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VoiceBench: Benchmarking LLM-Based Voice Assistants

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28 Pith papers citing it
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abstract

Building on the success of large language models (LLMs), recent advancements such as GPT-4o have enabled real-time speech interactions through LLM-based voice assistants, offering a significantly improved user experience compared to traditional text-based interactions. However, the absence of benchmarks designed to evaluate these speech interaction capabilities has hindered progress of LLM-based voice assistants development. Current evaluations focus primarily on automatic speech recognition (ASR) or general knowledge evaluation with clean speeches, neglecting the more intricate, real-world scenarios that involve diverse speaker characteristics, environmental and content factors. To address this, we introduce VoiceBench, the first benchmark designed to provide a multi-faceted evaluation of LLM-based voice assistants. VoiceBench also includes both real and synthetic spoken instructions that incorporate the above three key real-world variations. Extensive experiments reveal the limitations of current LLM-based voice assistant models and offer valuable insights for future research and development in this field.

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2026 21 2025 7

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representative citing papers

Benign Fine-Tuning Breaks Safety Alignment in Audio LLMs

cs.CR · 2026-04-17 · conditional · novelty 8.0

Benign fine-tuning on audio data breaks safety alignment in Audio LLMs by raising jailbreak success rates up to 87%, with the dominant risk axis depending on model architecture and embedding proximity to harmful content.

FlexiSLM: A Dynamic and Controllable Frame Rate Spoken Language Model

cs.SD · 2026-06-30 · unverdicted · novelty 7.0

FlexiSLM is the first spoken language model supporting dynamic and controllable frame rates on speech input and output, outperforming fixed-rate 7B models at high quality and enabling faster inference at lower rates like 6.25 Hz.

EVA-Bench: A New End-to-end Framework for Evaluating Voice Agents

cs.SD · 2026-05-13 · unverdicted · novelty 7.0

EVA-Bench supplies a simulation engine for bot-to-bot voice dialogues plus two composite metrics (EVA-A for accuracy, EVA-X for experience) evaluated on 213 enterprise scenarios, showing no tested system exceeds 0.5 on both pass@1 scores.

Liberating LLM Capabilities in Full-Duplex Speech Models

cs.CL · 2026-05-04 · unverdicted · novelty 7.0

LWS is a text-first paradigm for full-duplex speech LLMs that treats visible writing as a primary output channel alongside audio input and spoken response, implemented via token schema and synthetic per-second annotations.

Benchmarking Gaslighting Attacks Against Speech Large Language Models

cs.CL · 2025-09-24 · unverdicted · novelty 6.0

Gaslighting attacks using Anger, Cognitive Disruption, Sarcasm, Implicit, and Professional Negation strategies cause a 24.3% average accuracy drop in Speech LLMs while also triggering behavioral changes like apologies and refusals.

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