Anthropic vs. OpenAI: How Big Are They Side-by-Side?
Direct Comparison (2026-Q4): As of 2026-Q4, Anthropic is valued at $965B compared to OpenAI's $1.3T—making OpenAI 1.3× larger by valuation. By workforce, Anthropic employs 2,500 people vs. OpenAI's 4,500 employees (1.8× difference), yielding a valuation-per-employee of $386.0M / emp for Anthropic vs. $277.8M / emp for OpenAI.
Full Metrics Breakdown
| Business Metric | Anthropic | OpenAI | Scale Comparison |
|---|---|---|---|
| Valuation / Market Cap | $965B | $1.3T | OpenAI is 1.3× larger |
| Employee Headcount | 2,500 employees | 4,500 employees | OpenAI employs 1.8× more people |
| Monthly Active Users (MAU) | 65M MAU | 550M MAU | OpenAI has 8.5× more MAU |
| Valuation per Employee | $386.0M / emp | $277.8M / emp | Efficiency comparison |
| Listing Status | Private Venture | Private Venture | Market Structure |
| Data Freshness Snapshot | 2026-Q4 | 2026-Q4 | Verified ground-truth |
Company Insights & Context
Anthropic: Anthropic closed a landmark $65B Series H in May 2026 valuing the Claude creator at $965B, followed by filing its S-1 statement for a historic Nasdaq IPO.
OpenAI: OpenAI reached a valuation of $1.25 trillion in 2026, with ChatGPT serving over 550M monthly active users across consumer, education, and enterprise tiers.
Frequently Asked Questions
What is Anthropic's valuation compared to OpenAI?
As of 2026-Q4, Anthropic is valued at $965B while OpenAI is valued at $1.3T. This means OpenAI is 1.3× larger.
How many employees does Anthropic have compared to OpenAI?
Anthropic employs 2,500 employees, while OpenAI employs 4,500 people. That is, OpenAI employs 1.8× more people.
Which company has higher valuation per employee: Anthropic or OpenAI?
Anthropic currently stands at $386.0M / emp, compared to OpenAI's $277.8M / emp.