Short answer: GPT-5.6 Luna is 8.8x cheaper (0.038¢ vs 0.33¢ a chat). Step 3.7 Flash ranks higher overall (#13 vs #14). GPT-5.6 Luna wins at coding. Step 3.7 Flash wins at reasoning, following instructions, agentic tasks. Pick GPT-5.6 Luna for everyday use and Step 3.7 Flash when quality matters most.
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 —
SSTEPFUNGANG
STEP 3.7 FLASH
STEPFUN GANG
CRAPGPT.LOLINDEPENDENT AI MODEL REVIEWS
CRAP SCORE582 SOURCES
STEPBYSTEP
REASONCLIMBSOLVE
POWER64AA · CRAPGPT
Reasoning
67
Instruction
74
Agentic
67
Math
52
Code
51
Value
46
SPECIALIST★★★★
REASONER / EXECUTOR
0.33¢ per chat · 299 chats per NZ$1
“Think deeper. Move carefully.”
Every model is somebody.
— CRAPGPT.LOL —
GPT-5.6 Luna
Step 3.7 Flash
Cost per chat (NZD)
0.038¢
0.33¢
Chats per NZ$1
2,638
299
Overall rank
#14
#13
Vendor
OpenAI
StepFun
Speciality
Writing
Reasoning
Reasoning
66
67
Code
66
51
Instruction
60
74
Agentic
57
67
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 Step 3.7 Flash?
GPT-5.6 Luna costs 0.038¢ per typical chat versus 0.33¢ for Step 3.7 Flash on CrapGPT (NZD, measured token use).
Which is better, GPT-5.6 Luna or Step 3.7 Flash?
Step 3.7 Flash ranks higher overall on CrapGPT's blended benchmark score. By category: GPT-5.6 Luna leads at coding; Step 3.7 Flash leads at reasoning, following instructions, agentic tasks.
Can I try GPT-5.6 Luna and Step 3.7 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.
