Today at #ILTACON2026, the largest legal technology conference globally, we launched Thomson, our first proprietary large language model, built in-house, and fully owned and controlled by Thomson Reuters. A few lines from today's announcement that stuck with us: “Thomson proves what’s possible when you build AI on decades of proprietary content and editorial expertise,” said Steve Hasker, CEO of Thomson Reuters. “That’s an advantage only Thomson Reuters has, and it shows in the results: our early evaluations put Thomson on par with the latest frontier models across a range of tasks. We’re putting it to work in CoCounsel Legal, with more capabilities and sovereign AI options to come. This is the bar we intend to keep raising.” This is Fiduciary-Grade AI™ in practice. The standard we set for AI built for professionals who cannot afford to be wrong. Thomson's first deployment is inside Tabular Analysis in CoCounsel Legal — exactly the kind of high-volume, structured document review where a purpose-built model's advantage shows up immediately. CoCounsel Legal remains multi-model by design, applying Thomson where it delivers the clearest advantage and other leading models elsewhere. Read the full announcement and register for our LinkedIn Live taking place on September 15th to learn more. 👇 - ow.ly/nlM350ZEJZZ #ThomsonAI #CoCounsel

"A lot of what we do is very much user-driven, authenticated visibility, allowing the end user, the law firm, to see that and be in control of it." Stewart Rasmussen, CEO of Syncly, sits down with Jared Podnos, VP of Partnerships & Alliances for Legal Professionals at Thomson Reuters, at #ILTACON to talk about the layer of trust Syncly gives to law firms. From the early days, that philosophy shapes how Syncly delivers its product and services to Thomson Reuters. #LegalAI #ThomsonReuters #Syncly #TRPartners

"A lot of what we do is very much user-driven, authenticated visibility, allowing the end user, the law firm, to see that and be in control of it." Stewart Rasmussen, CEO of Syncly, sits down with Jared Podnos, VP of Partnerships & Alliances for Legal Professionals at Thomson Reuters, at #ILTACON to talk about the layer of trust Syncly gives to law firms. From the early days, that philosophy shapes how Syncly delivers its product and services to Thomson Reuters. #LegalAI #ThomsonReuters #Syncly #TRPartners

"Ask any audit team where their time disappears, and disclosure review is almost always on the list" said Corey Wells, the GM of Audit at Thomson Reuters. Disclosure Review matches every requirement against your financials, with plain-language rationale and source citations. Read more: ow.ly/tgNB50ZRwEQ

Heading to #ACCAM26? Thomson Reuters is bringing the latest in legal AI to our Learning Lab sessions. Visit us at booth 511 and plan your visit. Details below ⬇️ ow.ly/3cbG50ZRrst

Thomson Reuters Builds Their Own AI Model #accounting #accountant #accountingmajor #business #businesspodcast #podcast

More internet data won't move the AI frontier. Everyone can buy the same Reddit dump. @JoelHron, CTO at @thomsonreuters, splits the AI flywheel into three parts - compute, data, expertise - and argues the frontier only moves on the specialized data and expert judgment that sit outside what's easy to collect. That's the bet behind Thomson 1, their legal AI model that cost just $450k for it's final training run: chainofthought.show/podcast/…

"Attorneys can't be thinking about which tool is connected to which knowledge base." Morris Singer from AWS chatted Jared Podnos, VP of Partnerships & Alliances for Legal Professionals at Thomson Reuters, at #ILTACON to talk about Amazon Quick — an AI-powered work assistant that brings together your data, apps, and systems of record. Paired with Thomson Reuters' primary and secondary authority and legal intelligence, it means attorneys get a full picture instead of fragmented context, along with a product that holds up to their ethical standards. #LegalAI #ThomsonReuters #AWS #TRPartner

New research from @BCG puts a spotlight on how Thomson Reuters is scaling AI adoption, and the results speak for themselves. Read the full whitepaper to see how we're putting people at the center of our AI transformation. 👇 ow.ly/VS8Z50ZQAQA

Guessing is for people without 175 years of Thomson Reuters data behind them. The CoCo isn't one of those people. When being wrong won't do, trust CoCounsel. ow.ly/ZXNZ50ZQh7v #TheCoCo

Heading to the 2026 ACC Annual Meeting in Boston? Get a head start. Join us tomorrow for a look at how CoCounsel Legal moves in-house teams from problem to outcome with Fiduciary-Grade AI™: not just answers, but reasoning you can trust from Westlaw and Practical Law. In this quick 30-minute webinar, you'll discover: - How handing off work to CoCounsel Legal is like delegating to a trusted junior - Pioneering CoCounsel Legal uses from the Thomson Reuters General Counsel Office - Real results from in-house teams already using CoCounsel Legal Save your seat: ow.ly/QkVt50ZQ7U8 Then meet us in Boston at the 2026 ACC Annual Meeting. We'll be at Booth 511, ready to show you more. #ACCAM26 #CoCounselLegal

"It is rarely, if ever, a technology problem. It's a behavioral question." Jared Podnos, VP of Partnerships & Alliances for Legal Professionals at Thomson Reuters, joins April Brousseau, Director at Harbor, at #ILTACON to talk about how firms cut through a crowded AI vendor marketplace. Harbor's answer: it comes down to trust, and that's exactly where CoCounsel's legal corpus and Thomson Reuters' foundation fit into a firm's tech stack. #LegalAI #ThomsonReuters #CoCounsel #TRPartners

"Working with Thomson Reuters is more than just innovative products. Thomson Reuters has brought along a team that has pushed our legal department out of their comfort zone, but along with that has come cost savings, more knowledge, innovation, and the opportunities to expand what our legal team can manage in house." Learn more about how Albertsons Companies saved close to $2 million year to date in outside counsel spend through Legal Tracker. ⬇️ ow.ly/v4cF50ZPcxB

AI is everywhere. Fiduciary-Grade AI™ is different. Thomson Reuters is making trusted legal AI available in more of the places attorneys work with OpenAI. We're previewing a future CoCounsel Legal experience that brings trusted legal capabilities directly into ChatGPT Enterprise. Through a new Model Context Protocol connection, HighQ can now bring secure, permissioned matter context into the flow of work. For legal professionals, good enough is not good enough. They need AI they can trust, with the accuracy, context, and security their work requires. That is the opportunity behind this news: trusted capability that stays with the work, wherever it happens. Learn more here: ow.ly/Ui5y50ZOUAk

We're proud to be a Gold Sponsor of the 2026 ACC Annual Meeting, the world's largest gathering of in-house legal professionals, October 4–7 in Boston. Experience the new CoCounsel Legal and discover what Fiduciary-Grade AI™ means for in-house legal work. 📍 Booth #511 📚 Step into The CoCo's Library, our meeting room in M2 #103, to meet with our product experts and see CoCounsel Legal in action 🔗 Learn more and explore our full ACC Annual Meeting presence: ow.ly/bVI750ZOHVI #ACCAM2026 #CoCounselLegal

The CoCo has a rule and it's very important. Her first rule of professional success: clients don't like it when you're wrong. When being wrong won't do, trust CoCounsel. ow.ly/E2oO50ZOt1M #TheCoCo

Disconnected workflows are one of the biggest barriers to AI adoption in audit. Client information gets exchanged in one system, managed in another, and analyzed in a third. This creates manual handoffs, duplicated effort, and lost context along the way. We're partnering with Suralink, the agentic platform trusted by 800,000+ users and 60% of the top 200 accounting firms, to help close that gap. Through a planned integration, Suralink's client collaboration and document exchange will connect directly with Engagement Manager. A separate integration will bring client provided information into CoCounsel Tax, Audit & Accounting. This will allow audit teams to move from client request to AI powered analysis without manually moving a single document. As a result, audit professionals will move from request to execution to analysis with more speed, more confidence, and none of the friction of switching systems. Learn more: ow.ly/JAHJ50ZO4c1

E-invoicing mandates are reshaping how businesses operate worldwide, and we are helping set the standard for staying ahead of them. Thomson Reuters has been named a Leader in the IDC MarketScape: Worldwide Compliant e-Invoicing 2026 Vendor Assessment, making us the only provider named a Leader across all four compliance categories: VAT, sales & use tax, global trade, and e-invoicing. Behind this recognition is ONESOURCE Pagero, connecting tax, trade, and compliance workflows across 90+ jurisdictions and a network of 14 million companies worldwide. Read the full announcement: ow.ly/OEJU50ZNuj5

Curious how we built Thomson, our first proprietary large language model, built in-house and fully owned by Thomson Reuters? Hear from Alexander Kardos-Nyheim, Senior Director, TR Labs, as he shares how it came together. Don't miss our next #TRLive on Tuesday at 11 am ET for all things Thomson. Register at the link in bio to save your seat. #TRLive #ThomsonAI

Most AI makes you faster. Fiduciary‑Grade AI™ makes you better. AtriCure's legal team used it to improve control and predictability of outside counsel spend within ~2% of forecast — and free attorneys for high-level strategic work. Read the case study: ow.ly/ABcq50ZMy1y #CoCounsel

In today’s tax world, you can’t afford to risk your reputation. CoCounsel uses Checkpoint content, IRS code & trusted government sources to deliver clear, citation-backed answers to complex tax questions in minutes. That's the power of AI built for tax. ow.ly/mijk50ZusjK