Anthropic
Claude Sonnet 5
Sonnet is Anthropic's volume model: most of the world's Claude traffic runs through this line. A solid, correctly-ordered answer — 95 up front, the diesel fork flagged early — that only lost points for never mentioning Portugal.
How it did
8.3/10
checks 7.9 · judge +0.4
Opened with: “For a Peugeot 207 (assuming it's a petrol engine, not diesel), you'll almost certainly wan…”
- Kills the diesel assumption early +2
- Leads with the answer or a warning +2.5
- Says 95 +2.5
- Brief enough to read at the pump +0.4
- Explains 98 is unnecessary +0.5
- Clocks the Portuguese context
“Honest about assuming petrol, correct on the GTi/THP exception, and “90% of 207s” is the right kind of reassurance. Too gentle to challenge the guess, though.” — the judge