented by the larger H2 at 180 cm. ROBOTio can deploy up to 4 of them at a single event. Each robot is accompanied by two operators throughout. What guests experience: - the robot speaks the language in which the guest addresses it (13 website languages), - you approve the character and dialogue in advance, - the robot maintains balance and movement independently, whilst the operator controls direction and gestures, - it can greet, host, dance and pose for photographs. A more detailed comparison of its full offer can be found in the [robot models](https://robotio.eu/models) overview. Typical applications are described on the pages [robot for corporate events](https://robotio.eu/robot-hire-by-event-type) and [robot for trade shows](https://robotio.eu/robot-hire-by-event-type). ### Proof in practice At the Brilon x Aquatherm trade show at PVA Expo Letňany, video from the robot's booth achieved over 2 million views, see [case study from Letňany](https://robotio.eu/case-study/pva-letnany-otevreni-haly). In Paris, three humanoids opened a company leadership meeting, see [TE Connectivity ALM Paris 2026](https://robotio.eu/case-study/te-connectivity-alm-paris-2026). ## How to proceed when planning your event 1. Describe your objective: welcoming guests, hosting, entertainment or content for social media. 2. Specify the location, date and number of guests. 3. Select a model: G1 for close interaction, H2 for greater impact on stage. 4. Approve the character and dialogue. 5. Receive a quote within 24 hours. If you are looking for a robot for cleaning in a hotel or care home, please contact ROBOTio as well. ROBOTio monitor the market and can advise you on what is currently feasible. ## Frequently asked questions ### Can you buy or hire Sunday Memo? No. Memo is not yet available for purchase. The beta programme for approximately 50 households in the USA is scheduled for the end of 2026, and ROBOTio does not offer it. ### Is Memo a humanoid? It has a human-like torso, head and two arms, but a wheeled column instead of legs and gripper hands instead of fingers. The manufacturer describes it as a domestic robot. ### Will Memo be available in Europe? Sunday has only announced availability in the USA so far. ROBOTio is monitoring European availability and will notify interested parties on its list. ### What does ROBOTio offer instead of Memo? Unitree G1 and H2 humanoids with two operators per robot, language-adapted character and deployment in Czech Republic, Slovakia, Europe and the Middle East. ## Do you want a robot for your event? Describe your event to ROBOTio and ROBOTio will respond within 24 hours with what ROBOTio can offer. Pricing is determined individually. Submit a non-binding enquiry through the [humanoid robot hire](https://robotio.eu/robot-rental) page. Want to see a humanoid at your own event? Find out how to rent a humanoid robot with its own operators. * Sunday Robotics * Sunday Memo * domestic robots * Unitree G1 * Unitree H2 * robot hire for events About ROBOTio. ROBOTio helps companies rent, demonstrate and integrate humanoid robots: Unitree G1 and H2 for events, trade fairs, conferences and marketing campaigns - always with its own operators.

TechieXpert
Jul 18th, 2026
Sunday Robotics debuts ACT-2 Preview, achieving 99.1% reliability for in-home AI robots.

Sunday Robotics debuts ACT-2 Preview, achieving 99.1% reliability for in-home AI robots. July 18, 2026 Reading Time: 3 minutes Key Takeaways: * Officially launched as a direct upgrade to November 2025's ACT-1, the ACT-2 Preview focuses strictly on reliability and long-tail environmental variations rather than controlled lab setups. * Operating on Sunday's home robot, Memo, ACT-2 achieved a 99.1% success rate during live testing, successfully completing 778 out of 785 autonomous laundry folds across unfamiliar households. * The model can absorb a brand-new behavior from just one fine-tuning demonstration and successfully propagate that skill across entirely new physical environments. User Score Sunday Robotics unveils the ACT-2 Preview, a groundbreaking robotics foundation model showcasing a 99.1% zero-shot success rate in folding laundry across completely unseen, real-world homes. Table of Contents The breakthrough mechanics behind ACT-2. The core engineering breakthrough of ACT-2 lies in its ability to combine broad, generalized environmental awareness with high-precision physical performance. Advanced pre-training framework. Sunday Robotics trained ACT-2 on a highly specialized dataset of sensorized human movement data. Following this initial phase, the model underwent automated, aggressive post-training loops on Sunday's flagship hardware, the Memo home robot. This data flywheel allows the system to achieve rapid performance gains, enabling the robot to master a completely new behavioral variation from a single fine-tuning prompt and replicate it seamlessly across foreign environments without requiring house-specific recalibration. Redefining industry success metas. To combat the industry trend of highly edited, single-take robotic video demonstrations, Sunday has introduced the "Solve" evaluation framework. This metric grades home robotics deployments across three distinct operational axes: Performance (the accuracy of the action), Scope (the diversity of environments the robot can handle), and Adaptation Cost (the amount of new data or human intervention required to launch the robot in a new location). Benchmarking performance data. To prove the operational maturity of ACT-2, Sunday selected laundry folding as its inaugural Solve target. The task is notoriously difficult for artificial intelligence due to the non-rigid, unpredictable nature of fabrics. Testing was conducted purely on unseen homes, cureal-world residential environments featuring unexpected lighting, varying floor layouts, and cluttered background spaces. The empirical results from the validation trials are detailed below: | Evaluation Category | Demonstrated Performance Metrics | | Overall Success Rate | 99.1% +/- 0.3% | | Total Autonomous Attempts | 785 trials | | Successful Task Completions | 778 folds | | Median Execution Time | 2 minutes and 13 seconds | | Average Fold Quality Score | 4.72 / 5.00 stars | The validation data shows that 98.3% of the completed folds achieved a 4 or 5-star rating under Sunday's strict internal quality rubric. Furthermore, the Memo robot successfully maintained this peak performance across a wide array of garment types, demonstrating advanced spatial reasoning by automatically recovering when clothing fell to the floor or when fabrics were heavily wrinkled and partially occluded. The future of consumer robotics. The launch of the ACT-2 Preview indicates that home robotics is moving closer to becoming a viable commercial consumer product. In traditional household settings, no two rooms, layouts, or items are identical, creating an infinite string of unpredictable edge cases known as the problem. By demonstrating that a robotic platform can enter an unmapped home and reliably handle complex, non-rigid object manipulation with almost zero failure, Sunday Robotics is proving that foundation models can successfully close the generalization gap. ACT-2 establishes a baseline where autonomous home assistants can finally function as dependable, practical tools for daily human life. Lindy McKenzie Lindy McKenzie brings over four years of experience analyzing the intersection of AI, blockchain, and global technology. She specializes in breaking down complex Crypto, AI frameworks into clear insights. Lindy helps readers navigate the legal complexities of emerging tech and data privacy with confidence.

Creative Boom
Mar 26th, 2026
Sunday's 'playful Precision': a robotics brand designed to give you your time back.

Sunday's 'playful Precision': a robotics brand designed to give you your time back. Most technology competes for your attention. Sunday is building the complete opposite, a new kind of robotics company focused on returning time to people's lives. Its identity, created in collaboration with Moniker, strikes a careful balance between warmth and credibility. 26 March 2026 There is no shortage of bold claims in the world of AI and robotics. Every new product promises to change everything, usually while asking for more of your time in return. Sunday takes a different stance. Its ambition is disarmingly simple: free people from repetitive domestic tasks so they can focus on what actually matters. Its founders, Tony Zhao and Cheng Chi, have helped reshape how robotics systems learn, and their company has spent more than a year quietly building in the background. Backed by investors, it is now stepping into the spotlight with Memo, a fully autonomous home robot designed for real life. Sunday's technology centres around its Skill Capture Glove, a proprietary system that allows robots to learn tasks directly from humans. Instead of traditional programming, actions can be demonstrated and absorbed into an expanding skill library, powered by advanced AI models. The result is a level of dexterity and adaptability that makes Creative Boom Limited closer to the future than Creative Boom Limited think. Translating that into something people can immediately understand and trust is another challenge entirely. That is where the brand comes in. From research lab to real life. Working alongside San Francisco studio Moniker, Sunday developed an identity that introduces Memo not as intimidating technology, set to take over the world, but as something genuinely helpful. The team recognised early on that the product has an inherent duality: it is highly sophisticated yet outwardly calm and approachable. They defined this tension as "Playful Precision", a phrase that underpins the entire system. It allows the brand to hold two ideas at once: friendliness and engineering rigour, softness and control. This thinking carries through to the positioning line, "Life, made lighter". It is refreshingly simple and free of jargon. There is no mention of AI or robotics, just a clear articulation of the outcome, i.e. time returned. Soft on the surface, sharp underneath. Visually, the identity leans into Memo's physical qualities. Rounded corners and soft forms echo the product's design, while a gentle, restrained use of motion reflects its responsive outer shell. The palette feels considered and calm, reinforcing the sense that this is a product designed to fit quietly into everyday life. At the same time, the system never shies away from its underlying technology. A secondary layer introduces more technical expression, from dynamic data visualisations to detailed specifications and a darker mode that shifts the tone from aspirational to engineered. It is a careful approach that speaks to future customers while also reassuring investors and the wider robotics community. Typography helps meet these different demands. Basel Grotesk provides a clean, contemporary foundation with a neutral, confident voice, while Styrene brings a more industrial edge, particularly in moments where technical detail is important. Together, they create a flexible system that can move easily between warmth and clarity. The digital experience continues to reassure. Cinematic footage shows Memo operating autonomously in real homes, making the product a reality. This is paired with behind-the-scenes glimpses of the lab, offering insight into the engineering to build credibility without overwhelming the viewer. Interactions and transitions are deliberately paced, mirroring the product's own sense of control and precision. Nothing feels rushed or overly embellished. Even the smallest details, from micro-interactions to motion cues, reinforce the idea that this is technology designed with care. One of the more thoughtful aspects of the project is how the content was developed. Video, photography and 3D were created alongside the brand rather than added later, meaning everything shares the same strategic foundation. The result is a cohesive world where every touchpoint feels aligned. A launch that cut through. The launch response suggests the approach has landed. The waitlist filled within hours, with coverage from Wired, Bloomberg and TechCrunch following soon after. Social channels lit up, and more than 10,000 job applications came in from talent across companies, including Tesla, Google and OpenAI. Within three months, Sunday had raised its Series B, led by Coatue, at a valuation exceeding $1.15 billion. What makes the work particularly compelling is its restraint. Its category is known for leaning into complexity or spectacle, but Sunday's brand chooses clarity instead. It focuses on what people actually care about and goes from there. The work by Moniker gives Sunday a disciplined framework, shaping everything from strategy and identity to motion and storytelling. The result is that it offers a glimpse of a different kind of future for technology... Not anything Creative Boom Limited ever expected or were even ready for, yet it's already here.

SiliconANGLE Media
Mar 12th, 2026
Sunday raises $165M at $1.15B valuation to launch Memo household robot

Sunday raises $165M at $1.15B valuation to launch Memo household robot. Helpful home robots startup Sunday Inc. announced today that it has raised $165 million in new funding on a $1.15 billion valuation to scale up research and begin real-world deployment of its Memo home robot. Founded in 2023, Sunday is developing autonomous robots that are designed to perform routine household tasks by combining artificial intelligence with physical manipulation systems. The company's approach focuses on allowing robots to operate in real home environments where objects, layouts and tasks vary widely. Sunday does so by collecting large volumes of real-world task data and using that data to train models capable of executing everyday activities such as handling dishes, clearing surfaces and organizing items. The system Sunday is building works through a combination of robotic hardware, perception systems and machine learning models trained on motion data captured from humans. A core component called the Skill Capture Glove records the movements of a person performing a task. Then the recordings are converted into structured datasets that train robotic models responsible for grasping objects, recognizing environments and executing sequences of actions. The company's first product, the Memo home robot, is designed to carry out common household workflows... The robot can identify objects in a kitchen or dining area, pick them up using articulated manipulators, and place them into appliances such as dishwashers or storage locations. Under the hood, the software coordinates perception, object recognition and motion planning so that the system can complete multistep tasks involving fragile items, variable object placement and cluttered surfaces. Data generated during operation can also be used to refine models and expand the set of tasks the robot can perform. Differing from other robotics startups that tend to focus on industrial or workplace applications, Sunday is aiming for residential deployment, where robots must function in unstructured environments rather than controlled industrial settings. Tasks targeted by the system include food preparation cleanup, dish handling and general home organization. Early deployments are expected to occur through pilot installations in households where the robots operate continuously while collecting additional operational data that informs further model training and system updates. The Series B funding round was led by Coatue Management. Bain Capital Ventures, Fidelity Management & Research Co., Tiger Global Management, Benchmark Capital Management Co., Conviction Capital and Xtal Ventures also participated. "We raised our Series B to stop giving demos. Now, we're focusing entirely on deployment, with beta deliveries starting in just months," said Sunday Chief Executive Tony Zhao. "Data has always been the biggest bottleneck in robotics. We built the only pipeline that turns the complexity of real-world homes into autonomous intelligence at scale." The new funding takes the total amount raised by Sunday to $200 million. The company previously raised $35 million from Benchmark and Conviction in November. Photo: Sunday. A message from John Furrier, co-founder of SiliconANGLE: Support its mission to keep content open and free by engaging with theCUBE community. Join theCUBE's Alumni Trust Network, where technology leaders connect, share intelligence and create opportunities. * 15M+ viewers of theCUBE videos, powering conversations across AI, cloud, cybersecurity and more * 11.4k+ theCUBE alumni - Connect with more than 11,400 tech and business leaders shaping the future through a unique trusted-based network. About SiliconANGLE Media SiliconANGLE Media is a recognized leader in digital media innovation, uniting breakthrough technology, strategic insights and real-time audience engagement. As the parent company of SiliconANGLE, theCUBE Network, theCUBE Research, CUBE365, theCUBE AI and theCUBE SuperStudios - with flagship locations in Silicon Valley and the New York Stock Exchange - SiliconANGLE Media operates at the intersection of media, technology and AI. Founded by tech visionaries John Furrier and Dave Vellante, SiliconANGLE Media has built a dynamic ecosystem of industry-leading digital media brands that reach 15+ million elite tech professionals. Its new proprietary theCUBE AI Video Cloud is breaking ground in audience interaction, leveraging theCUBEai.com neural network to help technology companies make data-driven decisions and stay at the forefront of industry conversations.

Sunday
Mar 12th, 2026
Sunday's Series B: No More Demos | Sunday Robotics | The helpful robotics company

Say hello to Memo. Built for busy households, Memo works 24/7 to make your life lighter. Hand off your endless to-do’s, so you can focus on what really matters.

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