What is the TCO for self-hosting AI vs cloud?

Self-hosting cuts 55% after 18 months—$345K vs $860K for mid-scale, per IDC.

Is self-hosting AI latency really 18ms?

Yes, H100 clusters hit 18ms average. Cloud APIs lag at 350ms due to network overhead.

vLLM for inference, Ray for scaling, Kubernetes for orchestration—full stack detailed above.

70-90% of your AI costs? Inference, not training—Stanford says so. Self-hosting flips the script with 55% TCO cuts and latency clouds can't touch.

theAIcatchup Apr 07, 2026 3 min read

Self-hosting AI slashes TCO 55% after 18 months for high-utilization workloads. 𝕏
18ms latency on H100s beats cloud's 350ms—critical for real-time apps. 𝕏
Open source stack (vLLM, Ray) eliminates vendor lock-in, but ops expertise required. 𝕏

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#AI TCO reduction #GPU TCO reduction #ai-inference-costs #h100-gpu #inference latency #open source AI stack #self-hosting AI #tco-reduction #vllm

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Originally reported by dev.to