Claude Sonnet 3.6 (2022-10-22) vs Grok 3 Thinking

Compare Claude Sonnet 3.6 (2022-10-22) by Anthropic against Grok 3 Thinking by xAI, context windows of 200K vs 128K, tested across 14 shared challenges. Updated April 2026.

Which is better, Claude Sonnet 3.6 (2022-10-22) or Grok 3 Thinking?

Claude Sonnet 3.6 (2022-10-22) and Grok 3 Thinking are both competitive models. Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Sonnet 3.6 (2022-10-22) and Grok 3 Thinking

Claude Sonnet 3.6 (2022-10-22) is made by anthropic while Grok 3 Thinking is from xai. Claude Sonnet 3.6 (2022-10-22) has a 200K token context window compared to Grok 3 Thinking's 128K.

Our Verdict
Grok 3 Thinking
Grok 3 Thinking
Claude Sonnet 3.6 (2022-10-22)
Claude Sonnet 3.6 (2022-10-22)Runner-up

No community votes yet. On paper, Grok 3 Thinking has the edge — bigger model tier, newer.

Too close to call
Writing DNA

Style Comparison

Similarity
97%

Grok 3 Thinking uses 11.4x more headings

Claude Sonnet 3.6 (2022-10-22)
Grok 3 Thinking
66%Vocabulary46%
74wSentence Length19w
0.72Hedging1.11
0.3Bold3.3
8.9Lists2.6
0.00Emoji0.00
0.06Headings0.64
0.09Transitions0.25
Based on 21 + 6 text responses
vs

Ask them anything yourself

Claude Sonnet 3.6 (2022-10-22)Grok 3 Thinking

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
Free preview13 of 58 slides
FAQ

Common questions