Anthropic's Quarterly R&D Outspends Microsoft's $9.05 Billion

Anthropic spent roughly $9.5 billion on research and development in the third quarter, surpassing Microsoft's $9.05 billion, according to figures in the San Francisco company's amended IPO prospectus filed November 2. Among companies that publish an R&D line, only Alphabet, Meta, Apple and Samsung Electronics reported more in their latest quarter.

The number is a derived one. Anthropic reports R&D as a nine-month total in a note to its financial statements: $19.24 billion through September 30. Subtracting the $9.74 billion reported for the first half in the October 26 filing leaves about $9.5 billion for July through September, by R&D World's calculation. That quarterly figure runs about 5.4 times the $1.74 billion Anthropic spent in the same quarter of 2025.

The scale becomes clearer against the drug industry, the traditional benchmark for corporate research budgets. In the first half, Anthropic's R&D already rivaled Eli Lilly's. In the third quarter it ran more than double the ongoing R&D of Lilly ($4.25 billion) and of Johnson & Johnson (about $3.65 billion across drug and medtech businesses, excluding acquired drug candidates). J&J's reported R&D line of $4.65 billion included roughly $1.0 billion for its acquisition of Firefly Bio.

What does an R&D dollar buy at an AI company?

Not what it buys at Microsoft or Apple. Anthropic states its R&D expense "primarily consist[s] of compute and infrastructure costs associated with model development, research, and internal usage workloads," along with personnel, software and overhead. A dollar of Anthropic R&D therefore buys mostly computing time for training and running models, while the larger technology companies spread R&D across engineering staff and many product lines. Any comparison across these lines measures spending, not research output.

Most of that compute is rented. Anthropic says it financed its compute "primarily under arrangements with CSPs," or cloud service providers, with costs recognized as compute becomes available, and that before 2026 it obtained substantially all of it from three of them. Amazon is one of those suppliers and one of Anthropic's investors. Amazon completed a $4 billion investment in 2024 and added another $5 billion in May 2026; in April, Anthropic committed to spend more than $100 billion over 10 years on up to 5 gigawatts of AWS capacity. Anthropic's compute payments, including the share booked as R&D, become revenue for its cloud suppliers.

Some of that capacity now functions as part of the research workforce. Anthropic said approximately 30,000 AI agents were doing research and engineering work at any given time on its most-used internal platform in August. Its prototype R&D Automation Index rated Claude as leading 26% of measured AI R&D work — meaning it could complete most of a task from a high-level prompt, with a human supervising. "AI systems are getting more powerful, and they're increasingly being used to build the next version of themselves," the company wrote in its report on internal AI development.

OpenAI follows a similar playbook. By mid-August its research organization was using 3.1 agent-workdays for every human workday, according to a September report. That metric measures agent runtime, with each workday defined as eight hours, and OpenAI cautioned that activity metrics translate imperfectly into research progress.

The amended filing also showed Anthropic holding $131.8 billion in cash, cash equivalents and short-term investments on September 30, against about $895.4 billion in purchase commitments and lease agreements, CNBC reported.

How the ranking was built

• Alphabet: $20.64 billion (quarter ended Sept. 30, 2026)
• Meta: $20.05 billion (Sept. 30, 2026)
• Apple: $11.73 billion (June 27, 2026)
• Samsung Electronics: about $10.2 billion (Sept. 30, 2026)
• Anthropic: about $9.5 billion (Sept. 30, 2026)
• Microsoft: $9.05 billion (Sept. 30, 2026)
• NVIDIA: $7.05 billion (July 26, 2026)
• Eli Lilly, ongoing: $4.25 billion (Sept. 30, 2026)
• Johnson & Johnson, ongoing: about $3.65 billion (Sept. 27, 2026)

The ranking excludes Amazon, which reports a broader technology and infrastructure expense of about $34.8 billion for the quarter, covering data centers, depreciation, rent, utilities and other costs. The European Commission's Industrial R&D Investment Scoreboard counts that whole line as R&D and ranks Amazon first among corporate spenders. Samsung's figure of 14.4 trillion won, stated on its October earnings call, converts to about $10.2 billion at the quarter's average exchange rate. Huawei, which reports R&D once a year, spent 192.3 billion yuan in 2025, an average of about $6.7 billion a quarter.

The comparison covers only companies that disclose R&D. OpenAI's most recent figure is $19.18 billion for 2025, from audited accounts Fortune reported in June — about equal to Anthropic's spending across the first nine months of 2026. OpenAI postponed its IPO this fall, and its 2026 R&D remains private.

Anthropic and OpenAI both appear on R&D World's list of the 100 most innovative companies of 2026. R&D World's 2026 Global R&D Funding Forecast found Alphabet and Meta together reported $118.5 billion of R&D expense in 2025, slightly more than the $117.2 billion total of the 10 largest drugmakers by revenue. As Anthropic moves toward a public listing, its quarterly disclosures will for the first time give R&D managers a standing, audited view of how quickly compute-based research budgets are converging with those of the world's largest industrial spenders.