skipyoutube
Library

Search or browse

Y CombinatorThe $9B startup that wants to create a billion new developers

The $9 Billion Bet on a Billion New Developers

Replit CEO Amjad Masad on why the future of software belongs to domain experts, not just coders.

The Vision: Software Creation for Everyone

Amjad Masad started coding young, but he never loved the tools. By the time he graduated college, setting up a web app had become a nightmare of configuration and accidental complexity. That frustration drove him to build Replit, a platform that would eventually abstract away not just the development environment and deployment, but the code itself. In September 2024, Replit became the first major "vibe coding" product, letting users build apps entirely through natural language, drag-and-drop, and AI agents. Masad’s ambition is simple: anyone who can read and write should be able to turn an idea into a deployed, scalable app without worrying about any technical aspect.

The company’s mission has evolved from making programming accessible to creating a billion new developers. But as Masad discovered, many traditional developers actually enjoy the pain of configuration. The real breakthrough came when Replit started attracting tech-adjacent users: product managers who had coded years ago, designers blocked by engineering bottlenecks, and entrepreneurs with ideas but no technical skills. These were people with passion and domain expertise who were hamstrung by the need to become technical. In 2023, Replit made an explicit choice to stop marketing to developers and instead build for creators—a new generation of AI-native developers who don't need to understand every component in the system.

What People Actually Build

The range of applications built on Replit is startling. A physical therapist and her husband built a sophisticated health-tech app that scans body range of motion and tracks progress on a 3D model—after spending hundreds of thousands of dollars on offshore developers who couldn't deliver. A founder whose family runs a pool business is building SaaS for pool maintenance, replacing MS-DOS software still in use today. A mother in Korea created software to manage a rare condition for her child. These are not toy apps; they are real, secure, scalable products.

In enterprises, Replit serves two main use cases. First, product development: companies like Whoop report that the number of ideas they can try has grown by an order of magnitude. Second, internal tools: revenue operations teams build quote configurators and automations that save millions on SaaS subscriptions. The common thread is that domain experts—the people closest to the problem—can now build the software they need without waiting for engineering resources.

The Product Evolution: From IDE to Agent Platform

Masad observed that AI capabilities undergo massive step changes roughly twice a year. Replit aligned its roadmap accordingly, releasing a new agent version every six months. Agent 3 was the most autonomous agent on the market, capable of running for hours while the user stepped away. Agent 4, announced in late 2025, introduced parallel agents: users can now kick off multiple tasks simultaneously, design on a canvas while the agent builds, and deploy to web, iOS, and Android from the same project. The orchestrator handles merge conflicts and subdivides tasks, enabling real-time teamwork with multiple cursors.

This architecture also solves the problem of agent slowness. Instead of watching a single agent work, users can design the next feature while the agent builds the current one. The result is a state of flow. Masad believes the next step—perhaps Agent 5—will allow users to give high-level commands like "build me a SaaS company and try to market it." The platform is moving toward a post-prompting world where agents understand goals, not just instructions.

What Skills Matter in a Post-Prompting World

As agents become more capable, the bottleneck shifts from technical skill to mindset. Masad argues that understanding what is possible is the new literacy. People need to play with these tools constantly, stay plugged into what's coming down the line, and adopt a mindset of persistence: if the agent can't build something today, try again in a month. Idea generation remains crucial. With AI enabling rapid prototyping, entrepreneurs can cycle through products quickly, generating millions from ideas that are right for the moment but may not last.

The most successful Replit users, Masad notes, are entrepreneurial and resourceful—the kind of people who would start their own company but choose to be influential inside an organization. They are not blocked by obstacles; they figure out which AI tools to integrate and how to learn what they need. This founder mindset, he says, is the single most important trait for the new generation of builders.

Enterprise Adoption and the New Sales Motion

Replit's go-to-market is a product-led growth play, but with a twist. Users often discover the platform on weekends, building personal apps, and then bring it to work. The moment someone realizes they can solve a problem with code, their perspective shifts—they start seeing opportunities everywhere. Inside enterprises, Replit's sales team acts as evangelists and educators, running hackathons to create champions. The typical champion is not a traditional developer but a product manager, designer, or operations manager who is empowered to bring software into the company.

Masad draws a parallel to the shift that happened with developer tools two decades ago, when engineers gained the power to choose tools like Stripe and PagerDuty. That same empowerment is now happening outside of engineering. The sales motion is assisted: Replit helps champions build a business case, teaches leadership about AI, and often wins on trust, security, and compliance—the basics that enterprises still demand.

The Future Company: Everyone Is a Founder

Masad envisions a company where almost everyone acts as a founder. They wake up thinking about how to make the business more successful, find problems, and deputize agents to solve them. At Replit, a "vibe coding resident" team does exactly this: they roam the company, talk to support and HR, and build custom tools—a priority queue for support tickets, an internal HR portal—that improve scores and efficiency. These are not engineers; they are business generalists with a builder mindset.

The defensible jobs of the future, Masad believes, will be sales and building. Sales becomes evangelism and education—helping other companies transform using the technology. Building becomes increasingly high-level, as agents handle the implementation. Eventually, some companies may run fully autonomously, but most will need humans who understand customers, the economy, and where the world is headed. The abstraction layers keep rising: from humans computing tables to operators using computers, to agents using computers, to humans directing agents. Replit's bet is that the next billion developers will be those who can harness that abstraction to create, not just consume.

Examples from the library

Try one of these

Example queries appear here for new visitors. Returning readers can see recent queries.