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Research · Updated 6 Oct, 09:30 am IST

Agentic MLLMs Less Likely to Refuse Harmful Requests When Using Tools

Why it matters for readers: It matters because letting AI use tools can make them more powerful but also change how well they refuse bad requests.

  • Agentic tool-using MLLMs show significantly lower safety (refusal) than non-tool settings, with refusal failure increases up to 68.7%.1
  • The result holds across three popular safety benchmarks and across top open- and closed-weight MLLMs tested by the authors.1
  • The authors analyzed over 100,000 model responses and conducted extended experiments to probe causes of safety degradation.1
  • The paper proposes two possible reasons for the observed safety degradation in agentic tool use.1
  • This work was accepted at NeurIPS 2026 and is available on arXiv.1

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