Anthropic Retains Business AI Lead, But Openai's Top Model Wins July Spend in China

Anthropic CEO Dario Amodei. Bloomberg/. Anthropic is still leading OpenAI in business adoption, per Ramp's July AI Index.

OpenAI's GPT-5.6 Sol was more popular than Anthropic's Fable 5 AI model in July, in Ramp's data. The rivals have poured effort into winning businesses over to AI agents, which drive spending. Although OpenAI still straggles behind Anthropic in a closely watched measure of AI adoption among businesses, there's a spark of hope for CEO Sam Altman's company.

OpenAI has an advantage over its rival's priciest and most advanced model, according to new data from Ramp's AI Index. The data shows that Anthropic's Fable 5 model generated 75% as much spend as OpenAI's GPT-5.6 Sol model did in July, indicating that Anthropic's top model was less popular among businesses. As Anthropic retains its lead in business adoption, weaker demand for top-end AI could ring alarm bells about customers' spending restraint. Ramp, a financial technology firm, tracks data from bills and expenses for more than 70,000 US business customers to analyze spending on AI tools and products.