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Title: Google introduces the Deep Think reasoning model for Gemini 2.5 Pro
and a better 2.5 Flash

Date: Tue, 20 May 2025 17:45:31 +0000
Link: https://www.engadget.com/ai/google-introduces...

Google has started testing a reasoning model called Deep Think for Gemini 2.5
Pro, the company has revealed at its I/O developer conference. According to
DeepMind CEO Demis Hassabis, Gemini's Deep Think uses "the latest cutting-
edge research" that gives the model the capability to consider multiple
hypotheses before responding to queries. Google says it got an "impressive
score" when evaluated using questions from the 2025 United States of America
Mathematical Olympiad competition. However, Google wants to take more time to
conduct safety evaluations and get further input from safety experts before
releasing it widely. That's why it's making Deep Think initially available to
trusted testers via the Gemini API first in order to get their feedback
first.

The company has also introduced a better Gemini 2.5 Flash model, which is
optimized for speed and efficiency. It's now more efficient than before, uses
fewer tokens and has scored higher in benchmarks for reasoning,
multimodality, code and long context than its predecessor. It will be
generally available in early June. For now, the improved Gemini 2.5 Flash is
available as a preview via Google AI Studio for developers, via Vertex AI for
enterprise customers and via the Gemini app for other users.

While most of the efficiency gains covered on the I/O stage were focused on
2.5 Flash, Google did announce that it's bringing the 2.5 Flash concept of
"Thinking Budgets" to its more advanced 2.5 Pro model. This feature will let
you balance tokens spent vs. accuracy and speed of output.

Separately, Google is bringing Project Mariner into the Gemini API and Vertex
AI, as well. Project Mariner is Google's Gemini-powered AI agents that can
navigate pages on the web browser to complete tasks for users. The company
will roll the agents out more broadly this summer so that developers can
experiment with them. In addition, the company is releasing new previews for
text-to-speech on both 2.5 Pro and 2.5 Flash models via the Gemini API, with
support for two voices in 24 languages.

This article originally appeared on Engadget at
https://www.engadget.com/ai/google-introduces...
for-gemini-25-pro-and-a-better-25-flash-174531020.html?src=rss

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