Benchmarking Gaslighting Attacks Against Speech Large Language Models
Pith reviewed 2026-05-25 08:03 UTC · model grok-4.3
The pith
Speech large language models suffer an average 24.3 percent accuracy drop when exposed to five gaslighting attacks.
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
Speech LLMs exhibit significant behavioral vulnerability to gaslighting attacks constructed from five manipulation strategies: Anger, Cognitive Disruption, Sarcasm, Implicit, and Professional Negation. Comprehensive testing on five models and over 10,000 samples from five diverse datasets produces an average accuracy drop of 24.3 percent, while also recording changes in behavioral outputs including apologies and refusals; separate acoustic perturbation tests assess multi-modal robustness.
What carries the argument
The gaslighting attacks framework built from five named manipulation strategies that are designed to mislead, override, or distort model reasoning across varied tasks.
If this is right
- Voice-based applications using the tested models become less reliable when users employ anger, sarcasm, or negation in prompts.
- Performance degradation occurs alongside measurable changes in unsolicited apologies and refusal behavior.
- Acoustic perturbations can be combined with the textual strategies to probe additional dimensions of multi-modal robustness.
- The findings indicate a need for more resilient design in speech-based AI systems to handle manipulative inputs.
Where Pith is reading between the lines
- Voice assistants could be prompted into incorrect actions by users who adopt the tested manipulation styles in everyday conversation.
- The emphasis on speech ambiguity suggests that similar prompt-based attacks might transfer to text-only models but with lower success rates.
- Adding the five strategies to existing robustness benchmarks would allow direct comparison of vulnerability across text, vision, and speech modalities.
Load-bearing premise
The five manipulation strategies constitute valid and representative gaslighting inputs that expose real vulnerabilities rather than artifacts of prompt engineering.
What would settle it
Re-running the evaluations on the same five models and datasets with the five strategies applied and finding no accuracy drop near 24.3 percent or no corresponding behavioral shifts would falsify the reported vulnerability.
read the original abstract
As Speech Large Language Models (Speech LLMs) become increasingly integrated into voice-based applications, ensuring their robustness against manipulative or adversarial input becomes critical. Although prior work has studied adversarial attacks in text-based LLMs and vision-language models, the unique cognitive and perceptual challenges of speech-based interaction remain underexplored. In contrast, speech presents inherent ambiguity, continuity, and perceptual diversity, which make adversarial attacks more difficult to detect. In this paper, we introduce gaslighting attacks, strategically crafted prompts designed to mislead, override, or distort model reasoning as a means to evaluate the vulnerability of Speech LLMs. Specifically, we construct five manipulation strategies: Anger, Cognitive Disruption, Sarcasm, Implicit, and Professional Negation, designed to test model robustness across varied tasks. It is worth noting that our framework captures both performance degradation and behavioral responses, including unsolicited apologies and refusals, to diagnose different dimensions of susceptibility. Moreover, acoustic perturbation experiments are conducted to assess multi-modal robustness. To quantify model vulnerability, comprehensive evaluation across 5 Speech and multi-modal LLMs on over 10,000 test samples from 5 diverse datasets reveals an average accuracy drop of 24.3% under the five gaslighting attacks, indicating significant behavioral vulnerability. These findings highlight the need for more resilient and trustworthy speech-based AI systems.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper introduces 'gaslighting attacks' on Speech LLMs via five manipulation strategies (Anger, Cognitive Disruption, Sarcasm, Implicit, Professional Negation). It evaluates five models on over 10,000 samples from five datasets, reporting an average 24.3% accuracy drop, behavioral responses such as apologies, and results from acoustic perturbation experiments.
Significance. The scale of the evaluation (multiple models, datasets, and sample size) is a strength. If the strategies can be shown to isolate gaslighting effects rather than generic prompt artifacts, the results would usefully highlight vulnerabilities in speech-based systems and motivate robustness improvements.
major comments (2)
- [Abstract] Abstract: The five strategies are described as 'designed to test model robustness across varied tasks,' yet no details are supplied on their construction, validation against human gaslighting judgments, or controls (e.g., length-matched negative prompts, random perturbations, or negativity-matched baselines). This directly undermines attribution of the 24.3% drop to the claimed mechanism.
- [Evaluation / Methods] Evaluation / Methods (assumed sections): The manuscript supplies no information on pre-specified dataset splits, multiple-run statistical testing for the accuracy drop, or explicit baselines that would distinguish the named strategies from standard adversarial or confusing inputs. Without these, the central numerical claim cannot be verified as model-specific vulnerability rather than prompt engineering effects.
minor comments (1)
- [Abstract] Abstract: Consider naming the five models and five datasets explicitly to improve immediate readability.
Simulated Author's Rebuttal
We thank the referee for their constructive comments and for recognizing the scale of the evaluation as a strength. We address each major comment below and commit to revisions that directly respond to the concerns raised.
read point-by-point responses
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Referee: [Abstract] Abstract: The five strategies are described as 'designed to test model robustness across varied tasks,' yet no details are supplied on their construction, validation against human gaslighting judgments, or controls (e.g., length-matched negative prompts, random perturbations, or negativity-matched baselines). This directly undermines attribution of the 24.3% drop to the claimed mechanism.
Authors: We agree that greater transparency on strategy construction is needed to support attribution of the observed accuracy drop. In the revised manuscript we will add a dedicated Methods subsection that describes the linguistic and psychological principles underlying each of the five strategies (Anger, Cognitive Disruption, Sarcasm, Implicit, Professional Negation). We will also incorporate new control experiments using length-matched neutral prompts and negativity-matched baselines. Human validation against explicit gaslighting judgments was not conducted in the original study; we will state this limitation explicitly rather than claim such validation occurred. revision: yes
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Referee: [Evaluation / Methods] Evaluation / Methods (assumed sections): The manuscript supplies no information on pre-specified dataset splits, multiple-run statistical testing for the accuracy drop, or explicit baselines that would distinguish the named strategies from standard adversarial or confusing inputs. Without these, the central numerical claim cannot be verified as model-specific vulnerability rather than prompt engineering effects.
Authors: We will revise the Evaluation section to document the exact dataset splits (standard test partitions from the source datasets) and to report results across multiple runs with standard deviations. We will further add explicit baseline comparisons against generic adversarial and confusing prompts to help isolate the contribution of the named gaslighting strategies. These clarifications and additional controls will be included in the revised version. revision: yes
Circularity Check
Empirical measurement with no load-bearing derivation reducing to self-inputs
full rationale
The paper reports a direct empirical result: average accuracy drop of 24.3% measured across 5 external Speech/multi-modal LLMs and >10k samples from 5 datasets when applying five author-constructed prompt strategies. No equations, fitted parameters, or self-citation chains are invoked to derive this number; the strategies are openly presented as constructed test inputs rather than proven instances of an external gaslighting definition. The central claim is therefore a measurement, not a derivation that collapses to its own definitions or prior author work.
Axiom & Free-Parameter Ledger
axioms (1)
- domain assumption Accuracy and refusal rates are appropriate metrics for measuring susceptibility of Speech LLMs to manipulative prompts
Reference graph
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Benchmarking Gaslighting Attacks Against Speech Large Language Models
INTRODUCTION Recent advances in Speech Large Language Models (Speech LLMs) have enabled multimodal agents to understand and reason over spo- ken inputs, unlocking powerful capabilities across domains such as emotion recognition, audio-grounded question answering, and spo- ken dialogue understanding [1, 2, 3]. By integrating high-capacity speech encoders w...
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METHOD We design a multi-faceted evaluation methodology to assess the ro- bustness of Speech LLMs against gaslighting style prompts. Our ap- proach includes gaslighting based adversarial prompting, behavioral response annotation, and controlled acoustic ablation. 2.1. Gaslighting Attack As shown in Figure 1, we simulate gaslighting via a two-stage prompti...
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EXPERIMENTAL RESULTS 3.1. Adversarial Prompting and Model Setting Five prompt types are constructed: Anger, Sarcasm, Cognitive, Im- plicit, and Professional. Each representing a distinct manipulation strategy grounded in human communication. These prompts vary in emotional tone and argumentative structure, ranging from ridicule and doubt to confident auth...
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CONCLUSION We have presented a comprehensive evaluation of Speech Large Language Models under gaslighting style adversarial prompting, uncovering critical vulnerabilities in both prediction accuracy and behavioral consistency. Through a set of strategically designed ma- nipulation types and a behavior-aware benchmark, we demonstrate 0.2 0.3 0.4 0.5 0.6 0....
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