A new Anthropic filing ahead of its initial public offering shows up to $4.3 billion in added compute agreements with Microsoft, as first reported by The Information. The Microsoft agreement is now valued at between $47.2 billion and $49.2 billion, up from $44.9 billion in an early-November filing. That filing put Anthropic's aggregate committed spend at about $895.4 billion, substantially all for compute and infrastructure. The company plans to offer Class A common stock at $70 to $78 per share, targeting a $1.4 trillion valuation.
The filing shows how much of Anthropic's spending is tied to compute: $121.3 billion with Google, $120.5 billion with SpaceX, $110 billion with Amazon and now nearly $49 billion with Microsoft. Its $34.9 billion Lambda contract is terminable by either party because Lambda did not secure a facility lease by the required date, though Anthropic says it does not intend to terminate. Anthropic also reported a $567 million third-quarter operating loss, against a $974 million profit the prior quarter, which it attributed mainly to short-term compute deals.
The headline names two major AI players and a specific $4.3 billion compute capacity deal. It ranked above the local zoning stories because of its size and hyperscaler-capacity relevance.