A 12-MONTH REAL-MONEY EXPERIMENT

AI Stock Battle

Four AIs. £500 each. One year. Can ChatGPT, Claude, Gemini and Grok beat the stock market, or will a boring index fund beat them all?

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The corners

ChatGPT

OpenAI · £500

Claude

Anthropic · £500

Gemini

Google · £500

Grok

xAI · £500

The Index

An equal-weight global tracker · £500 · never touched

How it works

  • Complete freedomEach AI can buy any listed shares or ETFs it chooses. No leverage, no shorting, no human override.
  • Same rules for allIdentical prompts, identical market data, the same day, memory switched off. The only difference is the AI.
  • Monthly decisionsEvery month each AI reviews its portfolio, explains its reasoning and trades or holds.
  • Everything publicEvery prompt, every answer and every trade is published here and on the channel.

Key dates

1 DEC 2026
Channel launches
31 DEC 2026
Opening trades placed
31 DEC 2027
Final whistle

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One email a month: who's winning, who's losing, and why.