Anthropic Abandons Git For In-House Version Control System

Anthropic has decided to abandon Git, the widely used version control system, in favor of an in-house solution for its monorepo. This decision signals a strategic pivot toward greater control over its development infrastructure. The company is reportedly building a custom version control system tailored to its specific needs, which may offer enhanced security, performance, or integration with its existing tools. This move aligns with Anthropic's broader efforts to optimize its operations as it approaches its planned November IPO.

The company's third-quarter revenue reached $16.8 billion, marking a 45 percent increase from the second quarter. This growth, however, has not been enough to counteract the slowing pace of expansion in a challenging market. Anthropic shared these figures with potential investors during a private meeting in San Francisco, according to multiple US media reports. The company's financial performance has been a key focus for investors ahead of its anticipated IPO in November.

Anthropic's Q3 revenue of $16.8 billion is more than 3.6 times its total annual revenue for 2025. This figure highlights the company's rapid growth, though the pace of expansion has begun to slow. The Financial Times reported that this was the second consecutive quarter of adjusted profitability for the AI lab. These numbers underscore the company's financial strength, even as it faces headwinds from a competitive and maturing AI market.

The shift to an in-house version control system may increase development costs and require significant investment in engineering resources. It could also lead to vendor lock-in, as the company becomes reliant on its own infrastructure rather than widely adopted open-source tools. Governance and collaboration across teams may become more complex, and the move could influence market perceptions of Anthropic's technical capabilities and long-term strategy.

The decision to move away from Git reflects a broader trend among large tech firms to build proprietary tools that align with their unique workflows and security requirements. While this approach may offer long-term benefits, it also introduces risks related to scalability, maintenance, and interoperability. As Anthropic continues to develop its in-house system, the company will need to balance innovation with practical considerations to ensure smooth operations and sustained growth.