I was watching the market feed when the headline landed: Anthropic’s number flashed higher than OpenAI’s. You felt that hitch in your chest—momentary, sharp—and I did too. In that instant the quiet rules of private valuations felt like a scoreboard rewiring itself, like a buzzer-beating shot.
On a trading desk, a single number can rewrite narratives
I read Anthropic’s announcement and you probably saw the same sleepless scroll: a Series H headline that reported $65 billion (≈€60 billion) raised, led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia, and a post-money valuation of $965 billion (≈€888 billion).
That places Anthropic — “the Claude one” — technically ahead of OpenAI, whose own recent public value sits at about $852 billion (≈€784 billion). Headlines like that make for instant rivalry: Claude versus ChatGPT, new king versus entrenched favorite.
Is Anthropic now worth more than OpenAI?
Yes, by the current private-market metrics, Anthropic holds the higher headline valuation. But private metrics are noisy. OpenAI’s $852 billion figure came from an earlier funding round; Anthropic’s number arrived two months later. It’s like a league table where one team has played an extra match—momentary, but real.
In the corridors of investment banks, every claim meets skepticism
People on trading floors and in research rooms point out that AI as a standalone profit engine remains unproven.
Critics from Ed Zitron to HSBC have flagged the risk: one profitable quarter in the books isn’t the same as sustained earnings. The Wall Street Journal noted Anthropic’s claim of a profitable quarter but also questioned the accounting methods used to book revenue and costs. That’s not a knockdown argument, but it is a reason to keep your guard up.
Why did Anthropic overtake OpenAI?
Because money followed customers. Anthropic’s enterprise deals ramped revenue quickly — reported growth moving from about $4 billion (≈€3.7 billion) to $9 billion (≈€8.3 billion) in a short span — and investors respond to momentum.
Claude Code and similar developer-facing tools rewired expectations about how much real work an AI system can take off a human’s plate. Announcements of small product upgrades began to move market caps and SaaS valuations. OpenAI, lately, is cast as the chaser.
At engineering tables, the cost side reads like a ledger of hunger
I’ve watched engineers and ops leads sketch server bills; Anthropic’s list of commitments is public and heavy.
The company has signed deals worth “hundreds of billions of dollars” with cloud and chip providers (≈hundreds of billions of euros), and it reportedly committed $1.5 billion per month (≈€1.4 billion) to SpaceX in the near term. Those are enormous run rates. A single profitable quarter doesn’t cancel those obligations.
On secondary markets, the rumor mill becomes price discovery
Look at the screens on platforms like Forge Global: they now show Anthropic’s estimated value eclipsing OpenAI’s — roughly $1 trillion (≈€920 billion) versus OpenAI’s ~$880 billion (≈€810 billion).
Polymarket’s betting market gave Anthropic an 89% chance of being worth more than OpenAI at the end of June. Gambling markets and private-price platforms aren’t formal audits, but they nudge sentiment. Sentiment moves capital, and capital writes stories.
Will these private valuations hold after an IPO?
Public listing will force transparency. Reports say OpenAI filed confidentially around May 22 and Anthropic could IPO as soon as October. When shares are tradable on public exchanges, price discovery happens in real time under regulatory light.
If you trade in public markets, you know the river changes once it hits open water. Forge and Polymarket are tributaries; the IPO is the river’s mouth.
At the product teams, small changes are giant signals
I sat in a developer briefing where a minor Claude Code tweak prompted audible excitement; investors heard the same signal a heartbeat later.
That’s the new playbook: product cadence becomes market cadence. Every tweak can alter narratives about productivity, labor displacement, and the economics of software development. For startups and incumbents, that creates pressure to keep pace — and it forces investors to price potential, not just current cash flows.
So where does this leave you and me? We watch private valuations jump like quicksilver, anchored to incomplete data and amplified by platforms from Forge Global to Polymarket and by coverage in the Wall Street Journal, New York Times, CNBC, and Forbes. We watch founders and VCs reprice futures.
If Anthropic’s IPO proves its revenue and accounting, the crown will stick. If public scrutiny reveals volatility or heavier-than-expected spending, markets will reassign value in a hurry, like a weather front shifting an entire skyline.
Which will it be—stable new king, or a surge that recedes under public light?