Google releases Gemini 3.1 Pro: Benchmark performance, how to try it

Google released its latest core reasoning model, Gemini 3.1 Pro, on Thursday. Google says that Gemini 3.1 Pro achieved twice the verified performance of 3 Pro on ARC-AGI-2, a popular benchmark that measures a model's logical reasoning.

Google originally released Gemini 3 and 3 Pro in November, and this new release shows just how fast AI companies are introducing new and updated models. Gemini 3.1 Pro is the new core model powering Gemini and various Google AI tools, such as Gemini 3 Deep Think.