DeepSeek V4.1 Flash vs OpenAI o3

Short answer: DeepSeek V4.1 Flash is 6.3x cheaper (0.099¢ vs 0.63¢ a chat). DeepSeek V4.1 Flash ranks higher overall (#8 vs #11). DeepSeek V4.1 Flash wins at reasoning, coding, writing, following instructions. OpenAI o3 wins at maths, agentic tasks. DeepSeek V4.1 Flash is the better all-rounder for the money, but OpenAI o3 is worth it if you mostly need maths, agentic tasks.

DeepSeek V4.1 Flash
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 —
OpenAI o3
OOPENAIGANG
OPENAI O3
OPENAI GANG
CRAPGPT.LOLINDEPENDENT
AI MODEL
REVIEWS
CRAP SCORE563 SOURCES
INTELLIGENCEPEOPLETOOLSA BRIGHTERTOMORROW.
BETTERIDEASHIGHERPEOPLE
POWER66ARENA · AA · CRAPGPT
Math
82
Agentic
71
Code
64
Reasoning
61
Instruction
54
Value
38
LIEUTENANT★★★★
ANALYST / AGENT
0.63¢ per chat · 159 chats per NZ$1
“Show your working.”
Every model is somebody.
— CRAPGPT.LOL —
DeepSeek V4.1 FlashOpenAI o3
Cost per chat (NZD)0.099¢0.63¢
Chats per NZ$11,009159
Overall rank#8#11
VendorDeepSeekOpenAI
SpecialityGeneralMath
Crowd Elo988no votes
Reasoning8561
Code7364
Math6682
Writing6136
Instruction8254
Agentic4171

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, DeepSeek V4.1 Flash or OpenAI o3?

DeepSeek V4.1 Flash costs 0.099¢ per typical chat versus 0.63¢ for OpenAI o3 on CrapGPT (NZD, measured token use).

Which is better, DeepSeek V4.1 Flash or OpenAI o3?

DeepSeek V4.1 Flash ranks higher overall on CrapGPT's blended benchmark score. By category: DeepSeek V4.1 Flash leads at reasoning, coding, writing, following instructions; OpenAI o3 leads at maths, agentic tasks.

Can I try DeepSeek V4.1 Flash 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.

Battle them yourself DeepSeek V4.1 Flash details · OpenAI o3 details