xAI: Grok 4 Fast (free) vs Kimi Linear 48B A3B Instruct
Compare xAI: Grok 4 Fast (free) by xAI against Kimi Linear 48B A3B Instruct by Moonshot AI, context windows of 2.0M vs 1.0M, tested across 35 shared challenges.
Our Verdict
xAI: Grok 4 Fast (free)
Kimi Linear 48B A3B Instruct
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
xAI: Grok 4 Fast (free)
Input
$0.000
Output
$0.000
Kimi Linear 48B A3B Instruct
Input
$0.30
Output
$0.60
Writing DNA
Style Comparison
Similarity
48%
xAI: Grok 4 Fast (free) uses 6.1x more transitions
xAI: Grok 4 Fast (free)
Kimi Linear 48B A3B Instruct
65%Vocabulary63%
13wSentence Length15w
0.56Hedging0.19
1.4Bold5.2
2.5Lists3.2
0.00Emoji0.00
1.58Headings0.38
0.28Transitions0.05
Based on 14 + 14 text responses
Research
What we learned reading every model
FAQ
