# Sunday: company

Canonical ID: `5a89f9c4-efba-4fca-b0ed-934d9986c26c`

## Key facts

- **Funding:** $165M Series B (Mar 2026, Coatue-led, $1.15B valuation)
- **CEO:** Tony Zhao
- **Co-founder:** Cheng Chi
- **Total funding:** 00M (5M seed + 65M Series B)
- **Valuation:** .15B (Series B, March 2026)
- **Key investors:** Benchmark, Conviction
- **ACT-1:** frontier foundation model trained on zero robot data
- **Beta:** 50 households, late 2026

- **Slug:** sunday
- **Founded:** 2023
- **HQ:** Mountain View, CA, USA
- **Funding total (USD):** 200000000

## Models

- [Memo](/models/memo.md) (humanoid) (id: `93dc65be-9dbd-4a2f-ab4a-80b410e43f35`)

## Current leadership (2)

- [Tony Zhao](/people/tony-zhao.md) Co-Founder & CEO (_reported, not verified_)
- [Cheng Chi](/people/cheng-chi.md) Co-Founder (_reported, not verified_)

## Founders (2)

- [Tony Zhao](/people/tony-zhao.md) (cofounder)
- [Cheng Chi](/people/cheng-chi.md) (cofounder)

## Supplies to

_No verified supply relationships on file. Supply-chain coverage is being added across the registry; check back as the seed populates this company's outbound edges._

_Outbound supply edges. Each appears when verified with at least two strong sources. Sources are append-only; corrections add new sources rather than rewrite history._

## Sources (1)

1. https://www.globenewswire.com/news-release/2026/3/12/3254877/0/en/sunday-raises-165m-to-launch-first-autonomous-robots-by-thanksgiving.html

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