The verified answer
As of Aug 2026, DEPLOY verifies Sunday: 1 model, $200.0M raised. 1 source back the record.
CategoryHumanoids
Overview
Sunday is a Mountain View-based AI robotics startup building Memo, an autonomous wheeled humanoid home robot. Founded in 2023 by Stanford PhDs Tony Zhao and Cheng Chi, the company emerged from stealth in November 2025 with 5M in seed funding from Benchmark and Conviction, and subsequently raised a 65M Series B at a .15B valuation in March 2026.
Memo is designed to learn household tasks autonomously using Sunday's ACT-1 Foundation model, trained on zero robot data. A Founding Family Beta of 50 households is planned for late 2026.
Verified record
- Verified deployments
- None on file
- Active incidents
- None on file
Valuation of record
DEPLOY VERIFIEDPriced roundSeries B post-money
Key facts
CEO
Co-founder
Total fundingsee investors →
Key investors
ACT-1
Beta
Data & sources
Web sources
1
1 source backing this record.View all →
Models (1)
View all models →Sunday on the deployment map
View the global mapSunday has no verified deployments on the DEPLOY registry yet. Explore the deployment map by place and type.
No verified deployments for Sunday on the DEPLOY record yet. Track Sunday to know the moment the first one is verified.
Relationships
Current leadership (2)
Founders (2)
- Tony Zhaocofounder
later founded Sunday Robotics
- Cheng Chicofounder
later founded Sunday Robotics
Safety record
No incidents on record for Sunday.
Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.
Full safety record: incidents, sourcing, and exposure data →
Recent coverage
Sunday in third-party press
Peers
101 peers across 1 segment. Every Sunday competitor derived from shared form-factor and application-domain edges.
humanoid(101)
68 companies in this segment · competitive (HHI 574.5255335898561) · leader Figure AI at 1207%
- 1X Technologiesdirect competitor(inferred)strong
- Fauna Roboticsdirect competitor(inferred)strong
- UBTech Roboticsdirect competitor(inferred)strong
- Zeroth Roboticsdirect competitor(inferred)strong
- 1X Technologiesdirect competitor(inferred)moderate
- AI2 Roboticsdirect competitor(inferred)moderate
Financial state
- Total funding
- $200.0M
- Reporting basis
- private_reported
- Lifecycle stage
- early
- Counterparty risk class
- moderate
Each numeric field carries its own basis marker. Aggregators report a number; this surface preserves the source class so verification depth travels with the value.
Funding rounds (2)
Sunday’s 2 disclosed rounds, $200M in total, oldest to newest.
- Series B2026-03-12
$165M(reported) · $1.1B post
Investors: Tiger Global Management, Coatue Management (lead), Bain Capital Ventures, Benchmark, Conviction
- Seed2025-11-19
$35M(reported) · $140M post
Investors: Benchmark, Conviction
Timeline
Every recorded move in Sunday’s history, most recent first: funding rounds, partnerships, acquisitions, supply-chain starts, key hires, and press.
Funding roundSeries B funding round
2026-03-12Series B raising $165000000
Funding roundSeed funding round
2025-11-19Seed raising $35000000
Recent activity
Every change to this record is dated, sourced, and independently verified where marked.
- Record createdJul 8, 2026
Added to the verified registry
Sources (1)
Common questions
What is Sunday?
What does Sunday make?
Is Sunday publicly traded?
Who competes with Sunday?
Who is the CEO of Sunday?
How can I invest in Sunday?
Where is Sunday headquartered?
How much funding has Sunday raised?
Who owns Sunday?
Where does Sunday operate robots?
Is Sunday a top robotics company?
When was Sunday founded?
Is Sunday safe?
Methodology: Verified · 1 source (no primary) · last reviewed 2026-08-21
Verification posture
Verified
Low confidence
Review state
Stable
Last reviewed 2026-08-21
Sources by quality tier
- 1
- unclassified
- Unclassified source
The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.
Methodology surface for Sunday.Peer companies
- Unitree Robotics10 models
- DLR Institute of Robotics and Mechatronics6 models
- Dobot6 models
- AgiBot5 models
- AheadForm5 models
- Boston Dynamics5 models
In the press
Recent coverage mentioning Sunday from third-party publications. Automatically surfaced; not part of the verified registry record.
Google stops demoting EU publishers under its spam policy from Sunday
From Sunday, a European news publisher that runs sponsored content on its site will no longer be at risk of a manual demotion in Google Search. Google confirmed the change on…
Poetry Connection | Connecting with South Asian Poets
Serena Chopra will do a reading and interview at Chaucer’s Books on Sunday, August 30. The post Poetry Connection | Connecting with South Asian Poets appeared first on The Santa…
9 Things to Know About NASA’s Nancy Grace Roman Space Telescope
NASA’s Nancy Grace Roman Space Telescope is set to launch at 7:26 a.m. EDT on Sunday, Aug. 30. While you wait to watch the launch, brush up on some key facts about this wide-view…
Is NBC’s Premier League coverage in the US too English? | Leander Schaerlaeckens
<p>One wonders when, if ever, a US broadcast can win the same plaudits presenting the English league with a more American voice</p><p>There they were again, signaling with their…
NFL Sunday Ticket to change hands again
EverPass, which holds exclusive rights to the NFL broadcast package, is being sold to DAZN, but not much should change for restaurants and bars.
From Tamagotchi to Plarail, Tokyo Toy Show kicks off
The Tokyo Toy Show will run through Sunday at the Tokyo Big Sight convention center.
Can the Philly Classic ignite another golden age of US road cycling?
<p>The race was at its peak when American riders were regularly challenging for titles. Its return could help prompt a revival</p><p>After a decade-long absence, the beloved…
Heatwave headed our way to start September
A prolonged period of hot temperatures reaching the 90-degree mark is forecast to begin Sunday, August 30.
Charlamagne knocks Jeffries over Kushner meeting: ‘Yo Hakeem, we don’t believe you’
Charlamagne Tha God slammed House Minority Leader Hakeem Jeffries (D-N.Y.) over his private meeting with Jared Kushner, President Trump’s son-in-law, accusing the Democratic…
Jed York was unfairly 'catfished' by prostitution sting, group says
SANTA CLARA, Calif. (KRON) -- San Francisco 49ers owner Jed York was "catfished" by undercover investigators for "consensual private behavior," according to a nonprofit group that…
Burning Man attendees asked to change plans as Hawk Fire burns
Burning Man is still on, but attendees are being encouraged to adjust their travel plans in light of the Hawk Fire burning near Reno. The festival is scheduled to start on Sunday,…
US man kills 8 relatives, including 4 children, at family dinner
A man killed eight of his relatives, including four children, as they gathered for Sunday dinner at a home outside Billings, Montana, weeks after his parents asked him to move…
Machine-readable surfaces
- Markdown mirror: /companies/sunday.md
- RSS feed: /companies/sunday/feed.xml
- JSON-LD: embedded in this page’s head
- REST API: /v1/companies/5a89f9c4-efba-4fca-b0ed-934d9986c26c
- Revision history: /companies/sunday/history
- Data documentation: /data
- Query this programmatically: Deploy MCP
Peer companies
- Unitree Robotics10 models
- DLR Institute of Robotics and Mechatronics6 models
- Dobot6 models
- AgiBot5 models
- AheadForm5 models
- Boston Dynamics5 models
Video
I visited @SundayRobotics to see how they're building a household robot that actually works in real homes. Founded by Stanford roboticists Tony Zhao and Cheng
Memo is a personal robot, built for busy households. It works 24/7 to make your life lighter, so you can focus on what really matters. Our beta launches late 20
Introducing ACT-1, a frontier robot foundation model trained with zero robot data Website: https://www.sunday.ai/ X: https://x.com/SundayRobotics
The story behind the Sunday team Website: https://www.sunday.ai/ X: https://x.com/SundayRobotics
We’re moving beyond demos to focus on real-world deployment of our robot, Memo. Our public beta rolls out to users this Fall. See more at: Website: https://www
1,709 → 72,000 sq. ft. in two years To bring Memo into your home, we had to expand our own. Welcome to Memo's New Home. See more at: Website: https://www.sun
Quick breakdown of Sunday Robotics’ Memo — why its look reads as cute, harmless, and approachable. Short, factual explainer for casual viewers and new robot en
Tony Zhao is the co-founder and CEO of Sunday, the helpful robotics company building humanoid, Memo, that is powered by state-of-the-art AI models and an ever-e
Tyrin Johnson, 20, was shot and killed by National Guard soldiers during a police pursuit early Sunday. The incident is now under investigation by state authori
Reality vs attention
Sunday draws attention at the 92nd percentile but verifies reality at the insufficient-data level among humanoids.
6-month trend
Analysis
Well-capitalized with $200M raised and recent funding activity. Meaningful press and media coverage across the period.
Signal flags
Dimension breakdown
Verified signal
Attention (reach, not merit)
DEPLOY Intelligence scores are computed from verified registry data: confirmed deployments, disclosed funding rounds, regulatory filings, active job listings, video viewership, and press coverage. Confidence ratings reflect data availability. Scores update nightly.
DEPLOY Indices — verified vs claimed
Last computed: Aug 29, 2026