Google Releases Gemini 3.1 Pro Deep Think Mode

Google announced Gemini 3.1 Pro and a Deep Think V2 runtime configuration today, touting top benchmark results including 77.1% on ARC-AGI-2 and 84.6% for Deep Think V2. The company says the suite improves reasoning, coding and multimodal tasks and is rolling 3.1 Pro across consumer and developer products, while external observers flag limited safety disclosures and incomplete test details.