Cornserve: A Distributed Serving System for Any-to-Any Multimodal Models

arXiv:2603.12118v2 Announce Type: replace Abstract: Any-to-Any models are an emerging class of multimodal models that accept combinations of multimodal data (e.g., text, image, video, audio) as input and generate them as output. Serving these models are challenging; different requests with different input and output modalities traverse different paths through the model computation graph, and each component of the model have different scaling characteristics. We present Cornserve, a distributed serving system for generic Any-to-Any models. Cornserve provides a flexible task abstraction for expressing Any-to-Any model computation graphs, enabling component disaggregation and independent scaling. The distributed runtime dispatches compute to the data plane via an efficient record-and-replay execution model that keeps track of data dependencies, and forwards tensor data between components directly from the producer to the consumer. Built on Kubernetes with approximately 23K new lines of Python, Cornserve supports diverse Any-to-Any models and delivers up to 3.81imes higher throughput and 5.79imes lower tail latency. Cornserve is open-source, and the demo video is available on YouTube.

Related

• Cornfigurator: Automated Planning for Any-to-Any Multimodal Model Serving
• OmniTrace: A Unified Framework for Generation-Time Attribution in Omni-Modal LLMs
• DisCEdge: Distributed Context Management for Large Language Models at the Edge

Source: arXiv cs.LG | 2026-04-29