According to VentureBeat, Anthropic's Claude has overtaken OpenAI's ChatGPT in U.S. business AI adoption for the first time since ChatGPT's 2022 launch. Data from the May 2026 Ramp AI Index, which tracks spending and invoice records across more than 50,000 U.S. companies, shows Claude at 34.4% adoption versus ChatGPT's 32.3%. VentureBeat notes Anthropic quadrupled its share over the past year while OpenAI's grew by just 0.3 percentage points. The report attributes Claude's rise to its reliability, long-context handling, and instruction-following behavior in production workflows. Claude Code, Anthropic's agentic coding tool, is also cited as a major driver, capturing an estimated 42–54% of enterprise coding spend.