Google has unveiled Gemini 3.1 Pro, an upgraded iteration of its flagship AI model designed to excel at intricate tasks requiring advanced reasoning, marking a significant step forward in the company’s multimodal AI capabilities.
Announced on February 19, 2026, Gemini 3.1 Pro builds on the November 2025 launch of Gemini 3 Pro, emphasizing enhanced core intelligence for scenarios where simple responses fall short, such as synthesizing vast datasets, visualizing complex topics, or strategic planning. The model is rolling out in preview for developers via the Gemini API and Vertex AI, with broader availability to enterprises through Gemini Enterprise and consumers via the Gemini app and NotebookLM.
Google highlighted benchmark gains, with Gemini 3.1 Pro achieving a 77.1% score on ARC-AGI-2, a test of novel logic patterns—more than doubling Gemini 3 Pro’s 31.1% and outperforming rivals like Anthropic’s Opus 4.6 (68.8%) and OpenAI’s GPT-5.2 (52.9%). It also leads in other metrics for advanced coding, long-context multimodal understanding, and algorithmic development.
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“3.1 Pro is designed for tasks where a simple answer isn’t enough, taking advanced reasoning and making it useful for your hardest challenges,” the Gemini team said in its blog post. The model powers recent upgrades like Gemini 3 Deep Think, which debuted last week for enhanced reasoning.
This release follows Gemini 3 Pro in November 2025 and Gemini 3 Flash in December 2025, underscoring Google’s rapid iteration in the AI arms race.
As AI models push boundaries in reasoning and multimodality, Gemini 3.1 Pro’s focus on complex problem-solving could solidify Google’s edge in enterprise and developer tools, but real-world benchmarks and user adoption will be the true test amid fierce competition from OpenAI and Anthropic.
