Breaking
YC S24 | B2B Productivity

Zuni
Remote AI

The copilot that moves in - rent free.

Most AI tools demand you go to them. Zuni goes to you. It lives in your Chrome sidebar, reads your open tabs, works your inbox, and brings the world's best AI models to wherever you already are.

10+ AI Models
S24 YC Batch
2 Founders
2x Faster than GPT
Will Taylor, Co-Founder of Zuni
Will Taylor - Co-Founder, Zuni
The Big Idea

The app you already use
is the best app

Everyone building AI in 2024 had the same pitch: "come live in our app." Zuni had a different one. "Stay where you are. We'll come to you."

It sounds obvious in hindsight. People spend their day in Gmail, in Google Docs, in browser tabs stacked ten deep. The productivity bottleneck is not that they lack an AI model. It is that every AI tool is an island, and getting there requires a swim. Zuni built a bridge instead.

The product is a Chrome sidebar extension. It reads whichever tab you have open. You ask a question about the article you are reading, the contract you are reviewing, the email thread you are dreading - and Zuni answers in context, without requiring copy-paste or a context switch. Then the Gmail Agent ships, and the use case sharpens: Zuni starts reading your inbox proactively, surfacing summaries, action items, and draft replies before you even ask.

"People don't actually want to leave their existing tools - they just want them to work better."

- Zuni's founding thesis, YC Launch post

That is a thesis with teeth. The average knowledge worker opens email 74 times per day. Switching to a standalone AI client for each of those touchpoints is not a workflow improvement. It is a new chore. Zuni eliminates the chore.

The Product

One sidebar. Every model. Zero context-switching.

Zuni is not another chat interface. It is a context-aware intelligence layer that wraps around whatever you are already doing in Chrome.

🔍

Tab-Aware AI Chat

Ask Zuni anything about the page you have open. Summarize an article, dissect a PDF, get the key takeaways from a research paper - no copy-paste required.

📧

Gmail Agent

Zuni reads your inbox. It surfaces what matters, flags action items, drafts replies in your voice, and processes emails without you having to ask twice.

⚡

Multi-Model Access

GPT-4o, Claude 3.7 Sonnet, Gemini 2.0 Flash, DeepSeek R1, Grok 2, LLaMA 3.3 - all in one place. Pick the model. Stay in the browser.

🔒

Privacy by Default

Chats are not stored on Zuni's servers. Everything is fully encrypted in transit. Your conversations belong to you.

Supported Models
GPT-4o GPT-4o-mini o3-mini Claude 3.7 Sonnet Gemini 2.0 Flash DeepSeek R1 Mixtral 8x7b Grok 2 LLaMA 3.3 70B Perplexity
The Journey

From idea to inbox
in under a year

Zuni - Product Timeline
Early 2024
Old House Labs founded. George Seabridge and Will Taylor leave their respective roles and start building. First concept: a full standalone AI email client.
March 21, 2024
v1.0.0 launches. Zuni Chrome extension goes live. A sidebar AI that answers questions in any browser session.
March 23, 2024
v1.3.0: Tab awareness ships. Zuni can now read the content of the current page. Context switches become optional.
April 17, 2024
v2.0.0: Zuni Agent for Gmail. The pivot crystallizes. Proactive inbox intelligence. Summaries, action items, draft replies - without prompting.
Summer 2024
Y Combinator S24 batch. Zuni joins YC, raises ~$500K pre-seed. Aaron Epstein joins as YC partner.
March 2025
Product Hunt relaunch. Zuni hits #14 on launch day, 118 upvotes. Hacker News community discussion follows in April.
The Founders

Two Cambridge graduates
who did not build what they planned

The best companies rarely ship the thing they set out to build. Zuni was supposed to be a standalone AI email client. Then the founders looked at how people actually work - tabs, not apps; browser, not software - and changed their minds. That willingness to pivot toward reality rather than away from it is the closest thing to a founding virtue.

GS
George Seabridge
Co-Founder

Cambridge mathematician who spent years in investment banking at Citigroup and then investment principal roles in aerospace and defense ventures. He brings the business architecture: understanding markets, structuring deals, knowing what enterprise customers actually need.

Cambridge Mathematics Ex-Citigroup Venture Investment
WT
Will Taylor
Co-Founder

Cambridge computational linguist, 2x YC founder (W22 and S24), and the kind of engineer who ships. He previously co-founded Aklimate (YC W22), raised $1M+ at a $15M valuation, grew it to $100K ARR. He knows the playbook, which means he knows when to ignore it.

Cambridge CompLing 2x YC Founder Ex-Chatterbug

"The fact that Will has done this before - the whole YC arc, the fundraise, the build - means the second time has fewer surprises and more deliberate choices."

- The Zuni origin story
Pricing

Free until you're hooked.
Then twenty dollars.

A credit-based model that puts access to the best AI models in reach without locking you into one provider.

Hobby
$0
forever free
  • 10 credits per day
  • All AI models
  • Unlimited devices
  • Tab-aware chat
  • Gmail Agent
Pro
$20
per month - first month guaranteed
  • 1,500 credits per month
  • All AI models
  • Priority access
  • Unlimited devices
  • Full Gmail Agent mode
Milestones

The receipts

The Details

Things worth knowing

Find Zuni

Go explore

🌐 zuni.app - Official Site 🔧 Chrome Web Store 💼 LinkedIn ▶ YouTube 🚀 Y Combinator Profile 💬 Discord Community 🔶 Hacker News Discussion 📋 Product Changelog