Short answer: DeepSeek V4.1 Flash is 7.1x cheaper (0.099¢ vs 0.71¢ a chat). DeepSeek V4.1 Flash ranks higher overall (#8 vs #9). Claude Sonnet 5 wins at writing, agentic tasks. DeepSeek V4.1 Flash wins at reasoning, coding, maths, following instructions. DeepSeek V4.1 Flash is the better all-rounder for the money, but Claude Sonnet 5 is worth it if you mostly need writing, agentic tasks.
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 —
DDEEPSEEKGANG
DEEPSEEK V4.1 FLASH
DEEPSEEK GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE704 SOURCES
REALTIMEINTELLIGENCEFOR AFASTERTOMORROW
SEEPLANACTFASTER
POWER72ARENA · EPOCH · AA · CRAPGPT
Reasoning
85
Instruction
82
Code
73
Math
66
Writing
61
Value
66
OPERATOR★★★★
GENERALIST / REASONER
0.099¢ per chat · 1,009 chats per NZ$1
“Polished. Dangerous. Usually right.”
Every model is somebody.
— CRAPGPT.LOL —
Claude Sonnet 5
DeepSeek V4.1 Flash
Cost per chat (NZD)
0.71¢
0.099¢
Chats per NZ$1
141
1,009
Overall rank
#9
#8
Vendor
Anthropic
DeepSeek
Speciality
General
General
Crowd Elo
no votes
988
Reasoning
74
85
Code
70
73
Math
63
66
Writing
72
61
Instruction
75
82
Agentic
69
41
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 DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash costs 0.099¢ per typical chat versus 0.71¢ for Claude Sonnet 5 on CrapGPT (NZD, measured token use).
Which is better, Claude Sonnet 5 or DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash ranks higher overall on CrapGPT's blended benchmark score. By category: Claude Sonnet 5 leads at writing, agentic tasks; DeepSeek V4.1 Flash leads at reasoning, coding, maths, following instructions.
Can I try Claude Sonnet 5 and DeepSeek V4.1 Flash 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.
