This brief compares SaaS and on-premise deployment models across security, speed, scalability, cost, DevOps effort, and sustainability. It explains why SaaS deployments are generally easier, more cost-effective, and more scalable, offering automatic updates, built-in MLOps, and access to the latest AI innovations. SaaS latency is shown to be comparable to on-premise deployments, while cloud infrastructure provides significantly better energy efficiency. In contrast, on-premise solutions require greater investment in hardware, staffing, maintenance, and upgrades. The document helps organizations evaluate deployment tradeoffs and choose the right model based on flexibility, cost, compliance, and operational complexity.

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