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Models & Technology

Google’s Latest AI Model Gemini 3.5 Pro Briefly Appears on the Arena, Delayed for Months

According to reports from multiple users, Google’s long-delayed Gemini 3.5 Pro model briefly appeared today on the AI blind-testing platform Arena, but was removed after only 30 minutes. The model was originally scheduled to launch in June but has been postponed multiple times. #GoogleAI# Its brief appearance this time suggests that testing may have entered its final stage.

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Google’s Latest AI Model Gemini 3.5 Pro Briefly Appears on the Arena, Delayed for Months

Multiple users on the X platform reported that Google’s latest Gemini 3.5 Pro model briefly appeared today on the Arena platform (formerly LMArena).

Google’s latest AI model Gemini 3.5 Pro briefly appears on the Arena, delayed for months

A screenshot posted by user Harshith（@HarshithLucky3）shows that Gemini 3.5 Pro was removed just 30 minutes after appearing online, and that the user only completed one SVG test. Around the same time, other users also posted similar screenshots or descriptions.

Arena is an AI model evaluation platform based on blind-test votes from real users. It ranks models on tasks involving text, code, vision, and more through methods such as Elo scoring.

Previously, Google officially released the Gemini 3.5 series on May 19, 2026, debuting the 3.5 Flash model. Google said that 3.5 Pro was already being used internally and planned to launch it the following month, but it was subsequently delayed multiple times. Google only stated that it was testing the model with partners.