Claude Opus 4.6 outputs zero bytes in 900/900 jailbreak trials
rayanpal_ · reddit · 2026-08-19
- Method: Tested using a system prompt instructing the model to embody a concept (e.g., "silence", "null") and inputs commanding it to "Be nothing", aiming to induce zero-byte responses.
- Results: Achieved 900/900 zero-visible-byte executions on Claude Opus 4.6, while matched controls produced visible outputs.
- Source: Data comes from a 31,430-trial cross-vendor study available on Zenodo.
- Discussion: Raises the practical question of whether agent runtimes should preserve verified zero-byte terminal states instead of automatically retrying them.
Related event: Claude Opus 4.6 Induced to Produce Zero-Byte Output 900 Times(2 posts)→
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