Odd Lots · Monday, July 20, 2026
Boris Cherney reveals that Anthropic uses Claude Code internally, built on the same public API as their customers. This practice, known as 'dogfooding,' allows them to benefit directly from model improvements, leading to enhanced product capabilities. He notes that model advancements, such as Opus 4.5 and 4.6, have directly correlated with growth inflection points for Claude Code.
“But the thing about cloud code is we are built on the same exact infrastructure that our customers use. This is by design because for Nthropic we build products, but we also build a platform that other developers build on.”
“And you know, many, many thousands of companies build on our platform. And so when you look at cloud code, you know, we use the same public model that everyone does. We use the same exact public anthropic API that everyone does. We don't have some secret API that we use. We use the same exact API. And we call this dog fitting, right like the ideas like you build a product, you got to use your own product because that helps you make it a lot better.”
“And so when the model got better, we benefited from this on the quad code side because we you know, use the model through then the thropic API, and a lot of our customers saw the same thing, said they saw a lot of the same growth for the same reason.”