Model Comparison

Claude Sonnet 4 vs Grok-2 miniWhich is better in 2026?

Claude Sonnet 4 significantly outperforms across most benchmarks.

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

Claude Sonnet 4 (by Anthropic) 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.

Claude Sonnet 4 outperforms in 2 benchmarks (GPQA, MMMU), while Grok-2 mini is better at 0 benchmarks. Claude Sonnet 4 significantly outperforms across most benchmarks.

Choose Claude Sonnet 4 if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
  • you want the most recent training data — it shipped May 2025

Choose Grok-2 mini if…

  • you are already invested in the xAI ecosystem
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Claude Sonnet 4 outperforms in 2 benchmarks (GPQA, MMMU), while Grok-2 mini is better at 0 benchmarks.

Claude Sonnet 4 significantly outperforms across most benchmarks.

Sun Jun 07 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude Sonnet 4 specifies input context (200,000 tokens). Only Claude Sonnet 4 specifies output context (64,000 tokens).

Anthropic
Claude Sonnet 4
Input200,000 tokens
Output64,000 tokens
xAI
Grok-2 mini
Input- tokens
Output- tokens
Sun Jun 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Sonnet 4 and Grok-2 mini support multimodal inputs.

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

Claude Sonnet 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.

Claude Sonnet 4

Proprietary

Closed source

Grok-2 mini

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Sonnet 4 was released on 2025-05-22, while Grok-2 mini was released on 2024-08-13.

Claude Sonnet 4 is 9 months newer than Grok-2 mini.

Claude Sonnet 4

May 22, 2025

1.0 years ago

9mo newer
Grok-2 mini

Aug 13, 2024

1.8 years ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Higher GPQA score (75.4% vs 51.0%)
Higher MMMU score (74.4% vs 63.2%)
xAI

No standout differentiators in the data we have for this pair.

AnthropicClaude Sonnet 4
xAIGrok-2 mini
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Sonnet 4
xAI
Grok-2 mini

FAQ

Common questions about Claude Sonnet 4 vs Grok-2 mini.

Which is better, Claude Sonnet 4 or Grok-2 mini?

Claude Sonnet 4 significantly outperforms across most benchmarks. Claude Sonnet 4 is made by Anthropic 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 Claude Sonnet 4 compare to Grok-2 mini in benchmarks?

Claude Sonnet 4 scores MMMLU: 86.5%, TAU-bench Retail: 80.5%, GPQA: 75.4%, MMMU: 74.4%, SWE-Bench Verified: 72.7%. 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 Claude Sonnet 4 and Grok-2 mini?

Claude Sonnet 4 supports 200K 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 Claude Sonnet 4 and Grok-2 mini?

Claude Sonnet 4 is developed by Anthropic and Grok-2 mini is developed by xAI.

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