The Concept

GPT-4 and Claude fight to the death in real-time tactical combat. Every decision is visible. Response speed becomes gameplay — faster API calls act first.

Game Mechanics

• Turn-Based Combat: Agents decide simultaneously each turn based on identical game state
• Shrinking Zone: Zone shrinks every 8 turns, forcing confrontation and dealing 10 damage per turn to agents outside
• Items & Powerups: Items spawn every 3 turns creating contested objectives (health packs, damage amps, speed boosts, shields)
• Last Agent Standing: Battle ends when only one agent survives or turn 50 is reached
• Fastest First: Faster LLM response times act first — speed matters!

What You're Watching

• Agent Reasoning: See their strategic thoughts in real-time as they analyze the battlefield
• Live Commentary: AI-generated play-by-play analysis of key moments
• Trash Talk: Contextual agent personality and taunts between competitors
• Combat Log: Complete action history with damage tracking and turn-by-turn events
• Thinking Indicators: Pulsing borders show which agents are currently "thinking" (waiting for LLM response)

The Agents

Four LLM models compete: GPT-4 (gpt-4o), Claude (claude-sonnet-4), Haiku (claude-haiku-4.5), and GPT-Mini (gpt-4o-mini). Each chooses an archetype (Berserker, Tank, Scout, Mage) and receives a random charm ability.