Grok 3 Beta
Nothing here. The model returned empty. We stared at it for a while.
Grok 3 Beta vs ChatGPT-4o (March 2025)
Compare Grok 3 Beta by xAI against ChatGPT-4o (March 2025) by OpenAI, context windows of 131K vs 128K, tested across 31 shared challenges. Updated March 2026.
Which is better, Grok 3 Beta or ChatGPT-4o (March 2025)?
Grok 3 Beta and ChatGPT-4o (March 2025) are both competitive models. Grok 3 Beta costs $2/M input tokens vs $5/M for ChatGPT-4o (March 2025). Context windows: 131K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 Beta and ChatGPT-4o (March 2025)
Grok 3 Beta is made by xai while ChatGPT-4o (March 2025) is from openai. Grok 3 Beta has a 131K token context window compared to ChatGPT-4o (March 2025)'s 128K. On pricing, Grok 3 Beta costs $2/M input tokens vs $5/M for ChatGPT-4o (March 2025).
Our Verdict
Grok 3 Beta
ChatGPT-4o (March 2025)
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Grok 3 Beta is 3.8x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
86%
ChatGPT-4o (March 2025) uses 94.5x more emoji
Grok 3 Beta
ChatGPT-4o (March 2025)
48%Vocabulary55%
19wSentence Length24w
0.67Hedging0.52
3.1Bold3.3
5.5Lists6.0
0.00Emoji0.94
0.52Headings0.63
0.28Transitions0.05
Based on 23 + 15 text responses
vsAsk them anything yourself
FAQ