Google previewed Gemini 3.1 Pro, reporting 77.1% on ARC-AGI-2 — roughly double Gemini 3 Pro's score — and 80.6% on SWE-bench Verified. The preview suggested Google's reasoning gains were still accelerating.

ARC-AGI-2, designed to resist benchmark saturation, had humbled every previous flagship; 3.1 Pro's jump was one of the largest single-generation gains on the test. Google framed it as evidence its Deep Think approach had headroom.

The preview kept Google in the 2026 frontier conversation even as the company prioritized shipping Flash iterations over finalizing the next full Pro launch.