Anthropic Acquires Bun to Boost Claude Code Performance

December 03, 2025
Anthropic has acquired developer tool startup Bun to enhance the performance and stability of its coding agent Claude Code, following the tool’s rapid growth to $1 billion in annualized revenue.

Anthropic has acquired Bun, a developer tool startup, announced in a press release. The acquisition follows the rapid growth of Claude Code, which reached $1 billion in annualized revenue six months after its public release.

Founded in 2021 by Jarred Sumner, Bun is an all-in-one JavaScript toolkit that combines runtime, package manager, bundler, and test runner functions. The software is known for improving speed and reliability in modern software development and has over seven million monthly downloads. Bun will remain open source under the MIT license.

Anthropic stated that integrating Bun will improve Claude Code’s performance and stability, offering faster execution and better workflows for developers. The Bun team will join Anthropic to continue developing its technology while supporting Claude Code’s infrastructure.

The company said Bun has been instrumental in scaling Claude Code since its launch and will continue to underpin the platform’s developer-focused capabilities as Anthropic expands its enterprise AI offerings.

We hope you enjoyed this article.

Consider subscribing to one of our newsletters like AI Funding Brief or Daily AI Brief.

Also, consider following us on social media:

AI Funding News AI Brief AI Brief (X)

More from: Funding

12/03
Avalara Receives $500 Million Investment Led by BlackRock
12/03
Icertis Acquires Dioptra to Expand AI Contracting Capabilities
12/03
Donna Raises €4.1M to Expand AI Assistant for Field Sales Teams
11/27
Parallax Worlds Raises $4.9 Million to Expand Virtual Robot Testing Platform
11/27
GlobalFoundries Acquires AMF and InfiniLink to Expand Silicon Photonics Capabilities

Subscribe to AI Funding Brief

AI Token Webinar

Industry analysis

2025 Global Business Services Agenda: Gen AI Takes Center Stage

The Hackett Group

This industry analysis by The Hackett Group explores the transformative impact of generative artificial intelligence (Gen AI) on global business services (GBS) in 2025. The study highlights the shift from exploration to acceleration of Gen AI initiatives, with 89% of executives advancing these projects to improve customer satisfaction, innovate products, and reduce costs. The report also discusses the challenges and strategies for successful Gen AI adoption, emphasizing the need for a technology-enabled operating model and the importance of reskilling the workforce.

Read more

You May Also Like