Google Releases Gemini 3.1 Pro Model

Google on Thursday announced Gemini 3.1 Pro, a new large language model described as a step forward in core reasoning, and published benchmark results showing a 77.1% score on ARC-AGI-2 versus 31.1% for Gemini 3 Pro. Google said Gemini 3.1 Pro outperforms several commercial rivals on many cited tests, though some benchmarks favor Anthropic or OpenAI on specific suites. The model is available via Gemini API, Google AI Studio, Vertex AI, and integrated Azure developer tools.