Claude Code ARR Hit $1B in 6 months

Claude Code — the AI coding assistant from Anthropic — has achieved a remarkable milestone of $1 billion in annualized revenue run-rate (ARR) within roughly six months of its public release in May 2025.  This rapid growth underscores how quickly enterprise adoption has ramped up for AI-assisted development tools in 2025.

Claude Code provides developers and engineering teams an AI-powered coding environment that automates many aspects of software creation: from code generation, bundling, runtime, package management, to testing — dramatically streamlining workflows.

Its recent acquisition of Bun — a high-performance JavaScript/TypeScript runtime bundler, package manager, and test runner — is intended to boost performance, stability, and developer experience, making Claude Code more efficient and reliable as usage scales. 

Anthropic’s strategic acquisition of Bun signals a commitment to own the full stack of AI-powered developer tooling — not just the language model. The underlying infrastructure now supports enterprise customers including big names like Netflix, Spotify, Salesforce, KPMG and more. 

This consolidation strengthens Anthropic’s position in the AI tooling market, ensuring tight integration, performance optimization, and long-term control over the product’s technical foundation.