Anthropic was already the fastest-growing company of all time, and it seems that its growth is showing no signs of slowing down.
A new report from semiconductor and AI infrastructure research firm Semi Analysis reveals that Anthropic’s annualized run-rate revenue (ARR) — a measure of monthly revenue extrapolated across twelve months, not actual annual revenue collected — has surged to over $44 billion. That figure represents a staggering leap from the $9 billion ARR the company reported at the end of 2025, meaning Anthropic has roughly quintupled its run rate in a matter of months.
Semi Analysis attributes the acceleration to a flood of enterprise demand, noting that end users are seeing an enormous return on investment from consuming tokens — and that this demand is “arguably only in its early innings.” Alongside the revenue explosion, the report highlights a sharp improvement in unit economics: Anthropic’s gross margins on inference infrastructure have climbed from 38% to over 70% over the same period, a signal that the company is not just growing fast, but growing more efficiently.
A Growth Trajectory With No Historical Precedent
To appreciate where $44 billion ARR stands, it helps to chart how Anthropic got here. CEO Dario Amodei has noted that the company’s revenue has grown roughly 10x every single year since it earned its first dollar:
- 2022: ~$10M ARR
- 2023: ~$100M ARR
- December 2024: ~$1B ARR
- Mid-2025: ~$4.5B ARR
- September 2025: ~$7B ARR
- December 2025: ~$9B ARR
- February 2026: ~$14B ARR (at the time of its $30 billion Series G raise)
- March 2026: ~$19B ARR
- April 2026: ~$30B ARR
- May 2026: $44B+ ARR (per Semi Analysis)
As one venture capitalist put it after reviewing Anthropic’s data: “We’ve looked at the IPOs of over 200 public software companies, and this growth rate has never happened.” It still hasn’t slowed down.
Enterprise Is the Engine
Anthropic’s growth is not being driven by consumer subscriptions — it is fundamentally an enterprise story. Eight of the Fortune 10 are now Claude customers, and the number of businesses spending over $1 million annually on Claude has grown from a dozen two years ago to over 1,000 today. Customers spending over $100,000 annually have grown 7x in the past year alone.
Anthropic’s share of business AI spending — measured against OpenAI — went from roughly 10% at the start of 2025 to over 65% by February 2026. That reversal has been driven in large part by Claude Team, which found strong product-market fit among small and mid-sized businesses in legal, finance, consulting, and communications. Claude is also the only frontier AI model available across all three major cloud platforms: AWS Bedrock, Google Cloud Vertex AI, and Microsoft Azure Foundry — a distribution advantage no competitor currently matches.
Claude Code: The Breakout Product
A significant share of recent growth is attributable to Claude Code, Anthropic’s agentic coding platform. Launched publicly in May 2025, Claude Code hit $2.5 billion in annualized revenue by February 2026 — a figure that has continued to climb since. Weekly active users have doubled since January 2026, and recent analysis estimates that 4% of all GitHub public commits worldwide are now being authored by Claude Code. Enterprise use now accounts for over half of all Claude Code revenue.
Margins Tell the Real Story
The Semi Analysis finding that gross margins have expanded from 38% to over 70% may be the most consequential data point in the report. Revenue growth at this pace is remarkable; revenue growth combined with rapidly improving margins suggests Anthropic is building a structurally sound business, not just burning capital to buy market share. The company projects reaching profitability by 2028 — years ahead of its chief rival, OpenAI, which does not expect to break even until after 2030.
What Comes Next
Anthropic is reportedly eyeing a public listing as early as late 2026, with Goldman Sachs, JPMorgan, and Morgan Stanley in early conversations. The company is targeting $26 billion in actual annual revenue by year-end 2026 — a number that, given the current run-rate trajectory, no longer looks implausible. Semi Analysis’s $44 billion ARR figure, if it holds, would put Anthropic on a pace to blow past that target well ahead of schedule.
The demand, as Semi Analysis notes, appears to be structural rather than episodic. Enterprises are not experimenting with Claude — they are embedding it into mission-critical workflows, signing long-term contracts, and expanding usage month over month. Whether the $44 billion run rate represents a ceiling or another waypoint in Anthropic’s exponential climb is the defining question for the AI industry right now.