Gemini 3.1 Pro

Why It Mattered

As the first major point release in the Gemini 3 series that launched in late 2025, Gemini 3.1 Pro sharpened Google's position in complex reasoning, long-horizon agentic tasks, and native multimodal code generation. It anchored a year of rapid Gemini iteration that continued through the 3.5 and 3.6 families, as Google raced OpenAI and Anthropic on frontier capability while embedding Gemini deeper into Search, Workspace, and Android.

Who Built It

Google DeepMind

Applications

• Multimodal Reasoning
• Coding
• Agentic Workflows