India, Dec. 3 -- Anthropic says the past six months have changed how many teams build software. Claude Code, which became generally available in May 2025, has moved from an internal experiment to a mainstream coding assistant adopted by Netflix, Spotify, KPMG, L'Oreal, and Salesforce. The company says it crossed USD 1 billion in run-rate revenue in November, making it one of the fastest-growing AI tools in the developer space.

With AI now part of day-to-day engineering work, Anthropic argues that the performance of underlying tools has become more important. That is what drew the company to Bun.

Bun launched in 2021 as a rethink of the JavaScript toolchain. It combines a runtime, package manager, bundler, and test runner. Its speed has ...