GPT-4o mini vs Grok 3 Beta
Compare GPT-4o mini by OpenAI against Grok 3 Beta by xAI, in 2 community votes, grok 3 beta wins 100% of head-to-head duels, context windows of 128K vs 131K, tested across 54 shared challenges. Updated April 2026.
Which is better, GPT-4o mini or Grok 3 Beta?
Grok 3 Beta is the better choice overall, winning 100% of 2 blind community votes on Rival. GPT-4o mini costs $0.15/M input tokens vs $2/M for Grok 3 Beta. Context windows: 128K vs 131K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o mini and Grok 3 Beta
GPT-4o mini is made by openai while Grok 3 Beta is from xai. GPT-4o mini has a 128K token context window compared to Grok 3 Beta's 131K. On pricing, GPT-4o mini costs $0.15/M input tokens vs $2/M for Grok 3 Beta. In community voting, In 2 community votes, Grok 3 Beta wins 100% of head-to-head duels.
In 2 community votes, Grok 3 Beta wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Pick Grok 3 Beta. In 2 blind votes, Grok 3 Beta wins 100% of the time. That's not luck.
GPT-4o mini is 6.7x cheaper per token — worth considering if cost matters.
Style Comparison
GPT-4o mini uses 2.0x more headings
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
