Overview

• The feature is available now to Google AI Ultra subscribers at US$249.99 per month, enabled by a new prompt-bar button in the Gemini 2.5 Pro app on web and mobile.
• Deep Think extends inference time to explore multiple reasoning paths in parallel and uses novel reinforcement learning techniques to refine its problem-solving approach.
• The model now achieves 87.6% on LiveCodeBench, up from 80.4% in May, and records an 84% score on the MMMU multimodal reasoning test.
• In mathematical benchmarks, Deep Think reaches Bronze-level performance on the 2025 International Mathematical Olympiad tasks, while an expert-focused variant used for gold medal-level reasoning is being shared with academics.
• Google plans to offer API versions of Deep Think with and without tool integrations to trusted testers in the coming weeks to explore developer and enterprise use cases.