An Efficient vLLM-Based Inference Pipeline for Unified Audio Understanding and Generation
On the map: Multimodal LLMs / vision-language models → Video understanding with MLLMs
Abstract (arXiv)
While Large Multimodal Models excel in comprehension, high-throughput inference engines lack native support for multimodal generation. This is severe in Speech Language Models, where generating multi-layered audio tokens via decoupled AR+NAR or synchronous Multi-Token Prediction (MTP) with delay-pattern interleaving conflicts with standard single-stream loops. We present a vLLM-based inference pipeline for unified speech understanding and generation. We extend autoregressive decoding to natively execute delay-pattern de-interleaving and coordinated multi-stream sampling, integrating an on-GPU acoustic decoder for end-to-end waveform synthesis. Crucially, we overcome the shared intuition that Classifier-Free Guidance (CFG) halves throughput. By co-scheduling paired conditional and unconditional requests within a continuous batch, our CFG implementation sustains 80% of non-CFG throughput, absorbing dual-request and logit merging overheads. We open-source our framework.
Key facts. No citing papers in the map yet (data through 7 Oct 2026). Placed in Video understanding with MLLMs, one of 16 directions in Multimodal LLMs / vision-language models. Builds on 30 of its 32 references that are in the map. First posted on arXiv 2 Jul 2026.
Builds on
30 of 32 references.
References · 30
- 2017Attention Is All You Needcited by 59,932
- 2025Qwen3 Technical Reportcited by 8,195
- 2023Efficient Memory Management for Large Language Model Serving with PagedAttentioncited by 5,767
- 2022Classifier-Free Diffusion Guidancecited by 5,717
- 2022Robust Speech Recognition via Large-Scale Weak Supervisioncited by 3,972
- 2023SGLang: Efficient Execution of Structured Language Model Programscited by 1,107
- 2017Natural TTS Synthesis by Conditioning WaveNet on Mel Spectrogram Predictionscited by 800
- 2023AudioLDM: Text-to-Audio Generation with Latent Diffusion Modelscited by 592
- 2021Conditional Variational Autoencoder with Adversarial Learning for End-to-End Text-to-Speechcited by 555
- 2024Moshi: a speech-text foundation model for real-time dialoguecited by 536
- 2024FlashAttention-3: Fast and Accurate Attention with Asynchrony and Low-precisioncited by 507
- 2023Simple and Controllable Music Generationcited by 480
18 more
- 2025Qwen3-Omni Technical Reportcited by 451
- 2023High-Fidelity Audio Compression with Improved RVQGANcited by 423
- 2025SmolLM2: When Smol Goes Big -- Data-Centric Training of a Small Language Modelcited by 307
- 20242 OLMo 2 Furiouscited by 302
- 2024MMAU: A Massive Multi-Task Audio Understanding and Reasoning Benchmarkcited by 281
- 2025Kimi-Audio Technical Reportcited by 210
- 2024Codec Does Matter: Exploring the Semantic Shortcoming of Codec for Audio Language Modelcited by 70
- 2024Towards Robust Speech Representation Learning for Thousands of Languagescited by 48
- 2025Understanding and Mitigating Numerical Sources of Nondeterminism in LLM Inferencecited by 47
- 2025Recent Advances in Discrete Speech Tokens: A Reviewcited by 42
- 2025Discrete Audio Tokens: More Than a Survey!cited by 37
- 2024ESPnet-Codec: Comprehensive Training and Evaluation of Neural Codecs for Audio, Music, and Speechcited by 25
- 2024Is Flash Attention Stable?cited by 10
- 2025UALM: Unified Audio Language Model for Understanding, Generation and Reasoningcited by 10
- 2025OpusLM: A Family of Open Unified Speech Language Modelscited by 9
- 2026Optimizing Conversational Quality in Spoken Dialogue Systems with Reinforcement Learning from AI Feedbackcited by 5
- 2026Bagpiper: Solving Open-Ended Audio Tasks via Rich Captionscited by 4
- 2025BSCodec: A Band-Split Neural Codec for High-Quality Universal Audio Reconstructioncited by 1
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- 2025Make Some Noise: Towards LLM audio reasoning and generation using sound tokens
- 2026TRADE: Transducer-Augmented Decoder for Speech LLM
- 2026FireRedAudio: A General-Purpose Audio Language Model with Decoupled Continuous Representations for Understanding and Generation
- 2026Beyond Transcription: Unified Audio Schema for Perception-Aware AudioLLMs
- 2025From Text to Talk: Audio-Language Model Needs Non-Autoregressive Joint Training
- 2026SPAR-K: Scheduled Periodic Alternating Early Exit for Spoken Language Models
- 2025Language Model Based Text-to-Audio Generation: Anti-Causally Aligned Collaborative Residual Transformers
- 2025MGM-Omni: Scaling Omni LLMs to Personalized Long-Horizon Speech