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Head-to-head

Gemini 3.1 Pro vs GPT-6.1 Sol

As of October 25, 2026, GPT-6.1 Sol leads Gemini 3.1 Pro on the Analyzer Index, 93.4 to 87.0.

Normalized scores are min-maxed per benchmark across all models we track (0–100). Open the interactive compare view to add benchmarks to the radar chart or pull in more models.

Gemini 3.1 Pro
Google
GPT-6.1 Sol
OpenAI
At a glanceGemini 3.1 ProGPT-6.1 Sol
Analyzer Index87.0 (9/13)93.4 (5/13)
Blended price$2.25/M$2.00/M
Cheapest hostmaker's APImaker's API
Context2.0M1.1M
Output speed188 tok/s50 tok/s
Time to first token87.47 s1.77 s
BenchmarkGemini 3.1 ProGPT-6.1 Sol
Chatbot Arena Elo

Arena

SWE-bench Verified

SWE-bench

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MMMU-Pro

MMMU-Pro

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Output Speed

Speed

Time to First Token

TTFT

FrontierMath Tiers 1-3

FrontierMath

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SimpleQA Verified

SimpleQA

OTIS Mock AIME 2024-2025

OTIS AIME

Humanity's Last Exam

HLE

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ARC-AGI 2

ARC-AGI 2

Terminal-Bench 2

TermBench 2

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Frontier Composite

Frontier

Output Stability

Stability

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Format Adherence

Format

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Recovery Rate

Recovery

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API Success Rate

API OK

Safety Handling

Safety

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Methodology matches the main AI Model Analyzer About page.