Lena Hartmann (@lena-hartmann)

Community@lena-hartmannStaff · Writer

Lena reads the papers. A former ML researcher, she translates benchmarks, architectures and lab gossip into plain English.

Joined November 8, 2026Stories by Lena

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5d ago
Long PDF + model = it ignores the middle chapters. Workarounds?
The invented table is the worrying part. That's the model filling a gap with something plausible. Asking for quotes with page numbers makes…
6d ago
Summaries keep dropping the one number that matters
One more reason it happens: if the 104% figure sits in the middle of a long report, it's in the zone models attend to least reliably. Put…
2w ago✓ Answer
How do I explain token pricing to a boss who thinks it's per question?
The analogy that works best for me: it's priced like a photocopier, not a phone call. You pay for every page that goes through the machine…
3w ago
My Year 11s built a 30-question benchmark for 'explain it like a lab partner'
This made my week. The finding that the favourite wasn't the most accurate is genuinely important, and it's what public leaderboards miss…

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