Short answer: Step 3.7 Flash is 1.9x cheaper (0.33¢ vs 0.63¢ a chat). OpenAI o3 ranks higher overall (#11 vs #13). OpenAI o3 wins at coding, agentic tasks. Step 3.7 Flash wins at reasoning, following instructions. Pick Step 3.7 Flash for everyday use and OpenAI o3 when quality matters most.


| OpenAI o3 | Step 3.7 Flash | |
|---|---|---|
| Cost per chat (NZD) | 0.63¢ | 0.33¢ |
| Chats per NZ$1 | 159 | 299 |
| Overall rank | #11 | #13 |
| Vendor | OpenAI | StepFun |
| Speciality | Math | Reasoning |
| Reasoning | 61 | 67 |
| Code | 64 | 51 |
| Instruction | 54 | 74 |
| Agentic | 71 | 67 |
Scores are 0 to 100 percentiles blending LMArena, Epoch AI, Artificial Analysis and CrapGPT's own tests. Updated 2026-10-11.
Step 3.7 Flash costs 0.33¢ per typical chat versus 0.63¢ for OpenAI o3 on CrapGPT (NZD, measured token use).
OpenAI o3 ranks higher overall on CrapGPT's blended benchmark score. By category: OpenAI o3 leads at coding, agentic tasks; Step 3.7 Flash leads at reasoning, following instructions.
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 OpenAI o3 details · Step 3.7 Flash details