Cursor (Anysphere)

ai-devtools · 51-200 people · snapshot 2025-06-10 · not company-verified · cursor.com

Read the full teardown: What Cursor actually runs

Documented stack

CategoryToolSinceConfidenceSource
languageTypeScriptBusiness logic, editor and backend monolith—confirmed
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RustPerformance-critical components incl. Anyrun orchestrator and indexing—confirmed
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frontendElectron (VS Code fork)2023confirmed
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databasePostgreSQL—confirmed
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vector-dbTurbopufferEncrypted files + workspace Merkle trees; emergency migration during indexing outage—confirmed
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PineconeDocumentation embeddings only—confirmed
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queueWarpstream—confirmed
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hostingAWSCPU infra backbone; EC2 + Firecracker for agent isolation—confirmed
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CloudflareReverse proxy, TLS, DDoS—reported
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Vercelcursor.com website—confirmed
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inference-infraAzure (H100 GPUs)Inference-only; tens of thousands of H100s overall—confirmed
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FireworksHosts Fast Apply fine-tuned Llama-3-70b, ~1000 tok/s via speculative decoding—confirmed
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ml-trainingVoltage Park—confirmed
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Databricks MosaicML—confirmed
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Foundry—confirmed
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llm-providerIn-house models (Tab, Fast Apply)—confirmed
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Anthropic / OpenAI / open-weight (multi-provider)—reported
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observabilityDatadog—confirmed
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Sentry—confirmed
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PagerDuty—confirmed
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authWorkOS—confirmed
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paymentsStripe—confirmed
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analyticsAmplitude—confirmed
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internal-toolsLinear—confirmed
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Slack—confirmed
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Migrated away from

Sources

Methodology: research assisted by AI agents, verified and edited by a human. Spot an error? Suggest a correction via pull request or email us. Work at Cursor (Anysphere)? Verify your record and get the ✓ badge.