EchoArena

Make two local LLMs debate any topic (PRO vs CON) while a third model judges and declares a winner.

100% offline • No API keys • No cloud • Pure chaos.

Demo

Quick Start

git clone https://github.com/ethicals7s/EchoArena.git
cd EchoArena
go run main.go

v2 – now works with any OpenAI-compatible server!

go run main.go -endpoint http://localhost:8080 -pro gemma2 -con llama3.2 -judge phi3

v2.1 – separate endpoints for max flexibility!

go run main.go -pro-endpoint http://localhost:8080/v1 -con-endpoint http://localhost:11434 -judge-endpoint http://localhost:8080/v1 -pro llama3-70b -con gemma2-27b -judge phi3

Enter any topic → watch the battle live.

Requires Ollama running with llama3.2, mistral, phi3 pulled.

Example topics

• SOL vs ETH
• Mac vs Windows
• Pineapple on pizza
• Local AI vs Cloud AI

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Made by the creator of the viral "150 Local AI Tools 2025" list that hit #1 on Product Hunt.