1 min lesson
Multi-cloud: when the operational tax is worth it
Use "Multi-cloud: when the operational tax is worth it" to tell the cases apart, then choose a response for each one.
Step 1 of 2
Multi-cloud: when the operational tax is worth ita second provider is a big commitment
Multi-region on one cloud handles most resilience needs. A second cloud provider doubles your IAM models, networking primitives and on-call surface and you lose the deep integrations that make one cloud productive. Reach for it only with a concrete driver.
A specific resource is only available or affordable elsewhere, such as GPU capacity for inference at a price or scale your primary cloud can't meet.
A customer or regulatory requirement mandates provider diversity.
Provider-level outage risk is genuinely existential to the business.
You just want "resilience". Multi-region on one cloud already gives you that for far less.
You'd run a lowest-common-denominator stack and forfeit managed services to stay portable.
When asked "would you go multi-cloud?", resist the heroic yes. The senior answer is: "Multi-region on AWS first, since it covers latency and resilience. I'd add a second provider only for a concrete driver like GPU supply for inference and I'd scope it to that workload rather than mirroring the whole platform." Scoping the second provider to one named workload keeps its on-call and IAM cost inside that workload.