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CONTESTED

93 percent of developers now use AI coding tools. Six independent studies converge on the same measured productivity gain: about 10 percent. In a randomized trial, experienced developers using frontier AI tools took 19 percent longer than those working without them. They thought they were 20 percent faster.

AI tool vendors and companies citing AI productivity to justify spend. Recorded 18 August 2026. Our ruling means: credible experts genuinely disagree.

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Receipts pack

The evidence file for this verdict

4 receipts: 1 support the claim, 2 contradict it, 1 add context. 5 figures on the record, 1 traced to a quoted receipt.

  1. 1philippdubach.com ↗Every source link and quote stays open on the story page.
  2. 2
  3. 3
  4. 4

Members get the full file

What each receipt proves, and what would change our mind.

  • Every receipt with its source, date and stance, plus what it proves
  • The figures table, each number traced to the receipt that states it
  • What would change our verdict
  • Our call on the record, with its due date

The verdict, the opening and every source link stay free. Membership opens the evidence file for every checked story.

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