- Michele Catasta of Replit explains how Replit lets anyone turn an idea into an app or website using natural language, with no coding skills required.
- Replit chose Claude because the model's high "IQ" is what removes the barrier to entry for coding — likening the model to a car engine around which they build the whole car.
- Replit has grown to over 40 million registered users, with early access to new Anthropic models (like Sonnet 3.7) enabling rapid launches such as Replit Agent V2.
The Problem Solvers: Michele Catasta at Replit
- Replit's mission is to make coding so accessible that users don't feel they're writing code — they just turn an idea in their mind into an application or website.
- The team landed on Claude because they needed a high-IQ model in their agent; the power of the model is what makes the difference in removing the barrier to entry.
- Replit made the choice to use Claude back in early 2024 when Sonnet 3.5 came out, and Anthropic has kept the lead in coding models since then.
- Early research previews of new models feel "like receiving a shiny toy at Christmas," with the discovery of what they can do being the most exciting window of time.
- With early access to Sonnet 3.7 in early 2025, Replit built Agent V2 and launched it the same day Anthropic released the model, creating a major marketing pop.
- Replit has crossed 40 million registered users and gets attention because users experience something they've never seen before.
- The platform removes the complexity that makes software engineering hard, giving people who never felt "permission" to create software the ability to go from zero to one.
Replit — A platform that lets people build apps and websites from natural language without coding skills.
Replit Agent — Replit's AI agent that turns a user's described idea into a working application.
Barrier to entry — The difficulty or prerequisite skills that previously kept non-developers from building software.
Research preview — Early access to a new model before its public launch, used to experiment and build features.
Zero to one — Going from nothing to a first working version of a product or application.
High IQ — Shorthand for a model's strong reasoning and coding capability, which Replit treats as essential.
When I was 16, I was focusing on becoming a good open source developer. I love the fact that I'm still working on something I was passionate about as a teenager, and I think this is going to be my life mission.
Replit is the place where you go with an idea in mind, no coding skills whatsoever, expressing in natural language what you want to build, and then they see the magic for the first time. We made coding so accessible to everyone. They don't even feel that they're writing code anymore. They're just creating an idea they have in their mind and turning it into one application, turning it into a website.
So when you started building the Replit agent and you were experimenting with different models, why did you land on using Claude? We need a high IQ level in our agent. I love to use this analogy where models are like the car engine and we're building the entire car around it ourselves. In order for us to remove the barrier of entry of coding, the power of the model is what makes the difference. We made a choice back in early 2024, when Sonnet 3.5 came out, and since then, Anthropic kept the lead in having the best coding models on the market.
So one of my favorite parts of my job in applied AI is when we work with you on early research previews of our newest models. It feels like receiving a shiny toy at Christmas. The discovery process of finding out what it's capable to do is the most exciting window of time. Early 2025, you gave us access to Sonnet 3.7. We rushed to create Replit Agent V2, and the moment Anthropic launched the new model, we launched it the same day — our new agent — there was an incredible marketing pop.
And this is something that's used by relatively few people at the moment? It's kind of a hidden secret, or? I think we recently crossed 40 million registered users. We got a lot of attention because users experienced something that they've never seen before in our product.
So what makes Replit unique? We remove all the complexity that makes the job of a software engineer really hard. That barrier has been completely crushed by Replit. I'm approached by people that didn't even feel the permission to create software in their life. They always had an amazing business idea. Now, they're doing the zero to one complete in Replit. This is changing people's lives.
TL;DR
- Michele Catasta of Replit explains how Replit lets anyone turn an idea into an app or website using natural language, with no coding skills required.
- Replit chose Claude because the model's high "IQ" is what removes the barrier to entry for coding — likening the model to a car engine around which they build the whole car.
- Replit has grown to over 40 million registered users, with early access to new Anthropic models (like Sonnet 3.7) enabling rapid launches such as Replit Agent V2.
Takeaways
- Replit's mission is to make coding so accessible that users don't feel they're writing code — they just turn an idea in their mind into an application or website.
- The team landed on Claude because they needed a high-IQ model in their agent; the power of the model is what makes the difference in removing the barrier to entry.
- Replit made the choice to use Claude back in early 2024 when Sonnet 3.5 came out, and Anthropic has kept the lead in coding models since then.
- Early research previews of new models feel "like receiving a shiny toy at Christmas," with the discovery of what they can do being the most exciting window of time.
- With early access to Sonnet 3.7 in early 2025, Replit built Agent V2 and launched it the same day Anthropic released the model, creating a major marketing pop.
- Replit has crossed 40 million registered users and gets attention because users experience something they've never seen before.
- The platform removes the complexity that makes software engineering hard, giving people who never felt "permission" to create software the ability to go from zero to one.
Vocabulary
Replit — A platform that lets people build apps and websites from natural language without coding skills.
Replit Agent — Replit's AI agent that turns a user's described idea into a working application.
Barrier to entry — The difficulty or prerequisite skills that previously kept non-developers from building software.
Research preview — Early access to a new model before its public launch, used to experiment and build features.
Zero to one — Going from nothing to a first working version of a product or application.
High IQ — Shorthand for a model's strong reasoning and coding capability, which Replit treats as essential.
Transcript
When I was 16, I was focusing on becoming a good open source developer. I love the fact that I'm still working on something I was passionate about as a teenager, and I think this is going to be my life mission.
Replit is the place where you go with an idea in mind, no coding skills whatsoever, expressing in natural language what you want to build, and then they see the magic for the first time. We made coding so accessible to everyone. They don't even feel that they're writing code anymore. They're just creating an idea they have in their mind and turning it into one application, turning it into a website.
So when you started building the Replit agent and you were experimenting with different models, why did you land on using Claude? We need a high IQ level in our agent. I love to use this analogy where models are like the car engine and we're building the entire car around it ourselves. In order for us to remove the barrier of entry of coding, the power of the model is what makes the difference. We made a choice back in early 2024, when Sonnet 3.5 came out, and since then, Anthropic kept the lead in having the best coding models on the market.
So one of my favorite parts of my job in applied AI is when we work with you on early research previews of our newest models. It feels like receiving a shiny toy at Christmas. The discovery process of finding out what it's capable to do is the most exciting window of time. Early 2025, you gave us access to Sonnet 3.7. We rushed to create Replit Agent V2, and the moment Anthropic launched the new model, we launched it the same day — our new agent — there was an incredible marketing pop.
And this is something that's used by relatively few people at the moment? It's kind of a hidden secret, or? I think we recently crossed 40 million registered users. We got a lot of attention because users experienced something that they've never seen before in our product.
So what makes Replit unique? We remove all the complexity that makes the job of a software engineer really hard. That barrier has been completely crushed by Replit. I'm approached by people that didn't even feel the permission to create software in their life. They always had an amazing business idea. Now, they're doing the zero to one complete in Replit. This is changing people's lives.