The latest Data from SimilarWeb shows how Gemini usage is soaring as we predicted. While OpenAI captured the early majority, Google has effectively mobilised its ecosystem to capture the late majority. We still predict Gemini will beat OpenAI before the end of 2026.

• Market Share Shift: Gemini now holds 21.5% of the global AI chatbot market, a sharp rise from just ~5% twelve months ago.

• Traffic Growth: Gemini visits increased by 49% in the final 12 weeks of 2025 alone.

• Competitor Analysis: ChatGPT’s market dominance has contracted from 86% to 64.5%.

When you look at Mobile US daily active users (heavy users) the data here from Apptopia the true picture of a changing market with significant growth for Grok too. Copilot still languishing despite their huge integrated workflow advantage in the corporate world.

Why is this happening?

The data suggests a migration from novelty to utility. Users are no longer just "chatting"; they are integrating AI into their daily infrastructure. Gemini’s growth correlates directly with its deep integration into Android and Workspace, reducing the barrier to entry for the average user.

Furthermore, engagement metrics show that Gemini users are spending more time per session (over 7 minutes) compared to competitors, indicating complex task execution rather than simple queries.