The verified answer
As of Oct 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.
Raider Nation bashes Taylor Swifts look by trolling Travis Kelce
During the Raiders and Chiefs’ Sunday thriller, Raider Nation was letting Travis Kelce know what they think of him and Taylor Swift. A Raiders fan was seen walking up the stairs…
Coyotes caught in violent brawl outside Southern California cabin
A Lake Arrowhead couple got an unusually close look at three coyotes brawling outside their just steps from the front door of their cabin in the San Bernardino Mountains. The…
Liverpool match looms but Man City will know what to expect at Anfield
City faces a hostile reception at Liverpool on Sunday.
Clippers’ Max Strus (torn plantar fascia) out for start of season
By Field Level Media Oct 06 (Field Level Media) - The injury-plagued Los Angeles Clippers sustained another blow on Sunday in their preseason opener. ...
Jonquel Jones can’t let Angel Reese continue to torment Liberty
Round 1 of this semifinal series went to Angel Reese and the Atlanta Dream on Sunday.
The George Kittle look-alike contest brought out the shaggiest 49ers fans
George Kittle certainly has a unique look to him. And apparently, some of his fans do too. Hours before the 49ers improved to 4-0 on the season, in a 24-14 victory at home on…
Alarming California map shows exactly where wildfires are tearing across the state — as sweltering heat wave hits
An oppressive heat wave is projected to peak from Sunday through next Thursday, bringing record-high temperatures to millions of residents.
Woman charged with murder after stabbing seven-year-old girl in Chicago
<p>Shavdon Gayden killed Eddimar Hernandez-Chacon in broad daylight while walking with her older sister</p><p>A woman has been charged with murder after allegedly stabbing a…
Project to Improve Roadway Drainage on US 101 in Summerland Set to Begin Overnight Sunday, October 4
SANTA BARBARA COUNTY – Travelers will encounter intermittent overnight traffic control as drainage improvement project on US 101 in Summerland The post Project to Improve Roadway…
How Rams staved off humiliation, saved Super Bowl hopes with epic comeback
The Rams' season was teetering on the brink of chaos until late Sunday.
Liberal haven festival-goers weigh government seizure of their homes: 'I'd be so game'
Takoma Park residents just outside of Washington D.C. were asked whether they'd support government seizure of their own homes and private property during a street festival…
Wild donkeys become unlikely attraction on University of California campus
Campus life is always an adjustment for new students, but a few four-legged walk-ons have made themselves right at home at one University of California campus. “We couldn’t let…
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
Heat Index
Category contender75/100
A composite of competitive footprint, funding, press velocity, active partnerships, and supply-chain edges. Different from the Intelligence score below (which is per-form-factor productization). Non-robotics companies cap at 25.
Reality vs attention
Sunday draws attention at the 95th percentile but verifies reality at the insufficient-data level among humanoids.
6-month trend
Analysis
Meaningful press and media coverage across the period. Well-capitalized with $200M raised and recent funding activity.
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: Oct 6, 2026