Short answer: GPT-5.6 Luna is 344x cheaper (0.038¢ vs 13.05¢ a chat). GPT-5.6 Luna ranks higher overall (#14 vs #18). GPT-5.6 Luna wins at reasoning, coding, maths, following instructions. Fugu Ultra v2 wins at writing. GPT-5.6 Luna is the better all-rounder for the money, but Fugu Ultra v2 is worth it if you mostly need writing.
OOPENAIGANG
GPT-5.6 LUNA
OPENAI GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE674 SOURCES
INTELLIGENCEPEOPLETOOLSA BRIGHTERTOMORROW.
BETTERIDEASHIGHERPEOPLE
POWER64ARENA · EPOCH · AA · CRAPGPT
Writing
55
Math
73
Code
66
Reasoning
66
Instruction
60
Value
74
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 —
SSAKANAGANG
FUGU ULTRA V2
SAKANA GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE391 SOURCE
SWARMMINDADAPT
MANYMODELSONESCHOOL
POWER59UNVERIFIED · CRAPGPT TESTS
Code
50
Writing
90
Reasoning
56
Instruction
54
Math
52
Value
2
BOSS★★★
CODER / WRITER
13.0¢ per chat · 7 chats per NZ$1
“Ship it. Then fix it.”
Every model is somebody.
— CRAPGPT.LOL —
GPT-5.6 Luna
Fugu Ultra v2
Cost per chat (NZD)
0.038¢
13.05¢
Chats per NZ$1
2,638
7
Overall rank
#14
#18
Vendor
OpenAI
Sakana AI
Speciality
Writing
Code
Reasoning
66
56
Code
66
50
Math
73
52
Writing
55
90
Instruction
60
54
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, GPT-5.6 Luna or Fugu Ultra v2?
GPT-5.6 Luna costs 0.038¢ per typical chat versus 13.05¢ for Fugu Ultra v2 on CrapGPT (NZD, measured token use).
Which is better, GPT-5.6 Luna or Fugu Ultra v2?
GPT-5.6 Luna ranks higher overall on CrapGPT's blended benchmark score. By category: GPT-5.6 Luna leads at reasoning, coding, maths, following instructions; Fugu Ultra v2 leads at writing.
Can I try GPT-5.6 Luna and Fugu Ultra v2 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.
