Gemini 3.1 Pro
Google released Gemini 3.1 Pro in preview, focused on complex reasoning.
Why it matters
Led by a wide margin on reasoning tests such as ARC-AGI-2, and sat near the top of major leaderboards through the first half of 2026.
Built on
Led to
Source: blog.google ↗
Official page not opened for verification; URL taken from citations in multiple reports.