Sunday
[PRIVATE]Humanoids · HQ: Mountain View, CA · Est. 2023 · 1 model registered
As of Sep 2026, DEPLOY verifies Sunday: 1 model, $200.0M raised. 1 source back the record.
Ownership
PRIVATE
Capital / Funding
$200M
Headquarters
Mountain View, CA
IP / Patents
Undisclosed
Platform Models
1
Audited Incidents
0
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.
Meaningful press and media coverage across the period. Well-capitalized with $200M raised and recent funding activity.
- HUMANOID
Key Facts
Safety & Regulatory Posture
No incidents on record for Sunday.
Leadership & Founders
Partnerships & Commercial Deployments
Platform Models
Sectors & Applications
FAQ
What is Sunday?
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.
What does Sunday make?
Sunday has 1 robot model on the DEPLOY registry: Memo (Sunday builds physical robots).
Is Sunday publicly traded?
No. Sunday is privately held and not publicly traded, per the DEPLOY registry.
Who competes with Sunday?
On the DEPLOY registry, peer companies to Sunday building in the same form factors include Unitree Robotics, DLR Institute of Robotics and Mechatronics, Dobot, AgiBot.
Who is the CEO of Sunday?
Tony Zhao is the ceo of Sunday, per the DEPLOY registry.
How can I invest in Sunday?
Sunday is a private company; its shares are not available on public markets, so retail investors cannot buy the stock today. It has raised $200M in disclosed funding.
Where is Sunday headquartered?
Sunday is headquartered in Mountain View, CA, USA.
How much funding has Sunday raised?
Sunday has raised approximately $200M in disclosed funding on record in the DEPLOY registry.
Who owns Sunday?
Sunday is privately held and venture-backed ($200M raised); ownership sits with its founders and private investors.
Where does Sunday operate robots?
Sunday is a robot manufacturer and does not directly operate deployments on the DEPLOY registry. Its products are deployed by customer operators; see the company page for the verified deployment record.
Is Sunday a top robotics company?
On DEPLOY's intelligence score, which blends verified deployments, funding, hiring, media, safety, and IP signals, Sunday ranks in roughly the top 2% of companies tracked by the registry.
When was Sunday founded?
Sunday was founded in 2023.
Is Sunday safe?
Sunday has no incidents on record in the DEPLOY registry. This does not constitute a safety guarantee; it reflects the incidents DEPLOY has tracked and verified to date.