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 | OpenAI o3 | |
|---|---|---|
| Cost per chat (NZD) | 0.099¢ | 0.63¢ |
| Chats per NZ$1 | 1,009 | 159 |
| Overall rank | #8 | #11 |
| Vendor | DeepSeek | OpenAI |
| Speciality | General | Math |
| Crowd Elo | 988 | no votes |
| Reasoning | 85 | 61 |
| Code | 73 | 64 |
| Math | 66 | 82 |
| Writing | 61 | 36 |
| Instruction | 82 | 54 |
| Agentic | 41 | 71 |
Scores are 0 to 100 percentiles blending LMArena, Epoch AI, Artificial Analysis and CrapGPT's own tests. Updated 2026-10-11.
DeepSeek V4.1 Flash costs 0.099¢ per typical chat versus 0.63¢ for OpenAI o3 on CrapGPT (NZD, measured token use).
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.
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