Anthropic Is Now the Most Valuable AI Company on Earth

As of May 28, 2026, Anthropic has closed a $65 billion Series H at a $965 billion post-money valuation, according to Crunchbase, CNBC, and TechCrunch. That puts it above OpenAI's $852 billion valuation from March.

A company that didn't exist five years ago is now worth nearly one trillion dollars.

The round was led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital. Co-leaders include Capital Group, Coatue, D1 Capital Partners, GIC, Iconiq Capital, and XN. Institutional names like Baillie Gifford, Blackstone, Brookfield, D.E. Shaw Ventures, DST Global, and Fidelity also participated, per TechCrunch. Samsung, SK Hynix, and Micron came in as strategic infrastructure partners.

$15 billion of the round was previously committed hyperscaler money, including the $5 billion Amazon pledge announced in April, according to multiple sources.

Anthropic has now raised nearly $144 billion since its 2021 founding, per Crunchbase, making it one of the most heavily funded private companies on record.

The Revenue Numbers Are Real — and Massive

Anthropic's run-rate revenue crossed $47 billion earlier in May, according to the company. That's up from a $30 billion run rate earlier this year, and $10 billion in annual revenue last year, per CNBC.

The Wall Street Journal recently reported Anthropic expects a 130% revenue surge that would bring it to its first operating profit. No specific timeline was given, but the direction is clear.

The engine driving this: Claude Code, Anthropic's enterprise AI coding assistant. The company has aggressively targeted business customers rather than chasing general consumers.

Claude Opus 4.8 Dropped the Same Day

Also on May 28, Anthropic released Opus 4.8, its most advanced publicly available model, according to TechCrunch. Standard pricing remains unchanged from the previous Opus release.

This came 41 days after Opus 4.7 dropped — an unusually fast upgrade cycle. TechCrunch noted that Opus 4.7 received a chilly reception from users who found it disappointing. New releases from OpenAI's Codex and Google's Gemini Flash added pressure.

Opus 4.8's standout feature: better handling of bad or uncertain data. Bridgewater Associates told Anthropic the biggest improvement was "Opus 4.8's tendency to proactively flag issues with the inputs and outputs of an analysis" — something other models routinely missed, per TechCrunch.

Anthropic also launched Dynamic Workflows, a research preview feature designed to let Opus manage complex tasks across hundreds of parallel subagents. Think codebase-scale migrations across hundreds of thousands of lines of code, start to finish, according to Anthropic's launch post as reported by TechCrunch.

On the Mythos front: still not widely released. Anthropic said it's making "swift progress" on necessary safeguards and expects to bring Mythos-class models to all customers "in the coming weeks." Zscaler's CEO, per Bloomberg, said Mythos has added "fuel to the fire" in enterprise AI interest — though Bloomberg's paywalled source prevented further detail.

Musk's Lease Claim Contradicts SpaceX's SEC Filing

On the morning of May 28, Elon Musk posted on X that SpaceX's compute deal with Anthropic is "a 180 day lease with 90 day notice mutual cancellation" and called the short term "our request, not Anthropic's."

SpaceX's own S-1 filing with the SEC tells a different story, as reported by TechCrunch.

Page F-62 of SpaceX's S-1 reads: "the customer has agreed to pay a monthly fee through May 2029." Pages 13 and 146 specify: "the customer has agreed to pay us $1.25 billion per month through May 2029." The same language appears on page F-96, repeated four times in the filing.

Musk claims a short-term lease. His company's SEC filing describes a three-year, $1.25 billion-per-month agreement.

SpaceX is currently in a quiet period ahead of its IPO. Making materially false statements about revenue-generating contracts during a quiet period raises questions about SEC enforcement. Whether regulators will take action is unclear.

Neither SpaceX nor Anthropic responded to requests for clarification, according to TechCrunch. xAI also did not respond.

What Mainstream Coverage Is Getting Wrong

Most outlets — CNBC, TechCrunch, Digital Journal — led with the valuation number. The SpaceX SEC filing discrepancy received less attention, yet a CEO publicly characterizing a major commercial agreement in terms that contradict his company's SEC disclosures right before an IPO is a material issue.

Digital Journal did flag Anthropic's ongoing lawsuit against the Pentagon, which other outlets mostly skipped. The company sued the Defense Department after it was designated a supply chain risk — which Anthropic called "unconstitutional retaliation" for refusing to grant the military unfettered model access. The case carries real national security implications.

What This Means for Regular People

If you use Claude Code, Claude.ai, or any of the enterprise tools built on Anthropic's API, you're now a customer of a nearly trillion-dollar company heading toward an IPO. Prices and access policies will follow Wall Street expectations, not just engineering decisions.

For investors watching the AI space: three companies — Anthropic at $965B, OpenAI at $852B, and SpaceX/xAI targeting $1.75T — are racing toward trillion-dollar public listings simultaneously. That represents a significant concentration of capital in a single technology sector.

If Musk's X post about a compute contract actually conflicts with a sworn SEC disclosure, that's a potential federal problem worth monitoring.