Short answer: Claude Sonnet 5 is 4.8x cheaper (0.71¢ vs 3.35¢ a chat). Claude Opus 5 ranks higher overall (#2 vs #9). Claude Opus 5 wins at reasoning, coding, maths, writing, following instructions, agentic tasks. Pick Claude Sonnet 5 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 —
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
Claude Sonnet 5
Cost per chat (NZD)
3.35¢
0.71¢
Chats per NZ$1
29
141
Overall rank
#2
#9
Vendor
Anthropic
Anthropic
Speciality
General
General
Reasoning
90
74
Code
88
70
Math
86
63
Writing
93
72
Instruction
88
75
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 Claude Sonnet 5?
Claude Sonnet 5 costs 0.71¢ per typical chat versus 3.35¢ for Claude Opus 5 on CrapGPT (NZD, measured token use).
Which is better, Claude Opus 5 or Claude Sonnet 5?
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 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.
