😸 Claude is now the #1 business AI
The Neuron · Eric Gerard Ruiz · 2026-05-14
The Neuron newsletter reports that Anthropic's Claude surpassed OpenAI in U.S. business adoption for the first time, reaching 34.4% market share versus OpenAI's 32.3% in Ramp's May 2026 AI Index, driven primarily by Claude Code's enterprise growth.
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Topics: ai-market-shareenterprise-aianthropicopenaiclaude-code
Claims
- Ramp's May 2026 AI Index shows Anthropic at 34.4% U.S. business adoption, surpassing OpenAI at 32.3% for the first time, based on actual corporate credit card spending data.
- Claude Code reached $2.5 billion in annualized revenue by February 2026 and was the primary driver of Anthropic's reversal from 8% business adoption in May 2025.
- Anthropic's annualized revenue reached $30 billion by April 2026, surpassing OpenAI's approximately $24 billion.
- OpenAI responded by launching a $4 billion Deployment Company with 19 private equity and consulting partners to embed AI engineers inside enterprises and accelerate Codex adoption.
- Enterprise AI contracts are structurally stickier than consumer products because switching requires procurement cycles rather than simply deleting an app.
Key quotes
Ramp's May 2026 AI Index shows Anthropic at 34.4% of business adoption, crossing OpenAI (now at 32.3%) for the first time ever.
The engine behind the reversal: Claude Code, Anthropic's autonomous coding tool, which reached $2.5B in annualized revenue by February 2026 alone.
Enterprise contracts are stickier than consumer downloads. They expand over time, renew annually, and get embedded into company infrastructure. When a company approves Claude as a budget line item, switching requires a procurement cycle, not just deleting an app.