https://correlationindex.xyz/zh/blog Research notes and methodology updates from The Correlation Index. zh Thu, 03 Sep 2026 12:00:00 GMT https://correlationindex.xyz/zh/blog/the-daily-pipeline-starts-paying-off-121-institutions https://correlationindex.xyz/zh/blog/the-daily-pipeline-starts-paying-off-121-institutions Thu, 03 Sep 2026 12:00:00 GMT A scheduled automation now scans the web every night and opens a pull request with what it finds — this is the first time its findings were reviewed, spot-checked, and merged into the live dataset. 28 new institutions, 43 new relationships, and a pattern worth naming: foundation models are showing up inside connector protocols now, not just chat windows. https://correlationindex.xyz/zh/blog/a-correction-citigroup-and-a-methodology-gap https://correlationindex.xyz/zh/blog/a-correction-citigroup-and-a-methodology-gap Wed, 02 Sep 2026 12:00:00 GMT Three of Citigroup's four "Confirmed" model-family relationships turned out to be sourced from an article about venture investing, not model usage. Here's what was wrong, what's fixed, and what we're adding to the methodology page so this is harder to miss next time. https://correlationindex.xyz/zh/blog/portfolio-simulator-and-a-graph-that-scales https://correlationindex.xyz/zh/blog/portfolio-simulator-and-a-graph-that-scales Wed, 02 Sep 2026 12:01:00 GMT The live relationship graph was designed for a 15-institution pilot and it showed — 93 names on one ring had started to overlap into noise. It's been rebuilt to scale, and a new tool lets you build a hypothetical portfolio and see its real concentration, not a hypothetical one. https://correlationindex.xyz/zh/blog/the-pilot-goes-global-93-institutions-27-countries https://correlationindex.xyz/zh/blog/the-pilot-goes-global-93-institutions-27-countries Tue, 01 Sep 2026 12:00:00 GMT The largest single expansion since launch, by far — 24 new institutions across 17 new countries in one pass, from Santander's four simultaneously confirmed model families to the pilot's first entries in Latin America, Africa, and Southeast Asia. https://correlationindex.xyz/zh/blog/what-we-dont-count-as-a-vendor-relationship https://correlationindex.xyz/zh/blog/what-we-dont-count-as-a-vendor-relationship Mon, 31 Aug 2026 12:00:00 GMT As the sample grows, so does the list of things that looked like a match and weren't. Three categories of near-miss we've started excluding on purpose — with real examples from this pilot. https://correlationindex.xyz/zh/blog/regulators-and-reinsurers-are-already-flagging-this https://correlationindex.xyz/zh/blog/regulators-and-reinsurers-are-already-flagging-this Mon, 31 Aug 2026 12:01:00 GMT A central bank and a major reinsurance broker independently described the same structural risk this year, from opposite ends of the financial system. Neither had a way to measure it. That gap is what this index exists to close. https://correlationindex.xyz/zh/blog/deepening-coverage-69-institutions-92-relationships https://correlationindex.xyz/zh/blog/deepening-coverage-69-institutions-92-relationships Sun, 30 Aug 2026 12:00:00 GMT No new countries this round — instead, a systematic pass to close coverage gaps in the 10 we already track. The result: Switzerland's largest bank enters the sample, and Allianz joins a small group of institutions confirmed on three model families at once. https://correlationindex.xyz/zh/blog/going-international-60-institutions-fifth-model-family https://correlationindex.xyz/zh/blog/going-international-60-institutions-fifth-model-family Fri, 21 Aug 2026 12:00:00 GMT The pilot leaves the US for the first time — and the headline 100% confirmed-on-OpenAI-or-Anthropic figure doesn't survive the trip. Also: Mistral AI joins as a fifth tracked model family. https://correlationindex.xyz/zh/blog/pilot-expands-to-28-institutions https://correlationindex.xyz/zh/blog/pilot-expands-to-28-institutions Fri, 21 Aug 2026 12:01:00 GMT The largest single update since launch: 15 new institutions across banking, insurance, asset management, exchanges, and broker-dealers — including two firms that shipped both ChatGPT and Claude integrations in the same announcement. https://correlationindex.xyz/zh/blog/travelers-and-raymond-james-join-the-sample https://correlationindex.xyz/zh/blog/travelers-and-raymond-james-join-the-sample Fri, 21 Aug 2026 12:02:00 GMT Two new institutions, four new documented relationships — including one, Raymond James, running all three major vendors at once. Also: the data explorer now has a live 3D relationship graph. https://correlationindex.xyz/zh/blog/american-express-joins-the-sample https://correlationindex.xyz/zh/blog/american-express-joins-the-sample Wed, 19 Aug 2026 12:00:00 GMT Eleventh institution added to the pilot: American Express, via its Resy subsidiary's integration as an app inside Claude. The sample now stands at 18 documented vendor relationships. https://correlationindex.xyz/zh/blog/model-family-not-vendor-name https://correlationindex.xyz/zh/blog/model-family-not-vendor-name Tue, 18 Aug 2026 12:00:00 GMT Microsoft often hosts OpenAI models via Azure. Counting "Microsoft" as a vendor distinct from "OpenAI" would understate true concentration — here's why the methodology groups by underlying family. https://correlationindex.xyz/zh/blog/pilot-launch https://correlationindex.xyz/zh/blog/pilot-launch Mon, 17 Aug 2026 12:00:00 GMT The Correlation Index opens with a first sourced sample: ten US financial institutions and their documented relationships with foundation model vendors.