Anthropic ends 2025 at roughly $9bn annualised revenue run rate

Reports put Anthropic’s annualised revenue run rate at roughly $9 billion by the end of 2025, up from an approach to $7 billion in October and from about $1 billion a year earlier — a roughly ninefold increase over 2025. Anthropic itself later cited the same end-of-2025 figure as a comparison point when it announced a much higher run rate in 2026, lending it more weight than a single press estimate normally carries.

Coverage attributed the growth chiefly to enterprise adoption of Claude, reporting that Anthropic’s business customer base grew from fewer than 1,000 companies to more than 300,000 over roughly two years, driven by enterprise subscriptions, API access, custom engineering contracts and partnerships including Microsoft and Salesforce. One report projected Anthropic would break even by 2028, against a later date estimated for OpenAI, on the reasoning that Anthropic’s compute costs per dollar of revenue were lower — a claim about relative unit economics rather than a confirmed figure from either company.

The run rate would keep climbing sharply into 2026, crossing $19 billion and later more than $30 billion within months, a pace that makes any single figure from this period a snapshot rather than a stable number; it is presented here as reported at the time, alongside the $13 billion Series F that valued Anthropic at $183 billion in September and OpenAI’s own run rate crossing $20 billion the following month.