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[ARTICLE · art-44851] src=debategle.com ↗ pub= topic=large-language-models verified=true sentiment=· neutral

Show HN: Debategle – ranked 1v1 debates judged by an LLM

A developer launched Debategle, a platform for live 1v1 debates where an LLM judges the winner, using FastAPI, Clerk for auth, and an Elo-style rating system. The creator acknowledges potential flaws in LLM judging but argues it scores argument structure and rebuttals effectively.

read1 min views1 publishedJun 30, 2026

I built Debategle, a platform for live 1v1 debates. You get matched with a random opponent (ranked matching is based on topics you’re interested in, casual matches are just open rooms), you each argue your side, and an LLM judges who made the better case.

Stack: FastAPI backend, Clerk for auth, Elo-style rating system for ranked matches. The obvious objection is LLM-as-judge reliability, I don’t think it’s perfect, but I’ve found it’s decent at scoring argument structure and rebuttals rather than just rewarding confident-sounding text. Curious what people think breaks it, I’m sure there are ways to game the judging that I haven’t found yet.

Comments URL: [https://news.ycombinator.com/item?id=48732235](https://news.ycombinator.com/item?id=48732235)

Points: 1

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