On April 29, 2026, Reuters, citing Bloomberg, reported that Anthropic is weighing a new funding round at a valuation exceeding $900 billion — a figure that would top OpenAI. CNBC followed with its own coverage. The timing is compressed: only about two and a half months had passed since Anthropic closed its $30B Series G at a $380B post-money valuation in February.
More Than Doubling in Two Months
Going from $380B to above $900B is a total valuation more than twice as high, in roughly eleven weeks. Valuation is not a pure sentiment indicator: in capital-market language it reflects two things at once — a re-rating of the revenue trajectory, and the capital required for future compute commitments. Getting an “under discussion” price to this level means prospective investors already have basic agreement on both.
Everything is still at the weighing stage, to be clear. The sourcing runs through Bloomberg’s report, and between “weighing” and agreed terms and a formal close, uncertainty remains.
The Valuation Race With OpenAI
The timing gives the news extra tension. OpenAI had just closed its record $122B round at an $852B post-money valuation on March 31. If Anthropic settles above $900B, the ranking between the two flips for the first time, and the “most valuable” title changes hands. On the question of who actually leads frontier models, the capital market is clearly rewriting its answer — and doing so right after OpenAI set a new record.
Why New Capital Now
A frontier lab’s capital needs are dominated by compute: training the next model generation, expanding inference capacity, and locking in multi-year power and land commitments — each a tens-of-billions proposition. February’s $30B does not stretch far at that scale. If the reports are right, Anthropic’s choice to return to the market now suggests it intends to load up on ammunition in one pass, rather than raise repeatedly and pay the negotiation cost each time.
What to Watch
- Whether the round happens, and where the final size and valuation land
- Whether OpenAI’s potential IPO timeline shifts in response
- The official explanation of use of funds: compute, enterprise product, or both
Nothing is guaranteed at the weighing stage. But the mere fact that the market will entertain a price above $900 billion for Anthropic says most of what needs saying about the first half of 2026: capital keeps concentrating into frontier model companies, and Anthropic is now being priced in the same weight class as OpenAI.
Sources
AI-assisted summary compiled from the sources above, reviewed by a human before publishing.