gpt-6IMAGE

GPT-6 Astra cracks an 1809 cipher from one image and a partial key

Given a single image, a partial key and 1,300 handwritten symbols, GPT-6 Astra worked backwards and built its own solver to decrypt the entire 1809 military message.

nordin.eth

@nordin_ethArchived 2026.10.02Originally posted 2026.10.01

GPT-6 Astra cracks an 1809 cipher from one image and a partial key (image 1 of 2)

GPT-6 Astra cracks an 1809 cipher from one image and a partial key (image 2 of 2)

nordin.eth @nordin_ethOriginally posted 2026.10.01

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Someone in 1809 really wrote a military message in cipher thinking this thing was staying secret forever. 217 years later GPT-6 Astra gets one image, a partial key and 1,300 handwritten symbols… then starts working backwards and builds its own solver to crack the whole thing. Two centuries of secrecy cooked by one prompt.

x.com/nordin_eth/status/2105648425362407499Archived 2026.10.02 10:05