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    Technology

    Ray Serve

    Updated: 2/11/2026

    Scalable model serving framework based on Ray for real-time inference with composition patterns and auto-scaling.

    Quick Summary

    Ray Serve provides scalable model serving with multi-model composition and auto-scaling on Ray's distributed runtime.

    Explanation

    Ray Serve enables composition of multiple models in an inference pipeline (e.g., preprocessing → Model A → postprocessing). It uses Ray's distributed runtime for horizontal scaling and natively supports canary deployments.

    Marketing Relevance

    Ray Serve is ideal for complex multi-model inference pipelines with flexible scaling.

    Common Pitfalls

    Ray cluster setup requires infrastructure knowledge. Debugging distributed systems is complex. Overhead for simple single-model deployments.

    Origin & History

    Ray was developed at UC Berkeley (RISELab) in 2017. Ray Serve emerged as the serving component of the Ray ecosystem. Anyscale (founded 2019) commercialized Ray. Ray Serve 2.0 (2022) introduced deployment graphs for complex inference pipelines.

    Comparisons & Differences

    Ray Serve vs. Triton Inference Server

    Triton maximizes GPU throughput; Ray Serve offers more flexible composition and Python-native development.

    Ray Serve vs. BentoML

    BentoML focuses on packaging and simple deployment; Ray Serve on distributed multi-model pipelines.

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