Google I/O 2026 (May 19) Previews Agentic Coding as Keynote Focus, Firebase Agent-Native Platform, Gemini Nano 4 On-Device with 3x Speed Gains

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Google I/O 2026 kicks off May 19 with agentic coding as the first developer keynote topic at 1:30 PM PT — AI tools that handle routine development tasks while engineers focus on architecture. Firebase is evolving into an 'agent-native platform' with AI Studio and Antigravity integrations for vibe-coding full-stack apps. Gemini Nano 4 will ship in two variants (Fast and Full) based on Gemma 4, promising 3x speed over prior Nano models for on-device AI across Android.