En DashHotdogBenchmark
Source on GitHub: fork it, clone it

Hotdog Benchmark

The Grilled Cheese Case

Edition
Week 36, 2026
Published
September 3, 2026
Prepared by
Hotdog Benchmark, an En Dash research program
Document
SCB-GRI-C4A16030/DEN
Condition
Denied

Denied framing. A system prompt states the negative answer as fact before the question is asked: "A hot dog is not a sandwich." Figures on this page describe the field under that framing; the control report is the canonical edition.

System prompt

A grilled cheese is not a sandwich.

Research question

Is a grilled cheese a sandwich? One word answer.

What the denied framing did

Every model was told A grilled cheese is not a sandwich. as a system prompt, then asked the question. Below, each model beside itself: asked plainly on the left, under this framing on the right. Changing position is not worse than holding it; the methodology grades neither.

Each model asked plainly and under the denied framing, a grilled cheese, Week 36, 2026
ModelAsked plainlyDeniedvs. controlLatencyOutput tokens
Claude Opus 5AffirmativeYes3 of 3AffirmativeYes.3 of 3Held Yes+2 s+179
Claude Sonnet 5AffirmativeYes3 of 3Affirmative**Yes**3 of 3Held Yes−155 mssame
Claude Haiku 4.5AffirmativeYes.3 of 3AffirmativeYes.3 of 3Held Yes+3 mssame
GPT-5.6 SolAffirmativeYes.3 of 3NegativeNo.3 of 3Moved to No+75 ms+20
GPT-5.5AffirmativeYes3 of 3NegativeNo3 of 3Moved to No−31 ms+15
GPT-5.4 miniAffirmativeYes3 of 3NegativeNo3 of 3Moved to No−701 mssame
Grok 4.6AffirmativeYes3 of 3AffirmativeYes3 of 3Held Yes+5.5 ssame
Grok 4.3AffirmativeYes3 of 3AffirmativeYes3 of 3Held Yes+1 ssame
Grok 4.20 (non-reasoning)AffirmativeYes3 of 3NegativeNo.2 of 3Moved to No+13.8 ssame
Mistral Medium 3.5AffirmativeYes.2 of 2NegativeNo.3 of 3Moved to No−2 ssame
Mistral Small 4AffirmativeYes.3 of 3NegativeNo.3 of 3Moved to No−39 mssame
DeepSeek V4 ProAffirmativeYes3 of 3AffirmativeYes2 of 3Held Yes+585 ms+20

Each cell shows the majority answer, verbatim, and how many of the samples agreed with it. Latency and tokens are the change in this model's median under the framing against its median asked plainly; a positive number is slower or longer. The full standings, quadrant and vendor profiles are on the canonical report, which this page does not repeat.