DeepSeek V4.1 Flash vs GPT-5.6 Luna

Short answer: GPT-5.6 Luna is 1.8x cheaper (0.038¢ vs 0.070¢ a chat). DeepSeek V4.1 Flash ranks higher overall (#11 vs #14). DeepSeek V4.1 Flash wins at reasoning, coding, writing. GPT-5.6 Luna wins at maths, agentic tasks. Pick GPT-5.6 Luna for everyday use and DeepSeek V4.1 Flash when quality matters most.

DeepSeek V4.1 Flash
DDEEPSEEKGANG
DEEPSEEK V4.1 FLASH
DEEPSEEK GANG
CRAPGPT.LOLINDEPENDENT
AI MODEL
REVIEWS
CRAP SCORE674 SOURCES
REALTIMEINTELLIGENCEFOR AFASTERTOMORROW
SEEPLANACTFASTER
POWER66ARENA · EPOCH · AA · CRAPGPT
Reasoning
85
Code
73
Writing
60
Instruction
54
Math
47
Value
67
OPERATOR★★★★
GENERALIST / REASONER
0.070¢ per chat · 1,435 chats per NZ$1
“Polished. Dangerous. Usually right.”
Every model is somebody.
— CRAPGPT.LOL —
GPT-5.6 Luna
OOPENAIGANG
GPT-5.6 LUNA
OPENAI GANG
CRAPGPT.LOLINDEPENDENT
AI MODEL
REVIEWS
CRAP SCORE694 SOURCES
INTELLIGENCEPEOPLETOOLSA BRIGHTERTOMORROW.
BETTERIDEASHIGHERPEOPLE
POWER64ARENA · EPOCH · AA · CRAPGPT
Writing
55
Math
71
Code
66
Reasoning
66
Agentic
57
Value
79
SPECIALIST★★★★
WRITER / ANALYST
0.038¢ per chat · 2,638 chats per NZ$1
“Say it once. Say it right.”
Every model is somebody.
— CRAPGPT.LOL —
DeepSeek V4.1 FlashGPT-5.6 Luna
Cost per chat (NZD)0.070¢0.038¢
Chats per NZ$11,4352,638
Overall rank#11#14
VendorDeepSeekOpenAI
SpecialityGeneralWriting
Crowd Elo988no votes
Reasoning8566
Code7366
Math4771
Writing6055
Agentic4157

Scores are 0 to 100 percentiles blending LMArena, Epoch AI, Artificial Analysis and CrapGPT's own tests. Updated 2026-10-14.

FAQ

Which is cheaper, DeepSeek V4.1 Flash or GPT-5.6 Luna?

GPT-5.6 Luna costs 0.038¢ per typical chat versus 0.070¢ for DeepSeek V4.1 Flash on CrapGPT (NZD, measured token use).

Which is better, DeepSeek V4.1 Flash or GPT-5.6 Luna?

DeepSeek V4.1 Flash ranks higher overall on CrapGPT's blended benchmark score. By category: DeepSeek V4.1 Flash leads at reasoning, coding, writing; GPT-5.6 Luna leads at maths, agentic tasks.

Can I try DeepSeek V4.1 Flash and GPT-5.6 Luna 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.

Battle them yourself DeepSeek V4.1 Flash details · GPT-5.6 Luna details