Grok Code Fast 1vsKimi K2
Grok Code Fast 1 is cheaper than Kimi K2 at $0.2/M vs $0.57/M input tokens.
| Spec | Grok Code Fast 1 | Kimi K2 |
|---|---|---|
| Input price | $0.2/M tokens | $0.57/M tokens |
| Output price | $1.5/M tokens | $2.3/M tokens |
| Context window | 256K tokens | — |
| Released | Aug 2025 | Jul 2025 |
| SWE-bench Verified | 70.8% | 65.8% |
Our Verdict
Grok Code Fast 1
Kimi K2
Not enough votes to call it. On the specs, nothing separates them.
Too close to call
API pricing
Cost per 1M tokens
Grok Code Fast 1
Input
$0.20
2.8× cheaper
Output
$1.50
1.5× cheaper
Kimi K2
Input
$0.57
Output
$2.30
Grok Code Fast 1 is cheaper on both — 2.8× input, 1.5× output
Writing DNA
Style Comparison
Similarity
49%
Kimi K2 uses 11.5x more emoji
Grok Code Fast 1
Kimi K2
60%Vocabulary63%
17wSentence Length19w
0.97Hedging0.35
2.8Bold4.2
2.5Lists3.6
0.06Emoji0.68
0.89Headings0.61
0.11Transitions0.06
Based on 23 + 22 text responses
Research
What we learned reading every model
FAQ
Common questions
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