ChatGPT loses majority for the first time as Gemini and Claude surge

ChatGPT went from 76.5% market share in February 2025 to 46.4% in June 2026. It is the first time since the product launched in November 2022 that OpenAI's tool falls below 50%. Meanwhile, Gemini reached 27.7% and Claude hit 10.3%.

Numbers vary by methodology — other sources show ChatGPT at 54.7% of global web visits and Gemini at 27.4% — but the trend is consensual: the market is consolidating around at least three relevant players.

Why Gemini grew so fast

The explanation is not just model quality. Gemini is embedded in Android as the replacement for Google Assistant — the world's most used operating system. That is distribution, not performance. When the product is on the home screen of billions of phones before the user even makes a choice, growth is structural, not organic.

Why Claude is winning in enterprise

Claude grew 306% in web visits in a single quarter (from 203M in January to 824M in April 2026) — off a smaller base but at an unprecedented pace. More importantly: it wins roughly 70% of head-to-head enterprise deals against OpenAI.

The partial catalyst was OpenAI's Defense Department deal in February 2026. A segment of corporate users who prioritize privacy and transparency read the move as a warning signal and migrated to Claude.

What this changes for AI buyers

The market has moved from de facto monopoly to real oligopoly. When three players split the market with significant shares, buyers get more bargaining power. API pricing, support quality and enterprise contract terms all come under competitive pressure.

For any company still using only ChatGPT because "it works," now is a good time to review. Technical parity has risen — and the market is voting with its behavior.

10Dobro's position

We have never run a single model. Our 26 systems use Claude as the primary backbone with Gemini and open models in specific layers. Market fragmentation confirms the hybrid squad thesis: there is no "best model" — there is best model for each task and cost-benefit.