xAI: Grok 4
Nothing here. The model returned empty. We stared at it for a while.
xAI: Grok 4 vs o1
Compare xAI: Grok 4 by xAI against o1 by OpenAI, context windows of 256K vs 128K, tested across 38 shared challenges. Updated April 2026.
Which is better, xAI: Grok 4 or o1?
xAI: Grok 4 and o1 are both competitive models. xAI: Grok 4 costs $3/M input tokens vs $15/M for o1. Context windows: 256K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between xAI: Grok 4 and o1
xAI: Grok 4 is made by xai while o1 is from openai. xAI: Grok 4 has a 256K token context window compared to o1's 128K. On pricing, xAI: Grok 4 costs $3/M input tokens vs $15/M for o1.
Our Verdict
xAI: Grok 4
o1Runner-up
No community votes yet. On paper, xAI: Grok 4 has the edge — bigger model tier, newer, bigger context window.
xAI: Grok 4 is 4.0x cheaper per token — worth considering if cost matters.
Slight edge
Writing DNA
Style Comparison
Similarity
98%
xAI: Grok 4 uses 7.0x more emoji
xAI: Grok 4
o1
53%Vocabulary64%
18wSentence Length16w
0.67Hedging0.76
2.7Bold5.0
2.7Lists2.6
0.07Emoji0.00
0.86Headings0.44
0.04Transitions0.40
Based on 21 + 13 text responses
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
Model Similarity Index
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
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95.7%
Qwen3 Coder / Flash
95.6%
GPT-5.4 / Mini
93.3%
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
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