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Gemini 3.1 Pro Benchmark Performance Analysis Across Multiple AI Evaluation Tasks

By

PunchTornado

3mo ago· 5 min readenInsight

Summary

The article presents benchmark performance data for Gemini 3.1 Pro, comparing it against other leading AI models including Gemini 3 Pro, Sonnet 4.6, Opus 4.6, GPT-5.2, and GPT-5.3-Codex across various evaluation tasks. The benchmarks cover academic reasoning (Humanity's Last Exam), abstract reasoning (ARC-AGI-2), scientific knowledge (GPQA Diamond), and agentic terminal coding (Terminal-Bench 2.0). Gemini 3.1 Pro shows strong performance across multiple domains, with particularly notable results in scientific knowledge (94.3%) and terminal coding (68.5%). The model is described as the next iteration in the Gemini 3 series, representing highly capable, natively multimodal reasoning models.

Key quotes

· 4 pulled
Gemini 3.1 Pro is the next iteration in the Gemini 3 series of models, a suite of highly capable, natively multimodal reasoning models.
Humanity's Last Exam Academic reasoning (full set, text + MM) No tools 44.4%
GPQA Diamond Scientific knowledge No tools 94.3%
Terminal-Bench 2.0 Agentic terminal coding Terminus-2 harness 68.5%
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Gemini 3.1 Pro is the next iteration in the Gemini 3 series of models, a suite of highly capable, natively multimodal reasoning models.

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