Collaboration · Multi-Cloud
Slack
Slack’s core production stack runs primarily on AWS with a cellular architecture across availability zones, Vitess‑sharded MySQL storage, stateful real‑time messaging services, and global edge regions, while its AI serving stack has evolved into a multi‑cloud setup spanning AWS Bedrock and Google Cloud Vertex AI.[3][5][10][11][4] Slack AI is integrated as an application layer atop this core messaging infrastructure, with strict data‑segregation and privacy controls rather than being a foundational replacement of Slack’s existing backend.[9][4]
Foundation proximity: Cloud-hosted (Bedrock/Vertex/Azure)
Foundational models & how they consume them
PrimaryClaude· AWS Bedrock · Cloud-hosted (Bedrock/Vertex/Azure)
SecondaryAnthropic Claude (managed via Amazon SageMaker, legacy phase)· AWS · Cloud-hosted (Bedrock/Vertex/Azure)
TertiaryPaLM / Gemini family (large language models for Slack AI features)· Google Cloud Vertex AI · Cloud-hosted (Bedrock/Vertex/Azure)
Cloud & datastore
Multi-CloudMySQL (Vitess-managed, sharded keyspaces)[10][18]Redis (caching, real-time pub/sub)[8][15]Kafka (event streaming / persistence pipeline)[6][15]PostgreSQL (some services / ancillary data)[6]Elasticsearch or similar search index for messages/search[8][20]Snowflake (analytics / BI)[13]Hive + Presto on S3 (data lake / internal analytics)[13]Compliance
SOC 2 (implied by enterprise SaaS posture and Slack AI privacy/security claims)[9]ISO 27001 (commonly referenced in Slack security/compliance materials, inferred)[9]Data residency controls via region- and AZ-scoped Vitess clusters and cellular architecture[10][11]Similar companies
MiroOthers that build on Anthropic · Claude
AirtableAmplitudeAnthropicBlockBoxBrexExplore
FAQ
Does Slack use a foundational AI model?
Slack uses Claude, Anthropic Claude (managed via Amazon SageMaker, legacy phase), PaLM / Gemini family (large language models for Slack AI features) (Cloud-hosted (Bedrock/Vertex/Azure)).
What cloud does Slack run on?
Slack runs on Multi-Cloud.
What database does Slack use?
Slack uses MySQL (Vitess-managed, sharded keyspaces)[10][18], Redis (caching, real-time pub/sub)[8][15], Kafka (event streaming / persistence pipeline)[6][15], PostgreSQL (some services / ancillary data)[6], Elasticsearch or similar search index for messages/search[8][20], Snowflake (analytics / BI)[13], Hive + Presto on S3 (data lake / internal analytics)[13].
How close does Slack run to the foundational model?
Slack is Cloud-hosted (Bedrock/Vertex/Azure) — further out, trading control for convenience.
Sources
slack.com ↗Also on the map
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Architecture inferred from public sources · confidence medium · verify before betting on a detail.