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Gemini 2.5 Pro Deep Think Goes GA — Math Olympiad Performance and MCP Integration Explained

At Google I/O 2026, Gemini 2.5 Pro Deep Think mode went generally available. It scored impressively on the 2025 USAMO math competition and added MCP support to connect with the open-source tool ecosystem. Gemini 2.5 Pro now leads both the WebDev Arena and LM Arena leaderboards.