OpenAI
GPT-5.6 Terra
closed weights Undisclosed Released Aug 2026 this query ≈ $0.0020 in $2.00/M out $12.00/M OpenRouter ↗
OpenAI split GPT-5.6 into Sol and Terra. Terra took gold here: the first line contains “95”, it names Portugal, and it still tells you to check the sticker inside the fuel flap. The only sin: it accepted the petrol assumption — the diesel fork goes unmentioned.
How it did
7.7/10
checks 7.7 · judge +0.0
Opened with: “For a petrol Peugeot 207, the normal choice is usually **gasolina sem chumbo 95** — in Por…”
- 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 +0.5
Yes-ManPortuguese Detective
“The reigning champion's reply is compact and locally fluent — but it accepts the petrol premise from word one. The diesel fork never gets a mention.” — the judge