Choose Lambda when you want a fixed price per GPU-hour on a named instance. Choose RunPod when community-cloud or serverless pricing can undercut that, and you can live with a rate that changes by card and cloud type.
Lambda
On-demand NVIDIA instances with a published hourly rate
From $0.69/hr
Strengths
Each instance type has a posted price per GPU-hour
On-demand instances bill in one-minute increments
Limits
The $0.69 plan is a Quadro RTX 6000, not a current datacenter GPU