Invest3 publishers2 min readPublished
Meta halves internal use of Anthropic's Claude Code to about 30,000 staff
Meta's internal Claude Code users fell from about 60,000 to 30,000 this year, and Microsoft cut a projected $1 billion-plus Anthropic budget by over a third. With two unnamed customers supplying a quarter of Anthropic's revenue, investors need to know whether those cuts reach them.
The Investor · Invest desk
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What happened
- Meta spent more than $105 million on Claude Code in one recent 28-day period, before tighter controls took hold.
- Meta's in-house coding tools have grown, with more than 30,000 users on MetaCode and more than 6,000 on Muse Code.
- Microsoft cut monthly budgets from $100,000 to about $10,000 and is steering internal work to GitHub Copilot CLI and OpenAI models.
- Customer-facing Claude use through Microsoft's Azure keeps growing, and customer spending on Claude through Amazon's Bedrock is rising.
- Both companies want more control over rapidly rising AI costs as they push their own tools, according to The Information.
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Why it matters
- exposure Investors weighing Anthropic's IPO cannot tell from the 25% disclosure whether Meta's halving hits one of the company's two biggest revenue lines or a smaller account.
- precedent Customers that build their own models have the same cost and data-control case for moving coding work in-house, so Anthropic's direct seats at those buyers are the first revenue at risk.
- constraint Microsoft cut its engineers' Claude budget while its investment of up to $5 billion stays in place, so a strategic stake does not lock in a backer's internal spending.
At the pace of that 28-day bill [8], Meta's spending on Claude Code ran to about $1.37 billion a year [15]. That is the same order as the more than $1 billion Microsoft once projected for all its internal Anthropic spending [3]. Crypto Briefing's account of The Information's October 5 report [1] does not say where in the year the period fell. If it came early, when Meta had about 60,000 users, it works out to about $1,750 a head per 28 days. At 30,000 users it is about $3,500 [16][2].
Microsoft's cut is easier to size, or rather its floor is: more than a third off a projection above $1 billion is more than $333 million a year [14]. Its monthly budgets fell by 90% [17]. Both figures can be true if the smaller budgets cover only part of the spending, or if full-price months earlier in the year hold the annual total up. The cuts gathered pace in spring and summer [10].
The prospectus figure, about 25% of revenue from two unnamed customers [13], means different things depending on who they are. If they are the cloud channels, the cuts sit outside the concentration, and demand through those channels is growing [4][6]. Should one be Meta buying seats directly, the halving at Meta [2] lands on a quarter of revenue. Microsoft booked as a single customer, internal and Azure together, would net the cut against the growth inside one line (a steady 25% share could hide a changing mix).
I think the exposed revenue is the direct seat sold to a customer that also builds models. As Anthropic's products overlap with what Meta and Microsoft sell or build, those buyers have reasons of cost and data control to keep code on their own systems [11]. Meta has already moved. Its two replacement tools count more than 36,000 users between them [18], though one engineer can appear in both counts.
A second Crypto Briefing write-up reads the pullback as a possible decline in Claude's competitive standing among AI models [19]. That reading and mine split at the cloud channels. A model losing on quality would lose resale demand as well, and customer spending through Azure and Bedrock is rising [4]. The view is wrong if that resale growth stalls while seat cuts spread to buyers that do not build their own models.
What to watch
- Whether MetaCode and Muse Code keep adding users toward the roughly 60,000 who used Claude Code at the start of 2026.
- Any update to Anthropic's filing that names the two customers behind about 25% of revenue or splits sales between direct seats and cloud resale.