Meta and Microsoft cut back on Anthropic’s Claude for in-house AI

Meta and Microsoft are scaling back their internal use of Anthropic’s Claude AI technology, according to a report by The Information. Both companies are directing employees toward their own proprietary AI tools as part of cost-cutting measures and a push to develop in-house solutions.

Earlier this year, Microsoft had projected spending at least $1 billion on Anthropic’s technology, but that figure has been reduced by more than a third. Microsoft leadership has reportedly asked employees to minimize their use of Claude and instead rely on the company’s own AI offerings. This shift applies only to internal operations, as customer spending on Anthropic models via Microsoft’s enterprise platforms continues to grow.

At Meta, the usage of Anthropic’s coding assistant, Claude Code, has dropped to around 30,000 employees from approximately 60,000 earlier this year. While layoffs contributed to this decline, the primary reason is Meta’s aggressive push to develop its own AI ecosystem. The company has rapidly advanced its proprietary AI coding tools, including the Muse Spark line of models, which have largely replaced Claude.

In August, Meta began external testing for Muse Code, a direct competitor to Claude Code, which has already attracted over 6,000 internal users. Meanwhile, MetaCode, a tool built exclusively for internal use, has surpassed 30,000 users, indicating a strong shift toward Meta’s own AI solutions.