By Frank Ulom
NEW YORK (CONVERSEER) – Google is reportedly preparing to unveil its most advanced artificial intelligence model yet — Gemini 3 Pro AI — this November, with a staggering 1 million tokens of context, equivalent to processing up to 750,000 English words in a single session.
According to a report by ufukozen on Wednesday, a preview version of the model, labelled “gemini-3-pro-preview-11-2025”, has been discovered on Google’s enterprise AI platform, Vertex AI. The listing suggests the company plans to release the preview version to select enterprise clients this month, with a wider public rollout expected in December 2025.
The Gemini series represents Google’s flagship line of multimodal AI models designed to seamlessly handle text, images, audio, video, and code. Gemini 3 Pro is expected to build upon the success of previous versions by significantly expanding contextual understanding and improving performance across diverse data types.
One of the most notable advancements is its rumoured 1 million-token context window — a major leap from existing models. This would allow the AI to process entire books, extensive legal documents, or vast codebases in a single pass while maintaining coherence and precision. Analysts describe this capability as a “game changer” that could redefine long-form data analysis and interactive AI applications.
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To put it in perspective, a context window represents the amount of information an AI can retain and process during a single task. A 1 million-token context is equivalent to approximately a 300-page book, enabling the model to analyse lengthy documents without losing earlier details in the conversation.

In addition to enhanced textual processing, Gemini 3 Pro is expected to deliver major upgrades in multimodal reasoning — integrating improved image and video analysis, more accurate speech recognition and generation, and deeper cross-modal understanding. These features could enable smoother connections between different data types, making the model more versatile in real-world applications such as research, education, media, and software development.
Alongside Gemini 3 Pro, Google may also release Nano Banana 2, a new image generation model that is speculated to complement Gemini’s capabilities. Industry observers believe the combination could advance text-to-image and image-to-text interactions, reinforcing Google’s broader ambition to create a comprehensive, interconnected AI ecosystem.
Though Google has not officially confirmed the launch date, the discovery of the model’s tag within Vertex AI indicates that an announcement may be imminent, positioning Gemini 3 Pro as a direct rival to other leading models in the fast-evolving AI landscape.
