Anthropic's AI was the most popular among business users, surpassing OpenAI

Menlo Ventures, a research firm, has released a new report (via TechCrunch) that ranks the most popular AI models for businesses. According to the data, Anthropic’s AI models have become the most used among enterprises.

According to the report, Anthropic has a 32% share of the large-scale language model market among enterprise users, while OpenAI is in second place with 25%. For comparison, in 2023, OpenAI had 50% of this segment, while Anthropic had only 12%.

Anthropic has also seen significant growth in the programming space, with the company now controlling 42% of the enterprise coding tools market, double OpenAI's share (21%). Analysts attribute Anthropic's rapid growth to the release of Claude 3.5 Sonnet in June 2024, and the launch of Claude 3.7 Sonnet in February 2025.

The report also notes that the vast majority of enterprises prefer closed-source models, both from Anthropic and OpenAI. Only 13% of daily tasks will be performed using open-source models by mid-2025, down from 19% at the beginning of the year. Meta continues to dominate this segment.

At the same time, OpenAI maintains its lead among regular users — the company recently reported that ChatGPT users send over 2.5 billion requests daily around the world.