Gemini 3.1

Gemini 3.1 is a large multimodal artificial intelligence model developed by Google DeepMind, representing a significant iteration of the Gemini series. Announced on February 20, 2026, it is distinguished by its 'Mixture of Experts' (MoE) architecture, which enables more efficient scaling and task-specific processing. A key technical specification is its 10 million token context window for its 'Pro' tier, allowing it to process and reason over extremely long documents, codebases, or video sequences in a single prompt. The model is natively multimodal, processing and generating text, code, audio, and video from inception. Gemini 3.1 matters because its architectural efficiency and massive context length directly address two critical industry challenges: the soaring computational cost of training and running massive models, and the practical need for AI to comprehend lengthy, complex inputs for enterprise and research applications.