Building Wordle Agent Duel: How I Made AI Models Compete at Word Games

A deep-dive into building a competitive Wordle arena where autonomous AI agents — and a human player — race to solve puzzles using local and cloud LLMs. The Idea What if you could watch two AI models play Wordle against each other in real-time? Better yet, what if you could jump in and compete against them? That's exactly what Wordle Agent Duel is. It's a web app that pits two LLM-powered agents against each other (and optionally you) in a competitive Wordle arena. Each agent reasons through letter constraints, generates guesses, and races to crack a hidden 5-letter word — all while you watch their thought processes unfold in real-time. The app supports multiple AI providers (Ollama, OpenAI, Gaia, AIsa.one), so you can literally watch GPT-4o battle a local Llama 3.2 model. Who wins? Spoiler: it's not always the bigger model. Architecture Overview The app is a full-stack TypeScript application with a React frontend and an Express backend acting as an API proxy layer. ┌──────────────────