Google’s beefed-up reasoning model, Gemini 2.5 Deep Think, is built to tackle advanced math, coding, and big-picture reasoning, and it is now live for AI Ultra subscribers. Deep Think supposedly works like OpenAI’s top models, piecing together smart solutions on the fly.

Google DeepMind, Alphabet Inc.’s artificial intelligence research arm, today announced the rollout of Gemini 2.5 Deep Think, a new creative problem-solving AI model. The company stated the model is capable of addressing complex problems by considering multiple ideas simultaneously and choosing the best answer.