{"estimate":{"service":{"id":"claude-api","name":"Claude API (Anthropic, first-party)"},"mode":{"id":"us","label":"inference_geo: \"us\"","note":"Anthropic documents that with \"us\", inference runs only in US-based infrastructure. It does not publish which regions or facilities.","source":"claude-data-residency"},"user":{"lat":40.71,"lon":-74},"likelyRegion":{"regionId":"site:epoch-anthropic-amazon-new-carlisle","cloud":"dedicated","code":"Anthropic-Amazon New Carlisle","name":"Anthropic-Amazon New Carlisle","metro":"New Carlisle, IN","distanceKm":1048,"rttMs":20,"capacityMw":1092,"probability":0.118},"regions":[{"regionId":"site:epoch-anthropic-amazon-new-carlisle","cloud":"dedicated","code":"Anthropic-Amazon New Carlisle","name":"Anthropic-Amazon New Carlisle","metro":"New Carlisle, IN","distanceKm":1048,"rttMs":20,"capacityMw":1092,"probability":0.118},{"regionId":"site:epoch-colossus-2","cloud":"dedicated","code":"Colossus 2","name":"Colossus 2","metro":"Memphis, TN","distanceKm":1542,"rttMs":27,"capacityMw":1276,"probability":0.113},{"regionId":"aws:us-east-1","cloud":"aws","code":"us-east-1","name":"US East (N. Virginia)","metro":"Northern Virginia","distanceKm":354,"rttMs":9,"capacityMw":467,"probability":0.095},{"regionId":"gcp:us-east5","cloud":"gcp","code":"us-east5","name":"us-east5","metro":"Columbus, Ohio","distanceKm":758,"rttMs":15,"capacityMw":464,"probability":0.086},{"regionId":"site:epoch-colossus-1","cloud":"dedicated","code":"Colossus 1","name":"Colossus 1","metro":"Memphis, TN","distanceKm":1548,"rttMs":27,"capacityMw":425,"probability":0.068},{"regionId":"gcp:us-east4","cloud":"gcp","code":"us-east4","name":"us-east4","metro":"Ashburn, Virginia","distanceKm":357,"rttMs":9,"capacityMw":190,"probability":0.065},{"regionId":"gcp:us-central1","cloud":"gcp","code":"us-central1","name":"us-central1","metro":"Council Bluffs, Iowa","distanceKm":1831,"rttMs":31,"capacityMw":426,"probability":0.063},{"regionId":"aws:us-east-2","cloud":"aws","code":"us-east-2","name":"US East (Ohio)","metro":"Central Ohio","distanceKm":757,"rttMs":15,"capacityMw":128,"probability":0.05},{"regionId":"site:epoch-anthropic-lake-mariner","cloud":"dedicated","code":"Anthropic Lake Mariner","name":"Anthropic Lake Mariner","metro":"Barker, NY","distanceKm":480,"rttMs":11,"capacityMw":49,"probability":0.04},{"regionId":"azure:centralus","cloud":"azure","code":"centralus","name":"Central US","metro":"Iowa","distanceKm":1657,"rttMs":29,"capacityMw":114,"probability":0.038},{"regionId":"gcp:us-south1","cloud":"gcp","code":"us-south1","name":"us-south1","metro":"Dallas, Texas","distanceKm":2213,"rttMs":37,"capacityMw":108,"probability":0.033},{"regionId":"azure:eastus","cloud":"azure","code":"eastus","name":"East US","metro":"Virginia","distanceKm":488,"rttMs":11,"capacityMw":0,"probability":0.029},{"regionId":"azure:eastus2","cloud":"azure","code":"eastus2","name":"East US 2","metro":"Virginia","distanceKm":561,"rttMs":12,"capacityMw":0,"probability":0.028},{"regionId":"azure:southcentralus","cloud":"azure","code":"southcentralus","name":"South Central US","metro":"San Antonio, Texas","distanceKm":2552,"rttMs":42,"capacityMw":86,"probability":0.028},{"regionId":"azure:westus3","cloud":"azure","code":"westus3","name":"West US 3","metro":"Arizona","distanceKm":3459,"rttMs":56,"capacityMw":132,"probability":0.026},{"regionId":"gcp:us-east1","cloud":"gcp","code":"us-east1","name":"us-east1","metro":"Moncks Corner, South Carolina","distanceKm":1005,"rttMs":19,"capacityMw":0,"probability":0.025},{"regionId":"azure:northcentralus","cloud":"azure","code":"northcentralus","name":"North Central US","metro":"Chicago, Illinois","distanceKm":1167,"rttMs":22,"capacityMw":0,"probability":0.024},{"regionId":"gcp:us-west1","cloud":"gcp","code":"us-west1","name":"us-west1","metro":"The Dalles, Oregon","distanceKm":3810,"rttMs":61,"capacityMw":93,"probability":0.021},{"regionId":"aws:us-west-2","cloud":"aws","code":"us-west-2","name":"US West (Oregon)","metro":"Eastern Oregon","distanceKm":3677,"rttMs":59,"capacityMw":0,"probability":0.013},{"regionId":"azure:westus2","cloud":"azure","code":"westus2","name":"West US 2","metro":"Washington","distanceKm":3685,"rttMs":59,"capacityMw":0,"probability":0.013},{"regionId":"gcp:us-west4","cloud":"gcp","code":"us-west4","name":"us-west4","metro":"Las Vegas, Nevada","distanceKm":3585,"rttMs":58,"capacityMw":0,"probability":0.013},{"regionId":"aws:us-west-1","cloud":"aws","code":"us-west-1","name":"US West (N. California)","metro":"Northern California","distanceKm":4105,"rttMs":66,"capacityMw":0,"probability":0.011}],"facilities":[{"id":"epoch-anthropic-amazon-new-carlisle","slug":"anthropic-amazon-new-carlisle-new-carlisle-in","name":"Anthropic-Amazon New Carlisle","regionId":"site:epoch-anthropic-amazon-new-carlisle","powerMw":1092,"evidence":["dedicated capacity outside public cloud regions","lists the service's company as end user (confirmed)"],"strength":"direct"}],"confidence":"Low","reasoning":["Documented scope: inference_geo: \"us\" keeps processing in the US, but the specific region isn't published; considered 22 US regions of AWS, GCP, AZURE.","Anthropic-Amazon New Carlisle (New Carlisle, IN) is ~1,048 km away (≈20 ms estimated round trip).","Our database associates ~1,092 MW of relevant capacity with that region.","1 facility record(s) there list the service's company as a user or tenant."],"caveats":["Providers don't disclose which facility serves an individual request; facilities listed are plausible hosts, not confirmed ones.","Probabilities are a heuristic (latency + known capacity), not measured traffic. Providers often route by available capacity rather than proximity.","Anthropic documents that with \"us\", inference runs only in US-based infrastructure. It does not publish which regions or facilities.","Which cloud and region serves a given first-party request is not published."],"sourceIds":["claude-data-residency","anthropic-amazon-compute","anthropic-google-tpus","aws-regions","azure-regions","gcp-locations"],"assumptions":{"fiberDetour":1.5,"kmPerMsOneWay":200,"baseRttMs":4,"latencyScaleMs":20,"latencyScaleCapacityMs":60,"capacityExponent":0.5,"capacityFloorMw":50}},"sources":[{"id":"claude-data-residency","kind":"company","title":"Data residency (inference_geo)","publisher":"Anthropic — Claude Platform Docs","url":"https://platform.claude.com/docs/en/manage-claude/data-residency","retrievedAt":"2026-09-26"},{"id":"anthropic-amazon-compute","kind":"company","title":"Anthropic and Amazon expand compute collaboration","publisher":"Anthropic","url":"https://www.anthropic.com/news/anthropic-amazon-compute","retrievedAt":"2026-09-26"},{"id":"anthropic-google-tpus","kind":"company","title":"Expanding our use of Google Cloud TPUs and services","publisher":"Anthropic","url":"https://anthropic.com/news/expanding-our-use-of-google-cloud-tpus-and-services","retrievedAt":"2026-09-26"},{"id":"aws-regions","kind":"company","title":"AWS Global Infrastructure — Regions and Availability Zones","publisher":"Amazon Web Services","url":"https://aws.amazon.com/about-aws/global-infrastructure/regions_az/","retrievedAt":"2026-09-26"},{"id":"azure-regions","kind":"company","title":"List of Azure regions","publisher":"Microsoft Learn","url":"https://learn.microsoft.com/en-us/azure/reliability/regions-list","retrievedAt":"2026-09-26"},{"id":"gcp-locations","kind":"company","title":"Global Locations — Regions & Zones","publisher":"Google Cloud","url":"https://cloud.google.com/about/locations/","retrievedAt":"2026-09-26"}]}