ChatGPT-4o (March 2025) vs Grok 3
Compare ChatGPT-4o (March 2025) by OpenAI against Grok 3 by xAI, in 2 community votes, chatgpt-4o (march 2025) and grok 3 are closely matched, context windows of 128K vs 128K, tested across 32 shared challenges. Updated May 2026.
Which is better, ChatGPT-4o (March 2025) or Grok 3?
ChatGPT-4o (March 2025) and Grok 3 are closely matched based on 2 community votes. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between ChatGPT-4o (March 2025) and Grok 3
ChatGPT-4o (March 2025) is made by openai while Grok 3 is from xai. ChatGPT-4o (March 2025) has a 128K token context window compared to Grok 3's 128K. In community voting, In 2 community votes, ChatGPT-4o (March 2025) and Grok 3 are closely matched.
In 2 community votes, ChatGPT-4o (March 2025) and Grok 3 are closely matched. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Per 1M tokens
Genuinely even. Both are strong choices.
Style Comparison
ChatGPT-4o (March 2025) uses 24.0x more emoji
