AI Roundtable – Let 200 models debate your question

Name: AI Roundtable – Let 200 models debate your question
Availability: InStock
Author: felix089

by felix089·Mar 24, 2026·118 points·98 comments

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AI Analysis

●MidCrowd Pleaser

Debate mode where models change minds is novel, but model comparison tools already exist.

Strengths

•Debate mode with model mind-changing is a genuinely interesting twist on comparison.
•No signup required, free credits shared across all users for testing.
•Structured output with reviewer model summarizing full transcripts.

Weaknesses

•Model comparison is well-served by Chatbot Arena, LMSYS, and others.
•Feels like a marketing tool for their startup Opper rather than standalone product.

Post Description

Hey HN! After the Car Wash Test post got quite a big discussion going (400+ comments, https://news.ycombinator.com/item?id=47128138), I spent the past few weeks building a tool so anyone can run these kinds of questions and get structured results. No signup and free to use.

You type a question, define answer options, pick up to 50 models at a time from a pool of 200+, and they all answer independently under identical conditions. No system prompt, structured output, same setup for every model.

You can also run a debate round where models see each other's reasoning and get a chance to change their minds. A reviewer model then summarizes the full transcript. All models are routed via my startup Opper. Any feedback is welcome!

Hope you enjoy it, and would love to hear what you think!