xAI Grok 2 vs OpenAI o3-mini

Looking for an honest xAI Grok 2 vs OpenAI o3-mini comparison in 2026? We scored both ai language models on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. Both products score nearly identically (63/100 vs 66/100) — this is a genuine toss-up that hinges on which specs matter most for your use case. The widest gap is in camera quality, where the OpenAI o3-mini pulls noticeably ahead.

BERABERLIK

xAI

Grok 2

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AI Matrix

xAI Grok 2 and OpenAI o3-mini are closely matched ai language models devices with nearly identical overall scores (63 vs 66). The best choice depends on which specific features matter most to you.

Reviewed by VersusMatrix Editorial Team|Our methodology

Özellik Karşılaştırması

Puan Dağılımı

xAI Grok 2OpenAI o3-mini

Benchmark (MMLU)30% weight

Beraberlik

Cost Efficiency20% weight

Beraberlik

Arena ELO20% weight

Beraberlik

Context Window10% weight

OpenAI o3-mini Kazanan

Speed (tok/s)10% weight

xAI Grok 2 Kazanan

Coding (HumanEval)10% weight

OpenAI o3-mini Kazanan

Scores are relative within the ai language modelscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.

xAI Grok 2

✓ Pros

●Better display score

✗ Cons

●Weaker battery score
●Lower camera score

OpenAI o3-mini

✓ Pros

●Better battery score
●Better camera score
●Better design score

✗ Cons

●Lower display score

💰 Token Pricing (per 1M tokens)

Lower cost = better value. Free = open-source self-hosted.

Metric	Grok 2	OpenAI o3-mini
Input (Prompt)	$2.00/1M	✓$1.10/1M
Output (Completion)	$10.00/1M	✓$4.40/1M
Open Source	Proprietary	Proprietary

⚡ Context Window & Speed

Context Window (tokens)

Grok 2131K

OpenAI o3-mini200K

Metric	Grok 2	OpenAI o3-mini
Max Output	4,096 tok	✓100,000 tok
Speed	✓100 tok/s	80 tok/s
Time to First Token	✓600ms	2.0s
Languages	25+	✓50+

📊 Benchmark Scores

Higher is better. Industry-standard AI evaluation benchmarks.

Grok 2

OpenAI o3-mini

MMLU (Knowledge)

87.5|86.9

Grok 2

OpenAI o3-mini

HumanEval (Coding)

88.4|92.9

Grok 2

OpenAI o3-mini

MATH (Mathematics)

76.1|87.3

Grok 2

OpenAI o3-mini

GPQA (Expert Q&A)

56.0|76.7

Grok 2

OpenAI o3-mini

Chatbot Arena ELO

1290.0|1305.0

Grok 2

OpenAI o3-mini

🔧 Capabilities

Feature	Grok 2	OpenAI o3-mini
Reasoning / Chain-of-Thought	✕	✓
Vision (Image Input)	✓	✕
Audio Input	✕	✕
Video Input	✕	✕
Image/Audio Output	✕	✕
Function Calling / Tools	✓	✓
JSON Mode	✓	✓
Real-time Web Access	✓	✕
Fine-tuning Support	✕	✕
Batch API	✕	✓
Streaming	✓	✓
Open Source	✕	✕

ℹ️ Model Details

Field	Grok 2	OpenAI o3-mini
Provider	xAI	OpenAI
Knowledge Cutoff	real-time	2023-10
Best For	current eventsresearchreal time infogeneral	reasoningcodingmathcost efficiency

Kim Almalı

Buy xAI Grok 2 if…

The xAI Grok 2 is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.

Buy OpenAI o3-mini if…

The OpenAI o3-mini is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.