DeepSeek R1
Nothing here. The model returned empty. We stared at it for a while.
DeepSeek R1 vs Z.ai: GLM 5.1
Compare DeepSeek R1 by DeepSeek against Z.ai: GLM 5.1 by Z-ai, context windows of 128K vs 203K, tested across 52 shared challenges. Updated April 2026.
Which is better, DeepSeek R1 or Z.ai: GLM 5.1?
DeepSeek R1 and Z.ai: GLM 5.1 are both competitive models. DeepSeek R1 costs $0.55/M input tokens vs $1.4/M for Z.ai: GLM 5.1. Context windows: 128K vs 203K tokens. Compare their real outputs side by side below.
Key Differences Between DeepSeek R1 and Z.ai: GLM 5.1
DeepSeek R1 is made by deepseek while Z.ai: GLM 5.1 is from z-ai. DeepSeek R1 has a 128K token context window compared to Z.ai: GLM 5.1's 203K. On pricing, DeepSeek R1 costs $0.55/M input tokens vs $1.4/M for Z.ai: GLM 5.1.
Our Verdict
DeepSeek R1
Z.ai: GLM 5.1
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
Writing DNA
Style Comparison
Similarity
93%
DeepSeek R1 uses 4.3x more emoji
DeepSeek R1
Z.ai: GLM 5.1
62%Vocabulary54%
15wSentence Length18w
0.52Hedging0.31
8.0Bold3.6
5.7Lists2.6
0.04Emoji0.00
0.62Headings0.43
0.28Transitions0.11
Based on 22 + 27 text responses
vsAsk them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
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