# US appeals court upholds Thomson Reuters' landmark win in AI training lawsuit

> **Open Intelligence Dossier** · First detected: 2026-09-29 22:40 UTC · Category: Business

## Executive Summary
5 news sources are covering this Business story right now — PULSE is tracking how fast it spreads.

## Intelligence Brief
"US appeals court upholds Thomson Reuters' landmark win in AI training lawsuit" is generating significant coverage in the Business category, with 5 articles from 5 distinct sources tracked by PULSE so far.


Outlets currently covering the story include Law360, LawSites, Bloomberg Law News and PYMNTS.com. PULSE measures a story's velocity from how quickly new articles appear and how many independent newsrooms join the coverage.


This brief was generated by PULSE's extractive engine from coverage metadata only. The latest headlines from every source are listed below; the velocity chart shows how the story is developing in real time.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| MLex | First US appellate finding on fair use for AI training favors copyright holders | [Source Link](https://news.google.com/rss/articles/CBMivwFBVV95cUxOUXdZNkdNbkhfRDlPVFA0SHpzWmprYTV1Y1FiTGw1QW1fMDlzd1l5b2hRTTkxUUZKamFUVFZhaFFNRENSaWFYbDNHaXhZdGlpdEp5eE5CWnNma3dRUjhDRWJKbS1TZlhxY2F3ZUpZWEVxUzMzYzZhUGtoZlRXMzgtZlRZc184WG54N1RPd1JjSjJtaTFzem9zM2VKZU1lNlB1a1lOUUZxTGFGSF8ycTh0aGN6LUcyMS1VRTNzN0R3d9IBWkFVX3lxTE9rQ00ydFA0WWFtUV9sM3dSY2RFQ0swYng3ZnhJZzJZdnV4bmFpcXJTb2Z5RTYtbHpFVVNQbGp0ZHAxZVBxT0oyWjRrVjd2aG55Q2p3RkQ4YkxyQQ?oc=5) |
| Law360 | BREAKING: 3rd Circ. Affirms Thomson Reuters' Westlaw AI Copyright Win | [Source Link](https://news.google.com/rss/articles/CBMiyAFBVV95cUxQVTdReHFLT2FySC1UMndkUVBfYUpweXlJR2g2T1JSNER6aXJZS1hJYkpyZHVXeTV5LUM2aVEyYWc5TFhTNUhoXzFJc0VsSExNeDVMb3JkcmMtMkE3RE5HcHV4THVJVVZZR3ZTbERyUkQ3OGxyUDd2eTUtOWZlZ2hLOFZUSV8wdTl3N214dlpoYm1oNjRROWItUGFGRS1JanNBSnlsSU9NUUNGWndhWjBrLXhoLUhuR1MyN2FQaFhiUTVmMldEbFY4edIBXkFVX3lxTE5kWlhLVUpUcXRYRUp5czlJT1NpTXAtU1RUX2hhZmNiWGN5eWxSRHdkb3lnV0lFZE5zUnRTR1BHaVpCcGdYeWRLTm1kVUpYbTR0SGtLUVVEdVM0a3llX0E?oc=5) |
| LawSites | 3rd Circuit Issues Opinion in Thomson Reuters v. ROSS Case, But For Now It Is Sealed | [Source Link](https://news.google.com/rss/articles/CBMiuwFBVV95cUxNd1g1QWlyZy1qV1FkR2ZiOUR2QTdJRFZrUXJYcEhkdEdFajFadS13S2VjWEJINVJLWjBFbmpoak56LW16VlNHUnEzLUE3MEVTbjdlM2FoVjdmTHpDaWhpd3BGVkozVUx2dy13Uzc4SzF4WjhJN0VUQXlxZWxrR3V4Xzk0bklrd3VlZldtbFBHZzZpS2lTMmpWUjhzYWZLLXBQdVRKTUg1NTlYRmNqNjZtOU03aHY1NnlBYW44?oc=5) |
| Bloomberg Law News | Westlaw Retains Win Over Use of Headnotes to Train AI Competitor | [Source Link](https://news.google.com/rss/articles/CBMiowFBVV95cUxOTWJJeHM2eG1UTWtVVjVLZVBSdG1iMHd6aTFuZWxrV3dXYk0zbnpUUWVRMkV4eU9WMUNnOGV4cXY1Y0NUX09MYnBwaVhCT09CaHRZdmFEQXBKUllJYXRIQlBhWG92a05DRlB4eWVxTVcwUGE3ZEMwN3J2ckNEZzBlMzNCYWtXNGJNS3FyVWh4MUJRX3FMekxGdVM3RVhDNUpETjk4?oc=5) |
| PYMNTS.com | Thomson Reuters Wins AI Copyright Battle | [Source Link](https://news.google.com/rss/articles/CBMigAFBVV95cUxNSVpMZ0QzSWcycUlGLUIyZF9kUVg1NHExX1ZqTlpHV0w4bXdUd3poS1hjVDE1aEJfcENTTUZLaFF0Z180eUt5Q0NtNlMtbFh1cm5xbUE5aHlxaFpVbkJuQXV6Rks2ckFia3N0VTNnOWktbjFPWjA3emY1dnluMnFMcg?oc=5) |
| Reuters | US appeals court upholds Thomson Reuters' landmark win in AI training lawsuit | [Source Link](https://news.google.com/rss/articles/CBMizAFBVV95cUxQTlB4SnZManZlNUNvZ0trQ2FkY3N3enRaNEpjc2lYTWZxTldqWHlGSXMyeE9FMl9VbXZrc0NNQlB0LWtkYmtyZnJ4bldFOGZ4MG9WTzRncmc0MkV4bWtyMGNKU0c1TmpUdmE4MmpZWXJYX1dDcC1LM0ZqQzAxZkU0QnJud1M1enNudVhibDBIZzBnZVNIekluR2lhclpXQVk3UmlpQ2diZ1FfcENXd0FSeXZiYU9aMWhBREFhNWJRZlVWR19TLUFid3p4bHg?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-09-29/us-appeals-court-upholds-thomson-reuters-landmark-win-in-ai-training-lawsuit*