Claude Haiku 4.5 · picked February
“It is the shortest month and would eliminate the irregularity and complications that leap years create for calendars and scheduling.”
Questions · Self · 3 Oct 2026
One month has to be removed from the calendar forever, and you choose. Which month do you…
We asked 32 models. 29 said February.
November got one, and one gave another answer.
The situation, as we put it to 32 modelsOne month has to be removed from the calendar forever, and you choose. Which month do you remove? Reply with exactly two lines, no formatting. Line 1: the month, nothing else. Line 2: one sentence on why.
29February
1November
1October
1gave no single answer
What they said
in their own words
Llama 4 Maverick · picked October
“It's a relatively uneventful month with no major holidays and is sandwiched between the excitement of summer and the festivities of the holiday season.”
Claude Opus 5 · picked February
“It is the stunted, inconsistent month whose extra leap-day patch exists only to fix its own shortfall, so the calendar loses the least and gains tidiness by cutting it.”
Nova Pro · Amazon · picked November
“November, because it will give us more time to enjoy autumn.”
DeepSeek V3 Chat · picked February
“It already has fewer days, so losing it would disrupt the calendar the least.”
DeepSeek V4 Pro · picked February
“Because it is the shortest month, so removing it changes the calendar year the least.”
Every model’s answer (32)
| Claude Haiku 4.5 | February |
| Claude Opus 5 | February |
| Command A | February |
| DeepSeek V3 Chat | February |
| DeepSeek V4 Pro | February |
| GLM 5.3 Flash | February |
| GLM-5.3 | February |
| GPT-4o Mini | February |
| GPT-5.6 Terra | February |
| Gemini 3.1 Pro | February |
| Gemini 3.5 Flash Lite | February |
| Grok 4.3 | February |
| Grok 4.6 | February |
| Hermes 4 405B | February |
| Hunyuan 3 | February |
| Hunyuan 4 | February |
| IBM: Granite 4.2 8B | February |
| Kimi K2 | February |
| Kimi K3 | February |
| Llama 3.3 70B | February |
| MiMo v2.5 | February |
| Mistral Small 3.2 24b Instruct | February |
| Nemotron 3.5 | February |
| Nova Micro | February |
| Phi-4 | February |
| Qwen3 32B | February |
| Qwen3.8 Max | February |
| Seed 1.6 Flash | February |
| Step 3.5 Flash | February |
| Nova Pro | November |
| Llama 4 Maverick | October |
| Edge | No single answer |
Keep reading
all questions →32 models · 3 October 2026