Model Comparison

GPT-4 vs Grok-2 miniWhich is better in 2026?

Grok-2 mini shows notably better performance in the majority of benchmarks.

Verdict: GPT-4 vs Grok-2 mini — which is better?

GPT-4 (by OpenAI) and Grok-2 mini (by xAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

GPT-4 outperforms in 1 benchmarks (MMLU), while Grok-2 mini is better at 3 benchmarks (GPQA, HumanEval, MATH). Grok-2 mini shows notably better performance in the majority of benchmarks.

Choose GPT-4 if…

  • you want predictable pricing at $30.00/M input and $60.00/M output

Choose Grok-2 mini if…

  • you want the strongest raw capability — it leads on 3 of 4 shared benchmarks
  • you want the most recent training data — it shipped Aug 2024

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

GPT-4 outperforms in 1 benchmarks (MMLU), while Grok-2 mini is better at 3 benchmarks (GPQA, HumanEval, MATH).

Grok-2 mini shows notably better performance in the majority of benchmarks.

Sun Jul 19 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-4 specifies input context (32,768 tokens). Only GPT-4 specifies output context (32,768 tokens).

OpenAI
GPT-4
Input32,768 tokens
Output32,768 tokens
xAI
Grok-2 mini
Input- tokens
Output- tokens
Sun Jul 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-4 and Grok-2 mini support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GPT-4

Text
Images
Audio
Video

Grok-2 mini

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

GPT-4

Proprietary

Closed source

Grok-2 mini

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4 was released on 2023-06-13, while Grok-2 mini was released on 2024-08-13.

Grok-2 mini is 14 months newer than GPT-4.

GPT-4

Jun 13, 2023

3.1 years ago

Grok-2 mini

Aug 13, 2024

1.9 years ago

1.2yr newer

Knowledge Cutoff

When training data ends

GPT-4 has a documented knowledge cutoff of 2022-12-31, while Grok-2 mini's cutoff date is not specified.

We can confirm GPT-4's training data extends to 2022-12-31, but cannot make a direct comparison without Grok-2 mini's cutoff date.

GPT-4

Dec 2022

Grok-2 mini

—

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (32,768 tokens)
Higher MMLU score (86.4% vs 86.2%)
xAI
Higher GPQA score (51.0% vs 35.7%)
Higher HumanEval score (85.7% vs 67.0%)
Higher MATH score (73.0% vs 42.0%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against GPT-4 and Grok-2 mini side-by-side, then vote on the output you prefer.

GPT-4
✓ Preferred
Grok-2 mini
Open in Playground
AI Model Comparison Table
Feature
OpenAI
GPT-4
xAI
Grok-2 mini

FAQ

Common questions about GPT-4 vs Grok-2 mini.

Which is better, GPT-4 or Grok-2 mini?

Grok-2 mini shows notably better performance in the majority of benchmarks. GPT-4 is made by OpenAI and Grok-2 mini is made by xAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT-4 compare to Grok-2 mini in benchmarks?

GPT-4 scores AI2 Reasoning Challenge (ARC): 96.3%, HellaSwag: 95.3%, Uniform Bar Exam: 90.0%, SAT Math: 89.0%, LSAT: 88.0%. Grok-2 mini scores DocVQA: 93.2%, MMLU: 86.2%, HumanEval: 85.7%, MATH: 73.0%, MMLU-Pro: 72.0%.

What are the context window sizes for GPT-4 and Grok-2 mini?

GPT-4 supports 33K tokens and Grok-2 mini supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

Who makes GPT-4 and Grok-2 mini?

GPT-4 is developed by OpenAI and Grok-2 mini is developed by xAI.

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