Anthropic’s customer lead grows to 40% by Q4 2026

Market overview

Anthropic’s share of business customers will expand to 40% by December 2026, extending its lead over OpenAI. This growth will be driven by continued enterprise adoption of Claude models and further integrations with major cloud providers. OpenAI’s share is projected to remain flat or decline slightly.

adoption prediction market

Implied probability (Yes)

70%

Source: user-generated

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