Thomson Reuters

At Thomson Reuters, we’re not riding the AI wave — we’re reshaping the future of professional work across law, tax, compliance, and journalism.

[Thomson Reuters @thomsonreuters]

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. 👇

- https://t.co/cGrG0HesUz

#ThomsonAI #CoCounsel

[Thomson Reuters @thomsonreuters]

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: https://t.co/ZFtmHW9yiG

#CoCounsel

[Thomson Reuters Tax, Audit & Accounting Pros @TRTaxAccounting]

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. https://t.co/TeIorctBGU

[Thomson Reuters @thomsonreuters]

⏰ Less than a week to go!

Join our CEO, Steve Hasker, and Alexander Samuel Kardos-Nyheim, our Senior Director of TR Labs, for a discussion moderated by Emily Colbert, Co-head of Product, Thomson Reuters Legal on:

- Why build our own model instead of relying solely on frontier labs
- AI sovereignty and why control over training and behavior matters now
- How Thomson was built
- What it means to build to the standard of Fiduciary-Grade AI™
- What Thomson means for our customers

📅 September 15 | 🕚 11:00 AM EST

🔗Register and learn more about Thomson below.

- https://t.co/WMnnlRrct5

#ThomsonAI
#TRLive

[Thomson Reuters @thomsonreuters]

"Attorneys typing a prompt into a tool isn't true adoption."

That's Parker Poe Adams & Bernstein LLP partner Carlos Manzano on where legal AI actually stands in 2026.

And Parker Poe CIO Skip Lohmeyer names the operational counterpart: "Real transformation happens when adoption moves beyond a handful of early enthusiasts and becomes part of how the organization operates."

Together, they describe the "from permission to performance" shift. Two years ago, clients asked whether firms were able to use AI. Today, with in-house teams using AI themselves, they're asking what value outside counsel delivers that their own capable teams can't.

Read the full conversation: https://t.co/UngJMG2Rfg

[Thomson Reuters @thomsonreuters]

Artificial intelligence is rapidly becoming part of legal education and practice, but understanding how it works is essential to using it responsibly.

Join us for Session 1: AI 101 & Why AI Creates Ethical Dilemmas for Lawyers to gain a plain-language understanding of generative AI, explore the ethical risks it can create, and learn how to recognize early warning signs of AI over-reliance.

Register today: https://t.co/CGcnAc1ToT

#ArtificialIntelligence #LegalEducation #LegalTech

[Thomson Reuters @thomsonreuters]

Research. Draft. Analyze. Verify. All in one workflow.

The next generation of CoCounsel Legal is now generally available, built on Fiduciary-Grade AI™ principles and grounded in trusted content from Westlaw and Practical Law.

Explore CoCounsel Legal here. ⬇️

https://t.co/LfoVYtlRpE

#CoCounsel

[Thomson Reuters @thomsonreuters]

Teladoc powers virtual healthcare for 100M+ Americans. Rapid growth raises the stakes for its legal team.

CoCounsel Legal helps Teladoc counsel keep pace without compromising trust.

Privacy impact assessments that once took days can now be completed in minutes — all backed by Fiduciary-Grade AI Teladoc can rely on.

The result? Processes accelerated. Accuracy ensured. Privacy secured.

Read more about why Jerry Johnson of Teladoc is a changemaker. https://t.co/o5NXHtreBD

#CoCounselLegal #ChosenByChangemakers #CoCounsel

[Thomson Reuters @thomsonreuters]

Frontier-level AI is becoming table stakes, the real edge is what you own.

Our CTO, @JoelHron, shares why proprietary content and expertise are what set Fiduciary-Grade AI™ apart: https://t.co/DYTcHfmErD

Learn more during our #TRLive: Introducing Thomson taking place on September 15th.

Register here ⬇️

https://t.co/DaOUSavzHX

#ThomsonAI #ILTACON2026

[Thomson Reuters @thomsonreuters]

Nashville, we’re not ready to leave.

Four days of #ILTACON2026 are in the books, and honestly, we’re still processing it all. Our booth stayed busy from open to close. At our Company Update, a full room heard Steve Hasker say we’re “not loyal to a model, we’re loyal to the right answer,” right before he unveiled Thomson, the LLM we built from the ground up on our own content and real legal work.

But if we’re being honest, the best part of this week wasn’t on a stage. It was getting to show customers the next generation of CoCounsel Legal in person and hearing their reactions as they saw what Fiduciary-Grade AI™ could mean for the way they work. That’s the stuff that reminds you why we do this.

We also got to have fun with people. We stepped into the world of #TheCoCo at our hospitality suite, watched people light up taking photos at her desk, and danced (loudly, unashamedly) to Little Big Town with customers and partners who’ve become genuine friends over the years.

To everyone who stopped by, sat in on a session, asked a hard question, or just told us what’s actually keeping you up at night, thank you. We’ll take those conversations home with us.

See you next year, ILTACON.

#ILTACON2026 #CoCounsel

[Thomson Reuters @thomsonreuters]

Most AI isn't built for the moments where you can't afford to be wrong. CoCounsel Legal is.

Here's what's different in 25 seconds.

#ILTACON2026 #CoCounsel

[Thomson Reuters @thomsonreuters]

If you're still at #ILTACON2026, today is the last chance to step into the world of #TheCoCo.

Our hospitality suite is open from 9 am – 12 pm CT!

[Thomson Reuters @thomsonreuters]

“You can’t do this with a third-party model.”

Alexander Kardos-Nyheim, Senior Director, Thomson Reuters Foundational Research, explains what owning our own LLM unlocks.

Because we control the model, we can improve it in the exact direction our customers need, train it around the standards of professional work, and deploy it within the trusted environments our customers rely on.

That’s the advantage of owning the intelligence that matters most, and what Fiduciary-Grade AI™ looks like in practice.

Learn more about it during our LinkedIn Live taking place on September 15th at 11 am EST. Register here: https://t.co/27V3xSYch9

#ILTACON2026 #ThomsonAI

[Thomson Reuters @thomsonreuters]

Day two at #ILTACON2026 started early with a press and partnerships breakfast that brought reporters, industry partners and Thomson Reuters leaders together for an open conversation about where legal AI is headed.

That same curiosity carried through the rest of the day. In sessions, demos and conversations at our booth, one theme kept coming up: legal professionals want AI that can earn their trust and deliver in high-stakes work.

Throughout the day, attendees stopped by our booth to meet The CoCo, see the next generation of CoCounsel Legal in action, and explore what Fiduciary-Grade AI™ could mean for their work. The booth theater also drew a full house for “Document Analysis, Elevated,” where Alexander Kardos-Nyheim, Senior Director at TR Labs, demonstrated tabular analysis powered by Thomson, our new purpose-built LLM.

We ended the day at Foundry Fieldhouse, where our Chief Marketing and Communications Officer, Amy Messano, announced a $25,000 donation to Dolly Parton’s Imagination Library. Then Little Big Town took the stage and kept the crowd on its feet, singing and dancing all night long.

A memorable day in Nashville.

#CoCounsel #LegalAI

[Thomson Reuters @thomsonreuters]

“Its integration with @DeepJudgeAI , Westlaw, and Practical Law will help our lawyers access firm and legal knowledge more effectively, while maintaining the quality and professional judgment our clients expect.”

That's @GT_Law, Chief Pricing and Innovation Officer, Matthew Beekhuizen, on what firmwide deployment of the next generation of CoCounsel Legal means for the firm's lawyers.

Watch below for more of his takeaways from today's announcement—and what four years of close collaboration with Thomson Reuters looks like in practice.

Full details on the deployment: https://t.co/p2rsZoOJzE

#LegalTech #CoCounsel #ILTACON2026

[Conor Bronsdon @ConorBronsdon]

Every eval loop on a rented model ends at the same four knobs: system prompt, new tools, new skills, harness tweaks. Or you wait for the next model.

@JoelHron runs that loop on CoCounsel Bench. The attorney judgments feeding it ("B is better than A because...") are some of the most valuable data @thomsonreuters produces, and on a rented model they improve a prompt and then evaporate at the next release.

Joel's case for training Thomson is about where that judgment goes. On @chain_ofthought: https://t.co/cx3h4575xG

[Thomson Reuters @thomsonreuters]

@GT_Law has deployed CoCounsel Legal firmwide, giving lawyers agentic AI to plan, research & draft across a matter. Grounded in Westlaw, Practical Law & @DeepJudgeAI built on our Fiduciary-Grade AI™ standard.

https://t.co/Z96ZJnigNl

#LegalAI #CoCounsel #ILTACON2026

[Jonathan Richard Schwarz @schwarzjn_]

🎙️Full tech report on how to actually achieve SovereignAI, from data to model training, values, infrastructure, to large-scale deep research.

Bridging up to 7 months of Frontier AI development with a $450k training Continual Learning run 🧠

📜 Paper: https://t.co/ooEhgoF0lU
💻Model: https://t.co/DgcWLuqnQX
Partners: @imperialcollege, @datologyai, @LambdaAPI