The search giant revealed upgraded versions of Gemini Flash and Gemini Pro, Google’s fastest and most capable models, respectively. Hassabis said that Gemini Pro outscores other models on LMArena, a widely used benchmark for measuring the abilities of AI models. At I/O, Google revealed Deep Think, a more advanced kind of simulated reasoning for the Pro model. Deep Think uses more compute time and several undisclosed innovations to improve upon this trick, says Tulsee Doshi, product lead for the Gemini models. Mariner will be offered as a “research preview” through a new subscription plan called Google AI Ultra costing a hefty $249.99 per month.