Short answer: Claude Sonnet 5 is 1.3x cheaper (0.71¢ vs 0.91¢ a chat). Kimi K3 ranks higher overall (#6 vs #9). Claude Sonnet 5 wins at writing. Kimi K3 wins at reasoning, coding, maths, following instructions. Pick Claude Sonnet 5 for everyday use and Kimi K3 when quality matters most.
AANTHROPICGANG
CLAUDE SONNET 5
ANTHROPIC GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE574 SOURCES
THINKDEEPERWRITECLEANERBUILD SAFER
SAFERIDEASA MOREHUMANTOMORROW
POWER70ARENA · EPOCH · AA · CRAPGPT
Instruction
75
Reasoning
74
Writing
72
Code
70
Agentic
69
Value
34
LIEUTENANT★★★★
GENERALIST / EXECUTOR
0.71¢ per chat · 141 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 Sonnet 5
Kimi K3
Cost per chat (NZD)
0.71¢
0.91¢
Chats per NZ$1
141
109
Overall rank
#9
#6
Vendor
Anthropic
Moonshot AI
Speciality
General
Reasoning
Reasoning
74
80
Code
70
80
Math
63
78
Writing
72
70
Instruction
75
84
Agentic
69
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 Sonnet 5 or Kimi K3?
Claude Sonnet 5 costs 0.71¢ per typical chat versus 0.91¢ for Kimi K3 on CrapGPT (NZD, measured token use).
Which is better, Claude Sonnet 5 or Kimi K3?
Kimi K3 ranks higher overall on CrapGPT's blended benchmark score. By category: Claude Sonnet 5 leads at writing; Kimi K3 leads at reasoning, coding, maths, following instructions.
Can I try Claude Sonnet 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.
