Model Comparison

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

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

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

Gemini 1.5 Flash (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 Flash outperforms in 1 benchmarks (MATH), while Grok-2 mini is better at 5 benchmarks (HumanEval, MathVista, MMLU, MMLU-Pro, MMMU). Grok-2 mini shows notably better performance in the majority of benchmarks.

Choose Gemini 1.5 Flash if…

  • you want predictable pricing at $0.15/M input and $0.60/M output

Choose Grok-2 mini if…

  • you want the strongest raw capability — it leads on 6 of 7 shared benchmarks
  • you want the most recent training data — it shipped Aug 2024
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

Gemini 1.5 Flash outperforms in 1 benchmarks (MATH), while Grok-2 mini is better at 5 benchmarks (HumanEval, MathVista, MMLU, MMLU-Pro, MMMU).

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

Sat Jun 13 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Gemini 1.5 Flash specifies input context (1,048,576 tokens). Only Gemini 1.5 Flash specifies output context (8,192 tokens).

Google
Gemini 1.5 Flash
Input1,048,576 tokens
Output8,192 tokens
xAI
Grok-2 mini
Input- tokens
Output- tokens
Sat Jun 13 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

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

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

Gemini 1.5 Flash

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 Flash

Proprietary

Closed source

Grok-2 mini

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 1.5 Flash 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 Flash.

Gemini 1.5 Flash

May 1, 2024

2.1 years ago

Grok-2 mini

Aug 13, 2024

1.8 years ago

3mo newer

Knowledge Cutoff

When training data ends

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

Gemini 1.5 Flash

Nov 2023

Grok-2 mini

—

Outputs Comparison

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Key Takeaways

Google
Larger context window (1,048,576 tokens)
Higher MATH score (77.9% vs 73.0%)
xAI
Higher HumanEval score (85.7% vs 74.3%)
Higher MathVista score (68.1% vs 65.8%)
Higher MMLU score (86.2% vs 78.9%)
Higher MMLU-Pro score (72.0% vs 67.3%)
Higher MMMU score (63.2% vs 62.3%)
GoogleGemini 1.5 Flash
xAIGrok-2 mini
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 1.5 Flash
xAI
Grok-2 mini

FAQ

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

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

Grok-2 mini shows notably better performance in the majority of benchmarks. Gemini 1.5 Flash 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 Flash compare to Grok-2 mini in benchmarks?

Gemini 1.5 Flash scores XSTest: 97.0%, FLEURS: 90.4%, HellaSwag: 86.5%, GSM8k: 86.2%, BIG-Bench Hard: 85.5%. 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 Flash and Grok-2 mini?

Gemini 1.5 Flash supports 1.0M 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 Flash and Grok-2 mini?

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

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