Microsoft and Meta are increasingly directing their employees to use proprietary AI tools internally, even as they continue offering Anthropic’s Claude to customers. This shift, detailed in a report by The Information, reflects growing concerns around AI costs, product development priorities, and long term platform strategy.
Both tech giants remain commercial partners of Anthropic and continue to offer Claude through customer facing products. However, internally, they are encouraging greater adoption of their own AI systems. The move highlights a broader trend in the technology industry, where organizations are balancing access to leading third party AI models with the strategic advantages of building and refining their own platforms.
Microsoft’s internal AI strategy is increasingly focused on driving usage of its own tools while managing rising expenditure on external models. According to The Information, Microsoft had initially projected spending at least $1 billion this year on Anthropic’s technology. However, the company has since reduced that estimate by more than one third and is now encouraging employees to use its own AI products wherever possible.
The shift began with Microsoft’s December rollout of Claude Code, Anthropic’s coding assistant, to thousands of employees. While the tool gained traction among engineering teams, Microsoft later shifted its focus towards GitHub Copilot CLI, its own AI powered coding solution. The report noted that Microsoft’s Experiences + Devices division, which oversees products including Windows, Microsoft 365, and Surface, was preparing to discontinue most Claude Code licenses by the end of June.
Beyond cost considerations, Microsoft wants engineers to spend more time working with its own AI products and contributing feedback to improve them. Despite the internal transition, Microsoft continues to support Anthropic’s models across several business offerings. Claude remains available through Microsoft Foundry and is also used in selected workflows across Microsoft 365 and Copilot products.
Meta is pursuing a similar strategy by increasing reliance on internally developed AI coding tools. According to The Information, the number of Meta employees using Claude Code has fallen to around 30,000, down from approximately 60,000 earlier this year. Part of the decline coincides with workforce reductions affecting roughly 10% of Meta’s employees. However, the report said the company is also actively promoting coding platforms built around its own AI models.
Key developments at Meta include its growing emphasis on in house AI tools, which aligns with broader efforts to strengthen its own AI ecosystem while reducing dependence on external providers. The internal changes at Microsoft and Meta come as organizations gain a clearer understanding of the financial implications of large scale AI deployment.
Earlier reports by Axios highlighted a case where a client received a monthly Claude related bill of approximately $500 million after failing to establish sufficient usage controls on employee licenses. This example underscores a challenge facing enterprises worldwide, as AI adoption accelerates across software development, operations, and knowledge work functions.
For technology leaders, the debate is increasingly shifting from AI access to AI economics, governance, and long term value creation. The latest developments do not signal a breakdown in relationships between Microsoft, Meta, and Anthropic. Instead, they reflect a more nuanced approach in which technology companies continue offering third party AI models to customers while simultaneously strengthening adoption of their own platforms internally.
As AI becomes embedded deeper into enterprise workflows, companies are likely to evaluate not only model performance but also cost efficiency, ecosystem control, and product differentiation. For large technology firms investing billions in proprietary AI capabilities, internal adoption may become as strategically important as external revenue generation.
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