Relay.app: The Ex-Google PM Running a Startup Like a One-Person Army

There is a specific breed of founder that fascinates me. The ones who were senior enough at Big Tech to never need to work again, but left anyway because they saw something the rest of us are still catching up to.

Jacob Bank is one of those people. He was a Director of Product Management at Google, running the teams behind Gmail and Google Calendar. Products used by billions of people. Then he left to build Relay.app, an AI agent platform. And the way he runs his company is a case study in what AI-first operations actually look like.

From Stanford AI Lab to Google to Founder

Bank's resume reads like someone who was preparing for this moment for a decade. He studied Computer Science at Cornell, then entered Stanford's PhD program in the AI Lab. He dropped out to co-found Timeful, an AI-powered calendar app that used behavioral psychology to help people manage their time better.

Google acquired Timeful in 2015. Bank stayed at Google and eventually became a Director of PM, leading products that billions of people use daily. Gmail. Google Calendar. Multiple Workspace products.

Then he left to build something from scratch. Again.

What Relay.app Actually Does

Relay.app lets you build AI agents that work across your existing tools. Not chatbots that wait for you to ask questions. Agents that proactively handle tasks in the background.

The platform connects to Gmail, Slack, Google Docs, Notion, and dozens of other apps. You build workflows using an intuitive flowchart interface, and AI handles the execution. But here is the key differentiator: human-in-the-loop steps.

Before the AI takes action, it shows you exactly what it plans to do. You can review, adjust, or approve. This solves the trust problem that kills most AI automation tools. People do not want AI firing off emails or updating databases without oversight. Relay gives you the speed of AI with the safety net of human judgment.

Bank describes the product's North Star as becoming "a tool with the ubiquity and value of the spreadsheet for the AI era." That is an ambitious target. But given what he shipped at Google, it is not an unreasonable one.

Running a Company Like a One-Person Army

This is where the story gets interesting for anyone building a zero-employee company. Bank manages marketing, sales, support, finance, and HR, while also being the primary product leader. He does this with a nine-person fully remote team spread across Europe and North America.

How? He eats his own cooking. He uses Relay.app's AI agents to automate the work that would normally require multiple dedicated hires.

The LinkedIn Problem He Solved

Bank's LinkedIn posts regularly generate 100 to 1,000 comments per week. Before AI, managing those comments consumed roughly 20 hours weekly. That is essentially a part-time employee's worth of work just responding to social media engagement.

Now, AI handles 90% of it. Bank focuses on the 10% that requires his personal judgment. He built this workflow on Relay.app itself, which doubles as both a time-saver and a product demo.

His AI Model Stack

Bank uses different AI models for different tasks, which is a pattern more founders should adopt:

• Gemini 2.0 Flash for document extraction and summarization (chosen for cost-effectiveness and large context windows)
• Claude Sonnet for writing and analytical tasks
• GPT-4.1 with search for research-focused work

This "best tool for the job" approach is smarter than going all-in on one AI provider. Different models have different strengths, and the cost differences can be significant at scale.

The AI Agent vs. Automation Debate

Bank draws a clear line between AI agents and traditional automation. A traditional automation tool like Zapier moves data between apps based on rules you set. An AI agent understands context, makes decisions, and adapts.

When Relay.app shifted its messaging from "automation tool" to "AI agent platform," website conversion increased by 25%. That is not just branding. It reflects a genuine product difference that customers can feel.

The distinction matters for anyone thinking about AI agents vs. AI employees. Agents are not just faster versions of existing tools. They represent a fundamentally different way of working, where AI handles the thinking, not just the doing.

$8.2M from Khosla and a16z

Relay.app raised $8.2M in seed funding from Khosla Ventures, Andreessen Horowitz, Neo, BoxGroup, SV Angel, and a group of angel investors. That is a serious lineup of backers for a seed round.

The funding reflects something important about the AI agent space: investors believe this is a platform-level opportunity, not a feature. The companies building the infrastructure for AI agents, the "pick and shovel" plays, are attracting the biggest checks.

With a nine-person team and that level of funding, Relay.app is lean by design. Bank is not trying to hire his way to growth. He is trying to prove that a small team using AI agents can compete with companies ten times their size.

The Content Machine

One of Bank's most underrated moves is his content strategy. He does not just talk about AI agents. He teaches people how to use them. Tutorials. YouTube walkthroughs. User office hours. LinkedIn posts that break down specific workflows.

He also converts customer call transcripts into content and messaging strategy. Every conversation with a user becomes fuel for better marketing copy, better product positioning, and better understanding of what customers actually need.

This is the same pattern we see with founders like Ben Cera at Polsia. When you are genuinely building something people want, content marketing becomes natural. You are just sharing what you are already doing.

What Makes This Story Different

There are a lot of AI automation tools right now. The market is crowded and noisy. What makes Relay.app worth watching is the combination of three things:

The founder's pedigree. Bank ran products used by billions of people at Google. He has seen what good software looks like at the highest scale. That experience shows up in Relay's product quality and design decisions.

The human-in-the-loop approach. Most AI tools either give you full automation (scary) or require manual intervention at every step (defeating the purpose). Relay's middle ground, where AI proposes and humans approve, is the right balance for most business workflows.

Dogfooding at the extreme. Bank does not just sell AI agents. He runs his entire company on them. When the founder is his own most demanding customer, the product gets better fast.

For anyone thinking about how to set up AI agents for their own business, Relay.app is worth a serious look. Not because it is the only option, but because the founder's approach to building and running the company is a blueprint for zero-human operations.

Where to Follow This Story

• Relay.app
• Jacob Bank on LinkedIn (his posts are genuinely worth reading)
• Jacob Bank on X
• Open Source CEO interview for the full founder story

Frequently Asked Questions

What is Relay.app?

Relay.app is an AI agent platform that lets you build automated workflows across all your tools. It connects to Gmail, Slack, Google Docs, Notion, and dozens of other apps, with AI handling the work and humans reviewing when needed. The company has raised $8.2M from Khosla Ventures and Andreessen Horowitz.

Who is Jacob Bank?

Jacob Bank is the founder and CEO of Relay.app. He was previously a Director of Product Management at Google, where he led the teams for Gmail and Google Calendar. Before that, he co-founded Timeful, an AI calendar app that Google acquired in 2015. He studied Computer Science at Cornell and was in Stanford's AI PhD program.

How does Relay.app differ from Zapier or Make?

Relay.app positions itself as an AI agent platform rather than a traditional automation tool. The key difference is human-in-the-loop steps. AI handles the repetitive work, but the platform shows you a clear plan of what it will do and lets you approve or adjust before execution. This makes it more suitable for tasks requiring judgment.

How big is the Relay.app team?

Relay.app operates with a team of nine, distributed fully remote across Europe and North America. Many team members are former Google colleagues of Jacob Bank. Despite the small team size, the company competes with much larger automation platforms by using its own AI agents internally.