Anthropic's Claude Code Achieves $1 Billion ARR in Record Six Months

San Francisco – Anthropic's AI coding assistant, Claude Code, has reached an unprecedented milestone, achieving an annualized revenue run-rate (ARR) of $1 billion in just six months since its public launch in May 2025. This rapid ascent establishes Claude Code as the fastest product in technology history to hit the $1 billion ARR mark. The achievement was highlighted by Deedy Das, a Partner at Menlo Ventures, who noted on social media, "There is a new fastest product in technology history to reach $1B in ARR."

The remarkable growth underscores the escalating demand for advanced AI development tools within the enterprise sector. Claude Code, designed to assist developers and enterprises with autonomous programming, has quickly evolved from an internal project into a critical tool for major companies. Its adoption by industry giants including Netflix, Spotify, and Salesforce demonstrates its significant impact on modern software development workflows.

To further bolster its infrastructure and sustain this explosive growth, Anthropic recently acquired Bun, a high-performance JavaScript runtime. Bun, which already powers Claude Code and the Claude Agent SDK, was integrated to enhance the speed, stability, and overall developer experience. Mike Krieger, Anthropic’s Chief Product Officer, stated that "Bringing the Bun team into Anthropic means we can build the infrastructure to compound that momentum and keep pace with the exponential growth in AI adoption."

This strategic acquisition and the rapid revenue generation signal a pivotal shift in Anthropic's strategy, moving beyond solely model development to owning the full stack of AI-powered developer tooling. The revenue from Claude Code, distinct from Anthropic's broader API business, represents deep integration into corporate production environments, suggesting lower churn rates and robust market validation. The company’s overall run-rate revenue had grown to approximately $1 billion by early 2025, and by August 2025, it reached over $5 billion, further cementing Anthropic's position as one of the fastest-growing technology companies.