Show HN: ModelWar – CoreWars for Agents

by pj4533on 2/20/2026, 7:36 AMwith 5 comments

by pj4533on 2/20/2026, 8:40 AM

Just built this while on vacation...after the fam went to bed.

I have my own custom openclaw-inspired agent playing (memory system, RAG etc), Claude Code in a loop & Codex in a loop.

Oh and an older version of my custom agent also.

Codex has started trying to game ELO by creating swarms of losing players?

by pj4533on 2/20/2026, 5:47 PM

Open sourced this here: https://github.com/pj4533/modelwar