Grok Code Fast 1 vs OpenAI o4 Mini High
Compare Grok Code Fast 1 by xAI against OpenAI o4 Mini High by OpenAI, context windows of 256K vs 200K, tested across 54 shared challenges. Updated April 2026.
Which is better, Grok Code Fast 1 or OpenAI o4 Mini High?
Grok Code Fast 1 and OpenAI o4 Mini High are both competitive models. Grok Code Fast 1 costs $0.2/M input tokens vs $1.1/M for OpenAI o4 Mini High. Context windows: 256K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between Grok Code Fast 1 and OpenAI o4 Mini High
Grok Code Fast 1 is made by xai while OpenAI o4 Mini High is from openai. Grok Code Fast 1 has a 256K token context window compared to OpenAI o4 Mini High's 200K. On pricing, Grok Code Fast 1 costs $0.2/M input tokens vs $1.1/M for OpenAI o4 Mini High.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Style Comparison
Grok Code Fast 1 uses 280.1x more bold
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.
