Update, 26 Oct: Anthropic’s S-1 shows the filed numbers.Anthropic’s S-1 gives no market-share figure, but it does report net cash provided by operating activities of $3,929 million for the six months ended 30 June 2026, after outflows of $2,637 million in 2025, and operating income of $974 million in the second quarter of 2026. Revenue was $4,585 million in 2025 and $16,286 million in the first half of 2026. More: the adjusted-profit piece.
OpenAI vs Anthropic: Enterprise Market Share Flips from 50% to 25%
OpenAI's enterprisemarket share has declined from 50% to 25% as Anthropic gains ground. According to Menlo Ventures' mid-2025 analysis, Anthropic now commands 32% of enterprise LLM utilization while OpenAI has fallen to 25%.
Anthropic's clarity: "We're an enterprise AI company"โone sentence that clarifies everything.
The Path to Profitability
Read the full analysis: OpenAI's Hardest Business Model Pivot Yet
Real-World Examples
OpenaiAnthropic
Key Insight
OpenAI's enterprise market share has declined from 50% to 25% as Anthropic gains ground. According to Menlo Ventures' mid-2025 analysis, Anthropic now commands 32% of enterprise LLM utilization while OpenAI has fallen to 25%.
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FourWeekMBA x Business Engineer | Updated 2026
OpenAI’s enterprise market share has declined from 50% to 25% as Anthropic gains ground. According to Menlo Ventures’ mid-2025 analysis, Anthropic now commands 32% of enterprise LLM utilization while OpenAI has fallen to 25%.
The Market Share Reversal
Metric
OpenAI
Anthropic
Enterprise market share (2023)
50%
12%
Enterprise market share (2025)
25%
32%
Coding market share
21%
42%
The Revenue Efficiency Gap
Anthropic: ~$211 per monthly user
OpenAI: ~$25 per weekly user
Difference: 8x higher monetization efficiency for Anthropic
Anthropic’s clarity: “We’re an enterprise AI company”โone sentence that clarifies everything. Every product decision, every hire, every partnership flows from that single strategic choice.
OpenAI’s sprawl: The advertising push signals “consumer company” to enterprise buyers. The multi-product expansion dilutes engineering focus. The safety narrativeโonce a differentiatorโnow belongs more credibly to Anthropic.
What is OpenAI vs Anthropic: Enterprise Market Share Flips from 50% to 25%?
OpenAI's enterprise market share has declined from 50% to 25% as Anthropic gains ground. According to Menlo Ventures' mid-2025 analysis, Anthropic now commands 32% of enterprise LLM utilization while OpenAI has fallen to 25%.
Anthropic's clarity: "We're an enterprise AI company"โone sentence that clarifies everything. Every product decision, every hire, every partnership flows from that single strategic choice.
What is the path to profitability?
Read the full analysis: OpenAI's Hardest Business Model Pivot Yet
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
