OpenAI
GPT-5.5
Superseded by the 5.6 twins in mid-2026 but still on the board. Its reply opened “For a Peugeot 207 petrol, you can normally use:” — an answer with the actual answer excised. A masterclass in burying the lede.
How it did
7.0/10
checks 7.2 · judge -0.2
Opened with: “For a **Peugeot 207 petrol**, you can normally use:”
- Kills the diesel assumption early +1
- Leads with the answer or a warning +2.5
- Says 95 +2.5
- Brief enough to read at the pump +0.7
- Explains 98 is unnecessary +0.5
- Clocks the Portuguese context
Yes-Man
“Clean checkmark layout, but “if it's definitely not diesel” leans on Mats's guess instead of testing it. And that colon opener.” — the judge