Short answer: Claude Sonnet 5 is 3.1x cheaper (0.71¢ vs 2.22¢ a chat). Claude Opus 5.5 ranks higher overall (#1 vs #9). Claude Opus 5.5 wins at reasoning, coding, maths, writing, following instructions, agentic tasks. Pick Claude Sonnet 5 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 SCORE644 SOURCES
THINKDEEPERWRITECLEANERBUILD SAFER
SAFERIDEASA MOREHUMANTOMORROW
POWER94ARENA · EPOCH · AA · CRAPGPT
Code
94
Agentic
98
Writing
97
Reasoning
94
Math
91
Value
10
BOSS★★★★★
CODER / AGENT
2.22¢ per chat · 45 chats per NZ$1
“Give me the repo.”
Every model is somebody.
— CRAPGPT.LOL —
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 —
Claude Opus 5.5
Claude Sonnet 5
Cost per chat (NZD)
2.22¢
0.71¢
Chats per NZ$1
45
141
Overall rank
#1
#9
Vendor
Anthropic
Anthropic
Speciality
Code
General
Reasoning
94
74
Code
94
70
Math
91
63
Writing
97
72
Instruction
90
75
Agentic
98
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 5.5 or Claude Sonnet 5?
Claude Sonnet 5 costs 0.71¢ 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 Claude Sonnet 5?
Claude Opus 5.5 ranks higher overall on CrapGPT's blended benchmark score. By category: Claude Opus 5.5 leads at reasoning, coding, maths, writing, following instructions, agentic tasks.
Can I try Claude Opus 5.5 and Claude Sonnet 5 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.
