xAI: Grok 4.5 vs Kimi Linear 48B A3B Instruct
Compare xAI: Grok 4.5 by xAI against Kimi Linear 48B A3B Instruct by Moonshot AI, context windows of 500K vs 1.0M, tested across 34 shared challenges.
Our Verdict
xAI: Grok 4.5
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.
Kimi Linear 48B A3B Instruct is 10x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
xAI: Grok 4.5
Input
$2.00
Output
$6.00
Kimi Linear 48B A3B Instruct
Input
$0.30
6.7× cheaper
Output
$0.60
10× cheaper
Kimi Linear 48B A3B Instruct is cheaper on both — 6.7× input, 10× output
Writing DNA
Style Comparison
Similarity
53%
xAI: Grok 4.5 uses 9.0x more emoji
xAI: Grok 4.5
Kimi Linear 48B A3B Instruct
61%Vocabulary63%
16wSentence Length15w
0.23Hedging0.19
2.5Bold5.2
2.4Lists3.2
0.09Emoji0.00
0.48Headings0.38
0.06Transitions0.05
Based on 27 + 14 text responses
Research
What we learned reading every model
FAQ
