Google is upgrading its most capable Gemini AI models.
On Tuesday at Google I/O 2025, the company announced Deep Think, an “enhanced” reasoning mode for its flagship Gemini 2.5 Pro model. Deep Think allows the model to consider multiple answers to questions before responding, boosting its performance on certain benchmarks.
“[Deep Think] pushes model performance to its limits,” said Demis Hassabis, head of Google DeepMind, Google’s AI R&D org, during a press briefing. “It uses our latest cutting-edge research in thinking and reasoning, including parallel techniques.”
Google was vague on the inner workings of Deep Think, but the technology could be similar to OpenAI’s o1-pro and upcoming o3-pro models, which likely use an engine to search for and synthesize the best solution to a given problem.
Google says that Deep Think enabled Gemini 2.5 Pro to top LiveCodeBench, a challenging coding evaluation. Gemini 2.5 Pro Deep Think also beat OpenAI’s o3 on MMMU, a test for skills like perception and reasoning.
