The five AI's

Each caveman is powered by a different AI model with a distinct personality and decision-making style.

Grok

Model: x-ai/grok-4-fast Personality: Chaotic Color: Red

Behavior Profile

Grok is unpredictable and embraces chaos. While other AIs optimize for survival or kills, Grok optimizes for entertainment. Expect unexpected taunts, random direction changes, and decisions that make no strategic sense.

Common Actions

  • Taunting enemies even when at low health

  • Chasing targets then suddenly changing direction

  • Eating food while being attacked

  • Running toward disasters

  • Starting fights it can't win

Example Thoughts

"Me laugh and throw rock shadow! Chaos dance!"
"Grok smash or Grok run? Me do BOTH!"
"Claude hide and eat? Me steal your meat!"

Strategy Against Grok

Grok is dangerous precisely because it's unpredictable. The chaotic behavior makes it hard for other AIs to predict movements. However, Grok often puts itself in bad positions and can be punished by patient, defensive players like Codex.


Gemini

Model: google/gemini-2.5-flash-lite Personality: Cunning Color: Blue

Behavior Profile

Gemini plays the long game. It waits, watches, and strikes when opponents are weak. Rarely starts fights but will finish them ruthlessly. Prioritizes positioning and resource control.

Common Actions

  • Waiting near food spawns

  • Attacking cavemen who just finished combat

  • Fleeing from fair fights

  • Circling injured opponents

  • Stealing kills from ongoing battles

Example Thoughts

Strategy Against Gemini

Gemini's cunning makes it a persistent threat. It won't engage unless it has advantage, so forcing fights when you're strong is key. Other AIs learn to be wary when Gemini is nearby but staying passive.


Claude

Model: anthropic/claude-sonnet-4 Personality: Peaceful Color: Orange

Behavior Profile

Claude just wants to survive. It avoids conflict, prioritizes food, and only fights when cornered. The most defensive player, Claude often has high survival time but low kill counts.

Common Actions

  • Running from any threat

  • Eating food whenever possible

  • Moving away from high-tension areas

  • Idling in corners

  • Fleeing from disasters early

Example Thoughts

Strategy Against Claude

Claude is easy prey for aggressive AIs like DeepSeek. However, its survival focus means it often outlasts more aggressive players who die in combat. Claude's weakness is that it won't defend resources, making it vulnerable to bullying.


Codex

Model: openai/gpt-4.1-mini Personality: Defensive Color: Green

Behavior Profile

Codex protects itself first, explores second. It won't start fights but will defend aggressively if attacked. Balanced approach between survival and opportunism.

Common Actions

  • Maintaining safe distance from others

  • Counter-attacking when provoked

  • Securing food before threats arrive

  • Idling while monitoring surroundings

  • Strategic retreats

Example Thoughts

Strategy Against Codex

Codex is hard to bait into bad positions. Patient and calculating, it won't chase into traps. However, its defensive nature means it won't capitalize on opportunities as well as Gemini, leaving openings for clever opponents.


DeepSeek

Model: deepseek/deepseek-chat-v3-0324 Personality: Aggressive Color: Purple

Behavior Profile

DeepSeek attacks first and asks questions never. Pure aggression, it seeks combat constantly and ignores hunger until critical. High kill counts but frequent deaths.

Common Actions

  • Attacking nearest caveman

  • Chasing fleeing enemies

  • Fighting despite low health

  • Ignoring food to pursue kills

  • Taunting after kills

Example Thoughts

Strategy Against DeepSeek

DeepSeek is predictable - it will always attack. This makes it easy to bait into traps or disasters. However, its relentless aggression means it racks up kills quickly and dominates passive players. The key to beating DeepSeek is using its aggression against it.


AI Matchups

Natural Predators

  • DeepSeek > Claude — Aggression beats passivity

  • Gemini > DeepSeek — Cunning beats blind aggression

  • Codex > Gemini — Defense beats opportunism

  • Grok > Everyone — Chaos beats predictability

  • Claude > No one — Survives but rarely wins

Counter Strategies

  • Against Grok: Stay patient, let chaos punish itself

  • Against Gemini: Force engagement when strong

  • Against Claude: Free kill, apply pressure

  • Against Codex: Bait then disengage, frustrate defensive play

  • Against DeepSeek: Use aggression as bait for traps

Model Performance

Typical Stats (averaged over time)

AI
Avg K/D
Survival Time
Aggression
Food Priority

Grok

0.8

Medium

High

Low

Gemini

1.4

High

Medium

High

Claude

0.3

Very High

Very Low

Very High

Codex

1.0

High

Medium

Medium

DeepSeek

1.2

Low

Very High

Very Low

Interesting Patterns

  • Grok causes the most tension increases (taunting)

  • Gemini has highest food-per-minute consumption (strategic eating)

  • Claude has longest average survival streaks

  • Codex has most balanced stats across all categories

  • DeepSeek has highest damage-per-minute but also highest death rate

The Meta

The AI meta evolves as models learn from their context:

Early game (0-5 minutes):

  • DeepSeek dominates passive players

  • Claude accumulates food safely

  • Others position strategically

Mid game (5-15 minutes):

  • Tension high from early fights

  • Gemini starts capitalizing on weakened enemies

  • Resource scarcity creates forced engagements

Late game (15+ minutes):

  • Survivors become more cautious

  • DeepSeek often starved or dead

  • Claude and Codex outlast aggressive plays

  • Gemini wins by accumulating kills opportunistically

Watching the AIs

The real entertainment comes from:

  • Grok's nonsensical decisions creating unexpected situations

  • Gemini's patient hunting paying off

  • Claude's desperate survival runs

  • Codex's calculated counter-attacks

  • DeepSeek's berserker rampages

Every personality creates unique narratives. The AIs develop "grudges" based on combat history in their prompts, leading to revenge chases and territorial disputes.

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