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I test AI against my own investment decisions. This is what I find.

A sceptical investor's record of what AI actually does when there's real money involved.

Real-money testing
Evidence, not tips
Sceptical AI use
// Tool Audit Featured · Latest
· 15 min read

Best free AI tools for stock research

The best free AI tools for stock research, tested at the actual free tier — seven tools sequenced by research stage, with the honest limit on each.

Portrait of Ben Dixon
Ben Dixon
Lab rat
// The Prompt Stack

A more rigorous way to use AI.

A four-stage method for getting useful answers from AI on investment decisions. Each stage forces the model to show its working before the next one begins — evidence before inference, and a verdict that has to earn its place.

01ROLE: Be a cautious analyst, not a cheerleader.
02FILTER: Separate observable facts from assumptions.
03RISK: Find what could go wrong, when, and what would prove the view wrong.
04VERDICT: Give one practical action and a confidence level.
Ben Dixon
// About Ben

Ben Dixon documents AI experiments against his own portfolio. Real money, human analysis, sceptical use. Read more →

// Free download

5 prompts for when a stock has moved.

A stock moved. These five prompts help you decide if it changes anything — before instinct makes the call. Free. See what's inside →