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Tom’s Guide
Tom’s Guide
Technology
Amanda Caswell

Elon Musk’s Grok 4.1 vs Anthropic’s Claude 4.5 Sonnet — here’s the AI model that’s actually smarter

Grok vs Claude logo on a laptop.

Grok and Claude are two of the most popular chatbots, each with unique strengths and capabilities. Despite being among the most controversial of all chatbots, Grok 4.1 is at the top of the LMArena leaderboard (just behind Gemini 3.0) for performance. Similarly, Claude 4.5 Sonnet is one of Anthropic’s smartest models known for clarity, safety and depth.

How do these two compare? I just had to know, so I put them through nine rounds using a structured, multi-category test covering logic, ethics, empathy, technical knowledge, creativity and more.

Each AI faced the same prompts. Some were fun. Some were tough. Some were meant to trip them up. And after grading each round, a clear winner emerged.

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