Simon Willison on X: “I re-ran an experiment @colin_fraser ran against GPT-4o a while back t…”

A fast, private reader for public X posts. No account, no tracking, no pop-ups.

PeekX is an independent tool and is not affiliated with, endorsed by or sponsored by X Corp. “X” and “Twitter” are trademarks of their respective owners. We only show posts that their authors made public and never access private or protected accounts. Downloaded media belongs to its creators — please respect their rights.

Username or post link

Home / @simonw / Post

Simon Willison

@simonw

I re-ran an experiment @colin_fraser ran against GPT-4o a while back to see how good it was at adding long numbers, only this time I tried Qwen 3.8 27B running locally in both reasoning and non-reasoning modes simonwillison.net/2026/Oct/4/qwe…

Oct 5, 2026, 5:19 PM UTC

115 477

Download media

Every quality X serves, straight from X's media CDN. No watermark, no wait.

OriginalBEST

#1 · Photo · 1720×1580

OriginalBEST

#2 · Photo · 1720×1530

Save & share

Turn this post into a clean image, or copy it as text or Markdown.

Open on X

Simon Willison on X: “I re-ran an experiment @colin_fraser ran against GPT-4o a while back t…” | PeekX