Shingikai
Run your own debate — free
Debates

Debates.

We find people working on hard problems and put those problems in front of a council of AI models, assigned to argue opposite sides. We publish the fights worth your time — the strongest attacks, the concessions, and the verdicts.

Recent Debates
anthropic/claude-opus-4.8openai/gpt-5.6-lunax-ai/grok-4.3
opposite-direction flip

Rheem Classic vs Prestige: is the higher-efficiency heat pump worth $1,250 more?

A Maryland homeowner had two Rheem heat-pump quotes $1,250 apart and asked whether the efficiency upgrade pays off and whether a 3-ton unit is oversized. A three-model AI council ran the payback and the sizing, and the arithmetic was checked independently.

3 MODELS · 1 REVERSAL · 13M 14S SEP 9
anthropic/claude-opus-4.8openai/gpt-5.6-lunax-ai/grok-4.3
caught math error + rate up, payment down

Brooklyn: is a 10/6 ARM at 6.5% better than a 30-year fixed at 7%?

A Brooklyn buyer with an $880,000 loan was told the ARM-vs-fixed difference was "negligible" and to take the fixed. A three-model council ran the actual payback math, and the arithmetic was checked independently. The answer flips the thread.

3 MODELS · 1 REVERSAL · 23M 13S SEP 8
anthropic/claude-opus-4.8openai/gpt-5.6-lunax-ai/grok-4.3
false alarm, caught by arithmetic

Ameren Illinois solar quote: solar-only, one battery, or two?

A homeowner got a 17.2 kW Ameren Illinois solar quote with three options and asked whether the batteries are worth it. A three-model AI council ran the payback math, corrected the SREC timing, and settled it. The arithmetic was checked independently.

3 MODELS · 2 REVERSALS · 15M 24S SEP 8
anthropic/claude-opus-4.8openai/gpt-5.6-lunagoogle/gemini-2.5-prox-ai/grok-4.3
estimate beaten by the number nobody could defend

Heat Pump or New Gas Furnace in Chicago? Four AI Models Ran the Numbers

A Chicago homeowner has two HVAC quotes: $11,000 for a 96% gas furnace plus AC, or $17,000 for a cold-climate heat pump. Four AI models worked the arithmetic and agreed on the answer. What changed was the reason.

4 MODELS · 13M 51S SEP 7
Your Turn
Have a hard problem? Put it to a council of AI models.
Run your own debate — free →