Model Comparison

Gemini 1.5 Pro vs Grok-2 miniWhich is better in 2026?

Gemini 1.5 Pro has a slight edge in benchmark performance.

Verdict: Gemini 1.5 Pro vs Grok-2 mini — which is better?

Gemini 1.5 Pro (by Google) 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.

Gemini 1.5 Pro outperforms in 4 benchmarks (GPQA, MATH, MMLU-Pro, MMMU), while Grok-2 mini is better at 2 benchmarks (HumanEval, MMLU). Gemini 1.5 Pro has a slight edge in benchmark performance.

Choose Gemini 1.5 Pro if…

  • you want the strongest raw capability — it leads on 4 of 7 shared benchmarks

Choose Grok-2 mini if…

  • you want the most recent training data — it shipped Aug 2024

Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

Gemini 1.5 Pro outperforms in 4 benchmarks (GPQA, MATH, MMLU-Pro, MMMU), while Grok-2 mini is better at 2 benchmarks (HumanEval, MMLU).

Gemini 1.5 Pro has a slight edge in benchmark performance.

Sat Jul 18 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Gemini 1.5 Pro specifies input context (2,097,152 tokens). Only Gemini 1.5 Pro specifies output context (8,192 tokens).

Google
Gemini 1.5 Pro
Input2,097,152 tokens
Output8,192 tokens
xAI
Grok-2 mini
Input- tokens
Output- tokens
Sat Jul 18 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 1.5 Pro and Grok-2 mini support multimodal inputs.

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

Gemini 1.5 Pro

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.

Gemini 1.5 Pro

Proprietary

Closed source

Grok-2 mini

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 1.5 Pro was released on 2024-05-01, while Grok-2 mini was released on 2024-08-13.

Grok-2 mini is 3 months newer than Gemini 1.5 Pro.

Gemini 1.5 Pro

May 1, 2024

2.2 years ago

Grok-2 mini

Aug 13, 2024

1.9 years ago

3mo newer

Knowledge Cutoff

When training data ends

Gemini 1.5 Pro has a documented knowledge cutoff of 2023-11-01, while Grok-2 mini's cutoff date is not specified.

We can confirm Gemini 1.5 Pro's training data extends to 2023-11-01, but cannot make a direct comparison without Grok-2 mini's cutoff date.

Gemini 1.5 Pro

Nov 2023

Grok-2 mini

—

Outputs Comparison

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Key Takeaways

Google
Larger context window (2,097,152 tokens)
Higher GPQA score (59.1% vs 51.0%)
Higher MATH score (86.5% vs 73.0%)
Higher MMLU-Pro score (75.8% vs 72.0%)
Higher MMMU score (65.9% vs 63.2%)
xAI
Higher HumanEval score (85.7% vs 84.1%)
Higher MMLU score (86.2% vs 85.9%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemini 1.5 Pro and Grok-2 mini side-by-side, then vote on the output you prefer.

Gemini 1.5 Pro
✓ Preferred
Grok-2 mini
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 1.5 Pro
xAI
Grok-2 mini

FAQ

Common questions about Gemini 1.5 Pro vs Grok-2 mini.

Which is better, Gemini 1.5 Pro or Grok-2 mini?

Gemini 1.5 Pro has a slight edge in benchmark performance. Gemini 1.5 Pro is made by Google 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 Gemini 1.5 Pro compare to Grok-2 mini in benchmarks?

Gemini 1.5 Pro scores XSTest: 98.8%, FLEURS: 93.3%, HellaSwag: 93.3%, GSM8k: 90.8%, BIG-Bench Hard: 89.2%. 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 Gemini 1.5 Pro and Grok-2 mini?

Gemini 1.5 Pro supports 2.1M 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 Gemini 1.5 Pro and Grok-2 mini?

Gemini 1.5 Pro is developed by Google and Grok-2 mini is developed by xAI.

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