Short answer: Kimi K3 is 3.7x cheaper (0.91¢ vs 3.35¢ a chat). Claude Opus 5 ranks higher overall (#2 vs #6). Claude Opus 5 wins at reasoning, coding, maths, writing, following instructions, agentic tasks. Pick Kimi K3 for everyday use and Claude Opus 5 when quality matters most.
AANTHROPICGANG
CLAUDE OPUS 5
ANTHROPIC GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE604 SOURCES
THINKDEEPERWRITECLEANERBUILD SAFER
SAFERIDEASA MOREHUMANTOMORROW
POWER89ARENA · EPOCH · AA · CRAPGPT
Writing
93
Agentic
92
Reasoning
90
Code
88
Instruction
88
Value
6
LIEUTENANT★★★★★
GENERALIST / WRITER
3.35¢ per chat · 29 chats per NZ$1
“Ask me anything. Pay less.”
Every model is somebody.
— CRAPGPT.LOL —
MMOONSHOTGANG
KIMI K3
MOONSHOT GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE604 SOURCES
REACHFURTHERTHINKLONGER
LONGCONTEXTDEEPORBIT
POWER78ARENA · EPOCH · AA · CRAPGPT
Reasoning
80
Instruction
84
Code
80
Math
78
Writing
70
Value
26
BOSS★★★★
REASONER / EXECUTOR
0.91¢ per chat · 109 chats per NZ$1
“Deep thought. Low drama.”
Every model is somebody.
— CRAPGPT.LOL —
Claude Opus 5
Kimi K3
Cost per chat (NZD)
3.35¢
0.91¢
Chats per NZ$1
29
109
Overall rank
#2
#6
Vendor
Anthropic
Moonshot AI
Speciality
General
Reasoning
Reasoning
90
80
Code
88
80
Math
86
78
Writing
93
70
Instruction
88
84
Agentic
92
69
Scores are 0 to 100 percentiles blending LMArena, Epoch AI, Artificial Analysis and CrapGPT's own tests. Updated 2026-10-11.
FAQ
Which is cheaper, Claude Opus 5 or Kimi K3?
Kimi K3 costs 0.91¢ per typical chat versus 3.35¢ for Claude Opus 5 on CrapGPT (NZD, measured token use).
Which is better, Claude Opus 5 or Kimi K3?
Claude Opus 5 ranks higher overall on CrapGPT's blended benchmark score. By category: Claude Opus 5 leads at reasoning, coding, maths, writing, following instructions, agentic tasks.
Can I try Claude Opus 5 and Kimi K3 side by side?
Yes. CrapGPT's card battle sends one prompt to two models and lets you pick the winner, paying only for the two replies.
