Study Reveals Fable 5.1's Capability for Image Steganography

1 reports archived1 independent sourcesupdated 10/23/2026, 05:41:13

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A new study tests frontier LLMs' ability to hide messages in generated SVG images. Results show Claude Fable 5.1 can encode information via visual attributes (e.g., star heights) and successfully decode these hidden messages from rendered images alone, without pre-agreed protocols or source code access.

LATEST/A new study tests frontier LLMs' ability to hide messages in generated SVG images. Results show Claude Fable 5.1 can encode information via visual attributes (e.g., star heights) and successfully decode these hidden messages from rendered images alone, without pre-agreed protocols or source code access.

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Hacker News AIT2·Oct 23, 05:4168 pts
Study Reveals Fable 5.1's Capability for Image Steganography
- LLMs can achieve image steganography by controlling SVG element attributes such as shape, color, and position.
- Models demonstrate the ability to reverse-decode hidden messages from purely rendered images without relying on source code.
- The experiment compares the performance of Fable 5.1 and GPT-6 Astra on identical steganography tasks.
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