"What makes this impressive isn't actually the codebreaking, but that Astra completed the entire multi-modal workflow in ~6 hours from a single image and goal."
Re:GPT-6 Astra cracks 217-year-old Napoleonic code in six hours
by Isamu on Monday October 05, 2026 @02:10PM
(#49968308)
It’s an image of ink-on-paper cursive handwriting, with what looks like markings added during the original decryption to keep track of where they were in the process.
So image to text, then a brute force attack on a Napoleonic era cypher.
"What makes this impressive isn't actually the codebreaking, but that Astra completed the entire multi-modal workflow in ~6 hours from a single image and goal."
So image to text, then a brute force attack on a Napoleonic era cypher.
At least cut everything from the ? onwards.
https://carter.church/writeups/the-letter-to-marmont/
Glad the original blog post was linked in the comments here.