Model Comparison

Claude 3.5 Sonnet vs Grok-3 Mini

Grok-3 Mini significantly outperforms across most benchmarks.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude 3.5 Sonnet outperforms in 0 benchmarks, while Grok-3 Mini is better at 1 benchmark (GPQA).

Grok-3 Mini significantly outperforms across most benchmarks.

Thu Apr 30 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Cost data unavailable.

Lowest available price from all providers
Thu Apr 30 2026 • llm-stats.com
Anthropic
Claude 3.5 Sonnet
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
xAI
Grok-3 Mini
Input tokens$0.30
Output tokens$0.50
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Only Grok-3 Mini specifies input context (128,000 tokens). Only Grok-3 Mini specifies output context (8,000 tokens).

Anthropic
Claude 3.5 Sonnet
Input- tokens
Output- tokens
xAI
Grok-3 Mini
Input128,000 tokens
Output8,000 tokens
Thu Apr 30 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3.5 Sonnet and Grok-3 Mini support multimodal inputs.

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

Claude 3.5 Sonnet

Text
Images
Audio
Video

Grok-3 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 3.5 Sonnet

Proprietary

Closed source

Grok-3 Mini

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3.5 Sonnet was released on 2024-06-21, while Grok-3 Mini was released on 2025-02-17.

Grok-3 Mini is 8 months newer than Claude 3.5 Sonnet.

Claude 3.5 Sonnet

Jun 21, 2024

1.9 years ago

Grok-3 Mini

Feb 17, 2025

1.2 years ago

8mo newer

Knowledge Cutoff

When training data ends

Grok-3 Mini has a documented knowledge cutoff of 2024-11-17, while Claude 3.5 Sonnet's cutoff date is not specified.

We can confirm Grok-3 Mini's training data extends to 2024-11-17, but cannot make a direct comparison without Claude 3.5 Sonnet's cutoff date.

Claude 3.5 Sonnet

—

Grok-3 Mini

Nov 2024

Outputs Comparison

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Key Takeaways

Anthropic
xAI
Larger context window (128,000 tokens)
Higher GPQA score (84.0% vs 59.4%)
AnthropicClaude 3.5 Sonnet
xAIGrok-3 Mini
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3.5 Sonnet
xAI
Grok-3 Mini

FAQ

Common questions about Claude 3.5 Sonnet vs Grok-3 Mini

Grok-3 Mini significantly outperforms across most benchmarks. Claude 3.5 Sonnet is made by Anthropic and Grok-3 Mini is made by xAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Claude 3.5 Sonnet scores GSM8k: 96.4%, BIG-Bench Hard: 93.1%, HumanEval: 92.0%, MGSM: 91.6%, MMLU: 90.4%. Grok-3 Mini scores AIME 2024: 95.8%, AIME 2025: 90.8%, GPQA: 84.0%, LiveCodeBench: 80.4%.
Claude 3.5 Sonnet supports an unknown number of tokens and Grok-3 Mini supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Claude 3.5 Sonnet is developed by Anthropic and Grok-3 Mini is developed by xAI.