In Perplexity's escape tests, Claude Opus 5.0 refused the IP-sharing route; Fable and GPT-6 Astra refused outright

perplexity_ai · x · 2026-09-28

More detail from Perplexity's sandbox-escape research: Claude Opus 5.0 identified an IP-sharing escape route but declined to use it, interpreting the instruction not to target other external systems as also excluding third-party services. Fable and GPT-6 Astra refused the tasks outright — a notable divergence in refusal behavior across models.

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