How A Prototype Built During A Missed Flight Became A New Gusto Product

Name: How A Prototype Built During A Missed Flight Became A New Gusto Product
Uploaded: 2026-07-08T14:00:19.000Z
Duration: 32 min 27 s
Channel: Y Combinator

Y CombinatorJuly 8, 202632m

Topics23

Introduction to Eddie Kim and Gusto0:05 What is Gusto Co-founder0:31 Challenges Designing AI Products for Small Businesses1:30 Gusto Co-founder's Approach to Agentic AI2:31 Origin of the Idea4:00 Lessons from Building with OpenClaw6:00 Building the Prototype During a Missed Flight7:30 Refining the Prototype with the Team8:30 What the First Prototype Did9:01 Evolution from Web App Builder to Workflow Automation10:30 Technical Design Inspired by OpenClaw12:01 Customer Messaging and Value Proposition14:00 Advantages When Selling to Small Businesses16:00 Expected Impact and Future Vision17:00 Market Intelligence and Proactive Capabilities19:00 Early Launch Results and Customer Feedback20:00 Surprising Customer Usage Patterns21:00 Roadmap and Future Channels21:31 Expanding Access to Gusto Co-founder22:42 Building the Product with AI23:31 Development Process and What Was Eliminated26:00 Discipline in an Era of Abundant Code Generation28:30 AI's Impact on Small Business Formation30:30

In a Nutshell

Eddie Kim built a prototype of Gusto Co-founder during a five-hour airport layover using Claude Code, turning the experience of running a personal AI agent via Telegram into a product that automates small business workflows. The system uses a heartbeat cron model with LLM prompts to handle recurring tasks like payroll and time-off approvals, plus external automations such as weather-triggered customer emails, all accessible via SMS without logging into Gusto. A five-person team of AI builders shipped the product in ten weeks by eliminating traditional processes like specs, Figma, and meetings, relying instead on continuous Zoom collaboration and rapid code iteration.

AI-Generated Notes

These notes were generated by AI and may contain inaccuracies.

Eddie Kim is Gusto's co-founder and head of technology. Gusto participated in YC's winter 2012 batch, recently crossed a billion dollars in annual revenue, and serves over 500,000 small businesses in the US. One in five new businesses started today are Gusto customers.

Gusto Co-founder is a new product that uses AI to automate running a small business. It is designed for small businesses and automates most of the business processes that a small business has. Many of the processes are already handled on Gusto, but Gusto Co-founder can take those things and automate them fully. Examples include running payroll from start to finish, approving time off, reminding employees to submit time sheets, and handling tasks outside of Gusto such as texting a business owner if it is going to rain and then emailing customers to bring umbrellas for a tour guide business.

Small businesses are generally less technically sophisticated than typical YC or technology company customers. Most small businesses still use AI as a glorified search engine: they ask a question and receive a reply. More advanced users may have AI perform research, generate reports, summarize writing, or author content, but the interaction remains largely prompt-and-response. The promised agentic capabilities have not materialized for the vast majority of users. Only a small percentage of technically sophisticated people are creatively building automations across their lives, while 99.9% continue using AI as a search tool.

Gusto Co-founder was created to deliver the agentic promises of AI to small business owners. Instead of starting with an open-ended experience that presents a blank canvas problem, the product begins with the processes Gusto already solves for customers in payroll, HR, time, and scheduling. It suggests ways to fully automate recurring tasks such as running payroll and approving time sheets so users do not need to log into Gusto to complete the process.

The original idea came from Eddie setting up his own OpenClaw. He spent eight hours installing it on a Mac Mini, air-gapped the setup for security, and created a secure environment that only an engineer could realistically build. After setup, he found himself primarily using it as a glorified search engine. One notable feature was the ability to interact via Telegram, which provided a significantly better experience than opening a browser and logging into Claude or ChatGPT.

People underestimate chat as an interface. The natural inclination when building AI tools is to add more functionality or improve the client UI, but the better approach is to make the agent smarter so users can accomplish tasks from Telegram or similar channels without needing a fancy UI. Another key learning is the gap between reading about tools like OpenClaw and actually setting them up. Technical leaders should code and get hands-on experience rather than only consuming information about new technologies.

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How A Prototype Built During A Missed Flight Became A New Gusto Product

Introduction to Eddie Kim and Gusto00:05

What is Gusto Co-founder00:31

Challenges Designing AI Products for Small Businesses01:30

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