What’s the big deal
Salesforce took 20 years to reach $30 billion in annual revenue. Anthropic did it in under three years from its first dollar. The company was essentially pre-revenue in early 2024. By January 2025, it had reached $1 billion in annualised revenue. By the end of 2025, $9 billion. Then it tripled in four months: $14 billion in February 2026, $19 billion in March, $30 billion in April. That last stretch, $14 billion to $30 billion in roughly eight weeks, has no precedent in the history of enterprise software. As of April 2026, Anthropic’s revenue run rate exceeds OpenAI’s for the first time, driven by an enterprise-heavy revenue mix where 80% of income comes from business customers rather than consumers. Over 1,000 companies now spend more than $1 million a year on Claude, a figure that doubled in under two months. By mid-May, run-rate revenue had crossed $47 billion, a fivefold increase from six months earlier, and on 28 May Anthropic closed a $65 billion round at a $965 billion valuation, becoming the world’s most valuable private company before filing for an IPO on 1 June. But the growth comes with context: Anthropic reports revenue from cloud resellers on a gross basis, which inflates top-line figures relative to net-reporting peers, and the company is still burning billions of dollars a year in cash.
What it is
This page tracks Anthropic’s financial trajectory: revenue milestones, funding rounds, valuation history, enterprise adoption metrics, and the path to a potential IPO.
Revenue timeline
January 2024 — Approximately $87 million annualised run rate.
January 2025 — $1 billion annualised. Less than two years after Claude’s March 2023 launch.
May 2025 — Claude Code reaches general availability, becomes a major revenue driver.
August 2025 — $5 billion annualised. Anthropic is now one of the fastest-growing technology companies in history.
October 2025 — Claude Code crosses $500 million in annualised revenue with 10x usage growth in three months. 300,000+ business customers.
December 2025 — $9 billion annualised. Claude Code crosses $1 billion in annualised revenue roughly six months after GA.
February 2026 — $14 billion annualised (disclosed at Series G). Claude Code at $2.5 billion, more than doubling since the start of 2026. Over 500 companies spending $1 million+ annually.
March 2026 — $19 billion annualised (Bloomberg).
April 2026 — $30 billion annualised (Bloomberg, confirmed by Anthropic). Over 1,000 companies spending $1 million+ annually, doubling from 500 in under two months. Revenue surpasses OpenAI’s approximately $24 to $25 billion for the first time.
May 2026 — $47 billion annualised, confirmed by Anthropic at the Series H close. Revenue has grown roughly fivefold from $9 billion at the end of 2025. Gross margins reported to have improved to over 70%.
Where the money comes from
Approximately 80% of Anthropic’s revenue comes from business customers, with the remainder from consumer subscriptions (Pro, Max). The enterprise revenue mix breaks down across three channels: direct API contracts where companies build Claude into their own products, cloud reseller agreements through AWS Bedrock, Google Vertex AI, and Microsoft Azure Foundry, and subscription plans for teams and enterprises.
Claude Code is the single largest product revenue driver, generating over $2.5 billion in annualised revenue as of February 2026. Enterprise use now represents over half of all Claude Code revenue. Business subscriptions to Claude Code have quadrupled since the start of 2026.
The number of customers spending over $100,000 annually has grown 7x in the past year. Eight of the Fortune 10 are Claude customers. According to Ramp, a corporate expense platform tracking real spending across 50,000+ businesses, 42.4% of US businesses with paid AI subscriptions now pay for Anthropic as of July 2026, up from 16% a year earlier and ahead of OpenAI’s 39.5%. Anthropic overtook OpenAI on this measure for the first time in April and is now the model new AI buyers most often choose.
An important caveat on how to read the numbers. Anthropic reports revenue from cloud resellers on a gross basis, counting total end-customer spend as revenue and booking partner payouts as expenses. This inflates top-line figures relative to companies that report on a net basis. The revenue figures are real, but direct comparisons to net-reporting peers require adjustment.
Funding rounds
Anthropic has raised approximately $125 billion in total funding across 18 rounds.
Series H — May 28, 2026. $65 billion at $965 billion post-money valuation, the largest private funding round in history. Co-led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital, with Capital Group, Coatue, D1 Capital Partners, GIC, ICONIQ, and XN co-leading. Institutional participants included Baillie Gifford, Blackstone, Brookfield, D.E. Shaw Ventures, DST Global, Fidelity, Lightspeed, T. Rowe Price, and Temasek. Strategic memory and compute suppliers Micron, Samsung, and SK Hynix joined, a sign the round doubled as supply-chain alignment for the hardware Anthropic needs to scale. Roughly $15 billion was previously committed hyperscaler money, including $5 billion from Amazon announced in April. The round made Anthropic the world’s most valuable private company, surpassing OpenAI’s $852 billion, and is expected to be its last private raise before going public.
Series G — February 12, 2026. $30 billion at $380 billion post-money valuation. Led by GIC and Coatue. Co-led by D.E. Shaw Ventures, Dragoneer, Founders Fund, ICONIQ, and MGX. Microsoft and Nvidia contributed up to $15 billion. Anthropic initially sought $10 billion but increased the target after attracting demand several times larger. A tender offer at the same valuation allowed employees to sell shares.
Series F — September 2, 2025. $13 billion at $183 billion post-money valuation. Led by ICONIQ, co-led by Fidelity and Lightspeed.
Series E — March 3, 2025. $3.5 billion at $61.5 billion post-money valuation. Led by Lightspeed.
Earlier rounds — Amazon has invested a total of $8 billion across multiple rounds. Google has invested $2 billion, including $1 billion in March 2025. Total investors to date: 90+, including 81+ institutional.
The path to profitability and IPO
Anthropic is not yet profitable. The company is burning billions of dollars annually in cash, primarily on compute infrastructure for model training and inference. Internal projections reported by Sacra show the company reaching cash-flow break-even by 2028, after stopping cash burn in 2027. For comparison, OpenAI projects approximately $14 billion in losses for 2026 and does not expect positive free cash flow until 2029 to 2030.
Anthropic’s estimated cloud infrastructure costs through 2029 total approximately $80 billion, reflecting the demands of scaling frontier model training and inference. The April 2026 compute deal with Google and Broadcom secures approximately 5 gigawatts of TPU-based capacity starting in 2027. In May, Anthropic leased 100% of SpaceX’s Colossus 1 data centre, adding over 220,000 Nvidia GPUs immediately. In July, it added a 20-year, $19 billion TeraWulf data-centre lease (401 megawatts in Hawesville, Kentucky, online from H2 2027) and an AMD partnership pairing up to $5 billion of AMD equity investment with up to 2 gigawatts of Instinct MI450 GPU capacity from 2027. Broadcom’s SEC filing noted the scale depends on Anthropic’s “continued commercial success.”
Anthropic filed a confidential draft S-1 with the SEC on 1 June 2026, the first frontier AI lab to do so. At its $965 billion valuation, it would be the largest IPO in history. Goldman Sachs and JPMorgan are leading, with an October 2026 listing widely reported, though the filing ties timing to market conditions and the company has not committed to a date. The Series H is expected to be its last private raise before going public.
How it compares to OpenAI
OpenAI’s annualised revenue was approximately $24 to $25 billion as of March 2026, compared to Anthropic’s confirmed $47 billion run-rate by mid-May. OpenAI’s last completed round valued it at $852 billion; Anthropic’s closed Series H at $965 billion surpassed it for the first time.
OpenAI announced $2 billion in monthly revenue and a $122 billion funding raise at an $852 billion valuation in the same week as Anthropic’s $30 billion disclosure. OpenAI has approximately 900 million weekly active users, with free users accounting for roughly 95%, meaning massive inference costs are not covered by revenue. OpenAI’s enterprise revenue now represents over 40% of total, up from approximately 30% a year earlier, and is on track to reach parity with consumer by end of 2026.
The structural difference is revenue composition. Anthropic’s 80% enterprise mix produces higher retention, lower churn, and contracts that expand over time. OpenAI’s consumer-heavy mix generates more users but at lower revenue per user and higher churn. Anthropic reached $30 billion faster than OpenAI despite having a fraction of the user base, because enterprise contracts are larger and more durable.
Both companies are burning cash at enormous rates. OpenAI has committed over $1 trillion to infrastructure over the next several years and projects a $14 billion loss in 2026. Anthropic’s burn is proportionally large. The investors funding both companies are making a specific bet: that compute costs continue to fall per unit of intelligence, that revenue keeps compounding faster than burn, and that whoever owns the AI infrastructure layer in 2029 will generate returns that make the interim losses irrelevant.
Risks
Pentagon supply-chain risk designation. The Pentagon has declared Anthropic a supply-chain risk, requiring defence contractors to cut ties with the company by 30 June 2026. The designation stems from Anthropic’s usage-policy restrictions that cost it a $200 million defence contract. Over 100 customers have reportedly raised concerns. Anthropic is contesting the designation. The outcome could meaningfully limit access to government and defence-adjacent enterprise customers.
Gross vs net revenue reporting. The revenue figures are reported on a gross basis. Cloud reseller payouts to AWS, Google, and Microsoft are booked as expenses rather than deducted from revenue. This makes direct comparisons to net-reporting companies misleading without adjustment.
Compute cost dependency. The business model depends on compute costs continuing to fall. If they plateau or rise, the margin structure changes fundamentally. The infrastructure commitments through 2029 are a bet on continued cost deflation.
Cash burn. Despite $47 billion in run-rate revenue, Anthropic is not yet profitable and is burning billions annually. The path to positive free cash flow depends on sustaining revenue growth while compute costs decline, neither of which is guaranteed.
Model suspension and regulatory risk. On 12 June, a US government export-control directive forced Anthropic to disable its two most capable models, Fable 5 and Mythos 5, worldwide, the first time a government has pulled a frontier model from the market. The controls were lifted on 30 June after Anthropic agreed to new safeguards and closer government collaboration, and Fable 5 returned on 1 July. But the episode, landing weeks after the S-1 filing, underlines how exposed Anthropic’s frontier roadmap is to regulatory action, and it set a precedent (echoed by OpenAI’s government-gated GPT-5.6 preview) that frontier launches may increasingly require national-security review. That uncertainty now sits in front of prospective IPO investors.
Valuation risk. The $965 billion valuation represents roughly 20x run-rate revenue. If growth decelerates or the IPO window narrows, the gap between private valuation and public market appetite could become significant. Some early backers chose to wait for the IPO rather than join the Series H.
Availability
Anthropic is a private company, though it filed for an IPO on 1 June 2026 and a public listing is expected later in the year. There is no way to buy Anthropic stock directly on public markets as of June 2026. Limited pre-IPO exposure exists through secondary market platforms such as Hiive and Forge Global, restricted to accredited investors, where implied valuations have already approached $1 trillion.