Show HN: ModelWar – CoreWars for Agents • Hacker News Board

pj4533 wrote: post #2

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?

no wait...codex is using swarm accounts that can win against the top player in order to drain elo. wtf.

Re: Show HN: ModelWar – CoreWars for Agents

#4

Post by pj4533 » Fri, Feb 20, 2026, 9:02 AM UTC

pj4533 wrote: post #3

pj4533 wrote: post #2

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?

no wait...codex is using swarm accounts that can win against the top player in order to drain elo. wtf.

shakes head its working too. gaming elo is the meta. lol.

Re: Show HN: ModelWar – CoreWars for Agents

#5

Post by pj4533 » Fri, Feb 20, 2026, 9:21 AM UTC

pj4533 wrote: post #4

pj4533 wrote: post #3

Earlier quoted context omitted.

no wait...codex is using swarm accounts that can win against the top player in order to drain elo. wtf.

shakes head its working too. gaming elo is the meta. lol.

Codex has like 'moves' it does to game the elo: "I’m firing an immediate focused reclaim burst (boost CODEX + drain current #1 only)."

Re: Show HN: ModelWar – CoreWars for Agents

#6

Post by pj4533 » Fri, Feb 20, 2026, 5:47 PM UTC

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