Architecture comparison

Best Buy vs Walmart

Best Buy runs closer to the foundational model (Cloud-hosted (Bedrock/Vertex/Azure)) than Walmart (Off the LLM map (in-house non-LLM ML)). No shared foundational model — different bets.

Best Buy

Retail

Proximity

Cloud-hosted (Bedrock/Vertex/Azure)

Models

Google · Gemini

Cloud · datastore

GCPownMySQL

Compliance

SOC 2PCI DSS

Architecture

Retailer using Google Cloud Gemini for support + shopping assistants over its catalog.

Walmart

Retail

Proximity

Off the LLM map (in-house non-LLM ML)

Models

—

Cloud · datastore

HybridApache KafkaSpark StreamingStormHDFSNoSQL databasesCassandra

Compliance

TLS/HTTPSenterprise network segmentationmulti-cloud container orchestration controlsconfiguration management/drift control

Architecture

Walmart’s production architecture is hybrid and multi-cloud: public-cloud workloads run across Azure and Google Cloud, while core infrastructure and brokers remain within Walmart-controlled private cloud environments.[1][2][7][10][15] The platform is heavily event-driven and containerized, with Kafka as a central backbone and WCNP/Kubernetes used for consumer workloads across clouds.[1][4]

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