DevTools · Multi-Cloud

Cursor

Cursor runs a multi-cloud, event-driven architecture with most CPU/backend services on AWS, major GPU inference clusters on Azure plus newer GPU clouds, and specialized AI workloads on GCP, fronted by stateless gateways, queues, and GPU worker fleets for LLM inference and agents.[6][10] Workspace data and embeddings flow through turbopuffer, Pinecone, and Kafka-compatible streams, with Temporal-based orchestration for agent workflows and large multi-GPU clusters (including Fireworks AI-hosted proprietary fine-tuned models) serving code-focused LLMs.[4][6][7][8][10]

Foundation proximity: Native (own / self-hosted weights)

Foundational models & how they consume them

PrimaryCursor proprietary code models (fine-tuned frontier family)· Fireworks AI / Cursor GPU clusters · Native (own / self-hosted weights)

SecondaryClaude family· Anthropic (direct API and Azure-hosted endpoints) · Direct API

TertiaryGPT family· OpenAI (direct API and Azure OpenAI) · Direct API

Cloud & datastore

Multi-Cloudturbopuffer (multi-tenant DB for encrypted files and Merkle trees)Pinecone (vector database for documentation embeddings)Warpstream/Kafka-compatible streamingRedis/ElastiCache (caching and session state)

Compliance

end-to-end encryption of workspace filesMerkle-tree based integrity for workspace syncenterprise-grade security postureprivacy modes for code and data handling

Similar companies

Postman Replit Retool Sentry Vercel Atlassian

Head-to-head: Cursor vs Postman Cursor vs Replit Cursor vs Retool

Others that build on proprietary / self-built models

Abnormal Security Abridge Adobe AI21 Labs Aleph Alpha Ambience

Explore

More DevTools →Native (own / self-hosted weights) →More on Multi-Cloud →

FAQ

Does Cursor use a foundational AI model?

Cursor uses Cursor proprietary code models (fine-tuned frontier family), Claude family, GPT family (Native (own / self-hosted weights)).

What cloud does Cursor run on?

Cursor runs on Multi-Cloud.

What database does Cursor use?

Cursor uses turbopuffer (multi-tenant DB for encrypted files and Merkle trees), Pinecone (vector database for documentation embeddings), Warpstream/Kafka-compatible streaming, Redis/ElastiCache (caching and session state).

How close does Cursor run to the foundational model?

Cursor is Native (own / self-hosted weights) — close to the metal, so cheaper tokens and more control over outputs.

Sources

cursor.com ↗

Also on the map

proprietary / self-built models Anthropic · Claude OpenAI · GPT

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Architecture inferred from public sources · confidence medium · verify before betting on a detail.