Gemini 2.5 Pro added explicit reasoning to Google's flagship and landed first in AI Studio and the Gemini app for paying users.
The practical draw is Workspace proximity — a model that can reason over the documents and mail already in your Google tenant saves the copy-paste step that kills most rep AI habits.
Google announced Gemini 2.5 Pro on 25 March 2025 as its newest model with thinking built in. It was made available in Google AI Studio and in the Gemini app for Gemini Advanced subscribers.
Google updated the announcement the following day with additional long-context evaluation results. It launched as an experimental preview rather than a general-availability release, and paid Gemini Advanced access was required in the consumer app.
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