Anthropic overtakes OpenAI in enterprise AI adoption with 32% market share

Published: July 31, 2025 | 1:32 PM PDT

Key Findings

• Market Leadership: Anthropic now holds 32% of the enterprise large language model (LLM) market share by usage, overtaking OpenAI's 25%, according to a Menlo Ventures report.
• Historical Shift: This marks a dramatic reversal from 2023, when OpenAI dominated with 50% share while Anthropic trailed at 12%.
• Coding Dominance: Anthropic's lead is even more pronounced in coding applications, where it commands 42% of enterprise usage—double OpenAI's 21%.

Driving Factors

• Model Releases: Anthropic's growth was catalyzed by the June 2024 launch of Claude 3.5 Sonnet, with further acceleration from Claude 3.7 Sonnet in February 2025.
• Enterprise Preferences: Over half of enterprises exclusively use closed models (like Anthropic's and OpenAI's), while open-source adoption dropped to 13% of daily workloads (down from 19% in early 2025).

Competitive Landscape

• OpenAI's Strength: Despite losing enterprise ground, OpenAI remains a consumer favorite, processing 2.5 billion daily prompts for ChatGPT.
• Google's Growth: Google has seen steady enterprise adoption increases, though specifics weren't disclosed.
• Open Source: Meta continues to lead the open-source LLM segment.

Industry Implications

The shift underscores enterprises' prioritization of accuracy and specialized capabilities, particularly in coding—a sector where Anthropic's models have gained developer trust. Meanwhile, OpenAI's consumer-facing tools maintain mass appeal, highlighting divergent market demands.

"Anthropic's rise reflects enterprises valuing precision over scale," the report notes, suggesting the LLM market may continue fragmenting by use case.