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Gemini 3.1 Pro vs GPT-4o mini

Google Gemini 3.1 Pro vs OpenAI GPT-4o mini — side-by-side specs.

Google
Gemini 3.1 Pro
OpenAI
GPT-4o mini
Overview
CompanyGoogleOpenAI
Release dateFeb 19 2026Jul 18 2024
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Agentic coding
SWE-Bench Pro
54.2%
Coding
SWE-Bench Verified
80.6%
Agentic terminal coding
Terminal-Bench 2.1
70.3%
Agentic terminal coding
Terminal-Bench 2.0
68.5%
Multi-step tool use
MCP Atlas
78.2%
General tool use
Toolathlon
48.8%
Web browsing
BrowseComp
85.9%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
44.4%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
51.4%
Abstract reasoning
ARC-AGI-2
77.1%
Advanced math
FrontierMath · Tier 1–3
36.9%
Advanced math
FrontierMath · Tier 4
16.7%
Science
GPQA Diamond
94.3%
Agentic computer use
OSWorld-Verified
76.2%
Agentic financial analysis
Finance Agent v2
43%
Knowledge work
GDPval-AA
1314
Knowledge work
GDPval (win/tie rate)
67.3%
Chart reasoning
CharXiv Reasoning
83.3%
Multimodal reasoning
MMMU-Pro
80.5%
Spatial reasoning
Blueprint-Bench 2
26.5%
Long context
MRCR v2 (8-needle) · 128k average
84.9%
Long context
MRCR v2 (8-needle) · 1M pointwise
26.3%
Timeline
Release gapGPT-4o mini shipped 581 days before Gemini 3.1 Pro

Which is better: Gemini 3.1 Pro or GPT-4o mini?

Gemini 3.1 Pro and GPT-4o mini don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-4o mini shipped 581 days before Gemini 3.1 Pro, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — Gemini 3.1 Pro and GPT-4o mini don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Gemini 3.1 Pro released?
Gemini 3.1 Pro was released by Google on Feb 19 2026.
When was GPT-4o mini released?
GPT-4o mini was released by OpenAI on Jul 18 2024.

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