ChessBench LLM — leaderboard

Evaluates LLM chess ability using Glicko-2 ratings calibrated with engine anchors. Tracks win/loss/draw records, move legality percentage, and cost per game.

Source: chessbenchllm.onrender.com. Status: saturation imminent.

Interactive version: theaggregate.ai/benchmark?slug=chessbench-llm · How the rankings work · Data refreshed daily, snapshot 2026-07-22.