Google rolls out Gemini Deep Think AI, a reasoning model that tests multiple ideas in parallel
Google DeepMind is rolling out Gemini 2.5 Deep Think, which, the company says, is its most advanced AI reasoning model, able to answer questions by exploring and considering multiple ideas simultaneously and then using those outputs to choose the best answer.
Subscribers to Google’s $250-per-month Ultra subscription will gain access to Gemini 2.5 Deep Think in the Gemini app starting Friday.
First unveiled in May at Google I/O 2025, Gemini 2.5 Deep Think is Google’s first publicly available multi-agent model. These systems spawn AI multiple agents to tackle a question in parallel, a process that uses significantly more computational resources than a single agent, but tends to result in better answers.
Google used a variation of Gemini 2.5 Deep Think to score a gold medal at this year’s International Math Olympiad (IMO).
Alongside Gemini 2.5 Deep Think, the company says it is releasing the model it used at the IMO to a select group of mathematicians and academics. Google says this AI model “takes hours to reason,” instead of seconds or minutes like most consumer-facing AI models. The company hopes the IMO model will enhance research efforts, and aims to get feedback on how to improve the multi-agent system for academic use cases.
