GPT-6 Astra Reportedly Cracks 217-Year-Old Napoleonic Cipher

A model codenamed GPT-6 Astra has reportedly deciphered a 217-year-old Napoleonic military cipher, restoring an 1809 letter to one of Napoleon's generals, with a demo showing it cracked in about six hours from just an image and a goal.

2026-10-01 ~ 2026-10-01 · 2 related posts

• GPT-6 Astra cracks 217-year-old cipher to Napoleon's general in 6 hours — arthurcolle · 2026-10-01
• Polymarket claims GPT-6 Astra cracked a 217-year-old Napoleonic military cipher — Polymarket · 2026-10-01