When choosing between Kubernetes and serverless for a new application, consider these key factors:

1. Application Complexity:
   • Kubernetes: Great for complex applications with many services and specific needs. It gives you control over your environment but requires more setup and management.
   • Serverless: Best for simpler applications or small tasks. It handles the infrastructure for you and is good for event-driven applications.
2. Scalability:
   • Kubernetes: Can automatically adjust to handle more traffic, but you need to configure it. It’s good for applications with steady or predictable traffic.
   • Serverless: Automatically scales up or down based on demand. It’s ideal if your traffic varies a lot or is unpredictable.
3. Cost:
   • Kubernetes: Often has fixed costs based on the resources you set up, which might be expensive if your usage is low or varies.
   • Serverless: You pay only for what you use, which can be cheaper if your usage is variable or low.
4. Management:
   • Kubernetes: Requires more effort to manage, including updates and security. It’s flexible but needs more maintenance.
   • Serverless: Less management needed, as the provider takes care of scaling and infrastructure. It lets you focus on coding.
5. Performance:
   • Kubernetes: Offers steady performance and lower latency for long-running tasks.
   • Serverless: May have some delays when starting up, but is good for short, quick tasks.

Choose Kubernetes for more control and complex needs, and serverless for ease and cost-efficiency with simpler tasks.