ThreadlineTimeline
All timelines

Recorded event

Recorded event

Google introduces experimental Gemini 2.5 Pro

Google introduced Gemini 2.5 with an experimental Pro model available through Google AI Studio and Gemini Advanced.

Read context

Experimental availability is a different milestone from a later stable release. The original launch post identifies which version was available.

Sources

Read the evidence behind this timeline.

Source descriptions are written by Threadline

Revision 1 / Reviewed 9/21/2026

Connected timelines

AI competition: reasoning models and new releases