Short answer: OpenAI o3 is 2.2x cheaper (0.63¢ vs 1.36¢ a chat). OpenAI o3 ranks higher overall (#5 vs #8). Kimi K3 wins at reasoning. OpenAI o3 wins at coding, maths, agentic tasks. OpenAI o3 is the better all-rounder for the money, but Kimi K3 is worth it if you mostly need reasoning.
MMOONSHOTGANG
KIMI K3
MOONSHOT GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE563 SOURCES
REACHFURTHERTHINKLONGER
LONGCONTEXTDEEPORBIT
POWER74EPOCH · AA · CRAPGPT
Reasoning
76
Code
76
Math
73
Agentic
69
Instruction
54
Value
22
BOSS★★★★
REASONER / CODER
1.36¢ per chat · 73 chats per NZ$1
“Deep thought. Low drama.”
Every model is somebody.
— CRAPGPT.LOL —
OOPENAIGANG
OPENAI O3
OPENAI GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE672 SOURCES
INTELLIGENCEPEOPLETOOLSA BRIGHTERTOMORROW.
BETTERIDEASHIGHERPEOPLE
POWER82AA · CRAPGPT
Math
89
Code
83
Instruction
79
Reasoning
73
Agentic
71
Value
38
LIEUTENANT★★★★
ANALYST / CODER
0.63¢ per chat · 159 chats per NZ$1
“Show your working.”
Every model is somebody.
— CRAPGPT.LOL —
Kimi K3
OpenAI o3
Cost per chat (NZD)
1.36¢
0.63¢
Chats per NZ$1
73
159
Overall rank
#8
#5
Vendor
Moonshot AI
OpenAI
Speciality
Reasoning
Math
Reasoning
76
73
Code
76
83
Math
73
89
Agentic
69
71
Scores are 0 to 100 percentiles blending LMArena, Epoch AI, Artificial Analysis and CrapGPT's own tests. Updated 2026-10-13.
FAQ
Which is cheaper, Kimi K3 or OpenAI o3?
OpenAI o3 costs 0.63¢ per typical chat versus 1.36¢ for Kimi K3 on CrapGPT (NZD, measured token use).
Which is better, Kimi K3 or OpenAI o3?
OpenAI o3 ranks higher overall on CrapGPT's blended benchmark score. By category: Kimi K3 leads at reasoning; OpenAI o3 leads at coding, maths, agentic tasks.
Can I try Kimi K3 and OpenAI o3 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.
