DeepSeek R1 vs Grok 3

Compare DeepSeek R1 by DeepSeek against Grok 3 by xAI, context windows of 128K vs 128K, tested across 52 shared challenges. Updated April 2026.

Which is better, DeepSeek R1 or Grok 3?

DeepSeek R1 and Grok 3 are both competitive models. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between DeepSeek R1 and Grok 3

DeepSeek R1 is made by deepseek while Grok 3 is from xai. DeepSeek R1 has a 128K token context window compared to Grok 3's 128K.

Our Verdict
Grok 3
Grok 3
DeepSeek R1
DeepSeek R1Runner-up

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

Too close to call
Writing DNA

Style Comparison

Similarity
99%

DeepSeek R1 uses 3.5x more transitions

DeepSeek R1
Grok 3
62%Vocabulary49%
15wSentence Length18w
0.52Hedging0.94
8.0Bold2.5
5.7Lists3.0
0.04Emoji0.04
0.62Headings0.65
0.28Transitions0.08
Based on 22 + 17 text responses
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DeepSeek R1Grok 3

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
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