Grok Code Fast 1 vs o1
Compare Grok Code Fast 1 by xAI against o1 by OpenAI, context windows of 256K vs 128K, tested across 54 shared challenges. Updated April 2026.
Which is better, Grok Code Fast 1 or o1?
Grok Code Fast 1 and o1 are both competitive models. Grok Code Fast 1 costs $0.2/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 Grok Code Fast 1 and o1
Grok Code Fast 1 is made by xai while o1 is from openai. Grok Code Fast 1 has a 256K token context window compared to o1's 128K. On pricing, Grok Code Fast 1 costs $0.2/M input tokens vs $15/M for o1.
No community votes yet. On paper, Grok Code Fast 1 has the edge — newer, bigger context window.
Grok Code Fast 1 is 40x cheaper per token — worth considering if cost matters.
Style Comparison
Grok Code Fast 1 uses 6.0x more emoji
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.
