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Rahul Gupta

3 papers indexed

openalexThe Astrophysical Journal2026-07-24

Exploring the Nature of Galactic Unassociated Sources Detected by the Fermi-LAT

F. Acero, A. Acharyya, A. Adelfio, M. Ajello, E. Aviano, L. Baldini, et al.

Abstract We investigate the nature of the unassociated sources detected by the Fermi-LAT close (∣ b ∣ < 10°) to the Galactic plane, representing 16% of all sources in the 4FGL-DR4 catalog. The bulk of these sources (referred to as soft Galactic unassociated sources, SGUs) exhi…

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arxivcs.AIcs.CRcs.CY2026-07-13

A Threshold Exceedance Framework for CBRN Uplift Evaluation in Frontier Language Models

Rahul Gupta, Abhinav Mohanty, Payal Motwani, Venkatesh Saligrama, Satyapriya Krishna, Connor Harris, et al.

As frontier language models advance, policymakers and model developers need methods for assessing whether model access materially increases a non-expert actor's ability to plan high-consequence Chemical, Biological, Radiological, or Nuclear (CBRN) misuse relative to public tools…

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arxivcs.CRcs.AI2026-06-29

Security--Fidelity Tradeoffs: The Hidden Cost of Prompt Injection Defense

Mitchell Hermon, Rahul Gupta, Weitong Ruan, Ekraam Sabir, Haohan Wang

We identify a security-fidelity tradeoff in defending LLMs against indirect prompt injection: defenses resist injected instructions largely by suppressing untrusted text, which corrupts tasks that must preserve it, such as translation and document editing. Attack-success metrics…

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