Anthropic Holds 32% Enterprise LLM Share as Open Source Turns Complementary

Frontier models and open-source LLMs are shaping up as complements rather than rivals, forming a shared life cycle. As Anthropic maintains a strong position in the enterprise market with its Claude lineup, increasingly capable open-source models are taking over day-to-day workloads, a division of labor that took hold among enterprises and developers through 2025 into 2026.