Short answer: OpenAI o3 is 3.5x cheaper (0.63¢ vs 2.22¢ a chat). Claude Opus 5.5 ranks higher overall (#1 vs #5). Claude Opus 5.5 wins at reasoning, coding, maths, agentic tasks. Pick OpenAI o3 for everyday use and Claude Opus 5.5 when quality matters most.
AANTHROPICGANG
CLAUDE OPUS 5.5
ANTHROPIC GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE643 SOURCES
THINKDEEPERWRITECLEANERBUILD SAFER
SAFERIDEASA MOREHUMANTOMORROW
POWER92EPOCH · AA · CRAPGPT
Code
92
Agentic
98
Reasoning
92
Math
91
Writing
90
Value
10
BOSS★★★★★
CODER / AGENT
2.22¢ per chat · 45 chats per NZ$1
“Give me the repo.”
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 —
Claude Opus 5.5
OpenAI o3
Cost per chat (NZD)
2.22¢
0.63¢
Chats per NZ$1
45
159
Overall rank
#1
#5
Vendor
Anthropic
OpenAI
Speciality
Code
Math
Reasoning
92
73
Code
92
83
Math
91
89
Agentic
98
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, Claude Opus 5.5 or OpenAI o3?
OpenAI o3 costs 0.63¢ per typical chat versus 2.22¢ for Claude Opus 5.5 on CrapGPT (NZD, measured token use).
Which is better, Claude Opus 5.5 or OpenAI o3?
Claude Opus 5.5 ranks higher overall on CrapGPT's blended benchmark score. By category: Claude Opus 5.5 leads at reasoning, coding, maths, agentic tasks.
Can I try Claude Opus 5.5 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.
