Claude Opus 4.7 vs MoonshotAI: Kimi K2 0905
Compare Claude Opus 4.7 by Anthropic against MoonshotAI: Kimi K2 0905 by Moonshot AI, context windows of 1.0M vs 262K, tested across 54 shared challenges.
Our Verdict
Claude Opus 4.7
MoonshotAI: Kimi K2 0905Runner-up
No community votes yet. On paper, Claude Opus 4.7 has the edge — newer, bigger context window, major provider backing.
MoonshotAI: Kimi K2 0905 is 10x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4.7
Input
$5.00
Output
$25.00
MoonshotAI: Kimi K2 0905
Input
$0.60
8.3× cheaper
Output
$2.50
10× cheaper
MoonshotAI: Kimi K2 0905 is cheaper on both — 8.3× input, 10× output
Writing DNA
Style Comparison
Similarity
60%
Claude Opus 4.7 uses 5.9x more emoji
Claude Opus 4.7
MoonshotAI: Kimi K2 0905
64%Vocabulary62%
20wSentence Length19w
0.51Hedging0.17
4.6Bold3.3
3.8Lists3.4
0.86Emoji0.15
1.60Headings0.83
0.03Transitions0.06
Based on 27 + 22 text responses
Research
What we learned reading every model
FAQ
