By April 2026, the value of Claude’s internal use at Anthropic, calculated at its external customer list price, had exceeded its monthly personnel costs (excluding equity compensation). This disclosure appeared in the company’s IPO prospectus filed on October 26, 2026, but this comparison does not reveal the actual compute costs underlying this usage.
Key points
- Claude's internal usage value increased more than 250-fold from January to September 2026.
- By September 2026, Claude generated over 90% of Anthropic’s new software code.
- Personnel cost comparisons do not include employee equity awards.
How does Anthropic measure the value of internal Claude usage?
Anthropic values its internal use of Claude at the list price charged to external customers. According to this 335-page prospectus, as of April 2026, this valuation has exceeded monthly employee salaries.
Personnel costs include salaries, bonuses, benefits, and contributions, but exclude equity awards. The document states that the value assigned for internal use increased more than 250-fold between January and September 2026.
Claude wrote most of the new code and also helped develop its subsequent versions.
By September 2026, Claude had written over 90% of the new code added to Anthropic’s software. The prospectus also describes the model’s role in developing future versions of Claude.
Anthropic states that internal use of Claude enhances team productivity and helps improve subsequent models. As a result, the company’s reliance on this tool extends beyond everyday programming to include the development of future versions of Claude.
The company has approximately 5,300 employees. According to the prospectus, revenue growth per employee has outpaced employee headcount growth.
Customer spending and a $380 billion valuation
Anthropic’s prospectus shows that more than 11,900 customers spend over $100,000 annually. Approximately 1,900 of these customers spend over $1 million per year, and about 250 spend over $10 million.
After completing a $30 billion funding round in February 2026, the company’s valuation reached approximately $380 billion. These figures align with the documentation’s descriptions of rapid expansion in internal AI usage and substantial customer spending.
The computational costs behind the comparison have not yet been disclosed.
This IPO prospectus does not disclose the actual compute costs Claude incurs internally, nor does it provide the specific dollar amount for the valuation of this usage as of April 2026.
Therefore, Anthropic measures the usage of Claude internally based on customer pricing, while employee cost metrics include salaries, bonuses, benefits, and contributions. The disclosure threshold is: the valuation at list price exceeds monthly personnel expenses, and employee equity is not included.
This article was generated with the assistance of artificial intelligence and reviewed by the editorial team.
Francesco Antonio Russo
A Web 3.0 entrepreneur with over four years of experience focused on cryptocurrency and artificial intelligence. He applies interdisciplinary skills to functional and trend-driven social media management.