Meta and Microsoft reduce employee use of Anthropic's Claude to cut AI costs

Oct 5, 2026

Meta and Microsoft are sharply reducing their employees' internal use of Anthropic's Claude models to manage rising artificial intelligence costs. Meta halved its internal Claude Code users to 30,000, shifting developers to its proprietary MetaCode tool. Meanwhile, Microsoft cut its projected $1 billion annual internal spending on Anthropic by over a third, lowering individual monthly budgets to $10,000. The shift highlights growing tensions as Anthropic evolves from a supplier into a direct competitor.

Meta's reduction of Claude usage

▪Meta spent over $105 million on Anthropic's Claude Code during a recent 28-day period in 2026 before implementing tighter usage controls.
▪Meta reduced its internal Claude Code users from approximately 60,000 at the start of 2026 to about 30,000 by October 2026.

Meta's internal coding tools

▪Meta utilized around 7,000 weekly active users on its MetaCode platform in August 2026 to gather feedback and refine training runs.
▪Meta expanded its internal-only coding assistant, MetaCode, to more than 30,000 users, and its Muse Code tool to more than 6,000 employee users.

Microsoft's AI spending cuts

▪Microsoft reduced its projected annual internal spending on Anthropic tools by more than one-third from an initial projection of at least $1 billion.
▪Microsoft reduced individual monthly spending ceilings on artificial intelligence models from $100,000 per person to approximately $10,000 in most instances.

Microsoft's shift away from Anthropic

▪Microsoft Azure Cloud head Scott Guthrie and developer tools leader Jay Parikh instructed teams to monitor employee consumption and prioritize non-Anthropic alternatives.
▪Microsoft introduced division-wide token budgets and shifted standard defaults for internal developer tools toward GitHub Copilot CLI and lower-cost OpenAI models instead of Anthropic's Claude.

Microsoft's continued Claude integration

▪Microsoft continues to support Anthropic models across Azure and integrates Claude into Copilot productivity applications, including Word, Excel, and PowerPoint.
▪Microsoft's commercial partnership and investment of up to $5 billion in Anthropic remain intact despite internal cutbacks.

Cooperation and competition with Anthropic

▪The reduction in internal Claude usage at Meta and Microsoft coincided with Anthropic's evolution from a supplier into a competitor.
▪Meta and Microsoft continue to offer Anthropic's Claude to external clients through enterprise products and cloud infrastructure.

Anthropic's financial growth

▪Anthropic's annualized revenue climbed past $65 billion by the close of July 2026, up from approximately $9 billion at the end of 2025.
▪Anthropic's initial public offering prospectus revealed that two unnamed customers account for approximately 25% of the company's revenue.

Debatable claims

▪Restricting access to frontier AI models for startups and deployers hinders innovation and economic growth.
▪Relying on tech rivals for revenue is unsustainable for AI startups
▪Proprietary AI coding assistants are mature enough to replace premium third-party models
▪Tech companies should mandate in-house AI tools for all internal development