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Evernote turns AI-driven discovery into paid subscriptions

Evernote used ChatGPT Ads to introduce its note-taking app to people working with AI. The team tracked how often free trials led to paid subscriptions.

We haven't written up this one. OpenAI has the full story — the link below goes straight to it.

Also reported by 1 other outlet

Read the original at openai.com →

More in AI

Codex or Claude wrote my tests — how do I actually trust them?

Short answer: don't trust them because they're green. AI writes tests that assert the code's current behavior — including the bugs.

  • Do not trust AI-generated tests as they often pass with bugs.
  • Use mutation testing to verify test effectiveness.
  • Apply mutation testing selectively to critical modules.

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