What Is the Litera Plugin for ChatGPT and Copilot?

The Litera Plugin for ChatGPT and Copilot lets lawyers compare documents and get a true redline inside their AI assistants of choice. Use Litera’s comparison engine to get a true redline. Teams with Litera Foundation can also ask Firm AI Search who has done what, and on which matters, in plain language.

67%

of the legal market uses Litera Compare as its redline standard

91%

of firms with 700 or more lawyers use Litera’s comparison engine

30 years

of rules-based comparison accuracy behind every redline

Source: ILTA 2026 Technology Survey

Can Your Legal AI Compare Two Documents Accurately?

On their own, ChatGPT and Copilot predict what changed between two documents instead of detecting it, so they can miss changes and can’t produce a true redline. A redline can’t be a guess.

When the counterparty’s draft comes back, every predicted redline still gets checked twice. Litera has spent 30 years building the comparison engine the practice of law relies on. The Litera Plugin brings that same deterministic engine into ChatGPT and Copilot, so lawyers get a true redline document, not a narrative summary, and spend their time on judgment instead of verification.

See It in 30 Seconds

What Can Lawyers Do With Litera in ChatGPT and Copilot?

Negotiate from a redline you can trust, then answer the next question with your organization’s own experience. Faster work, deeper relationships, and growth for the business, in one assistant.
Comparisons

Redlines Detected, Not Predicted

Upload two or more versions and ask for a comparison. The Litera comparison engine detects every change with rules refined over 30 years, and returns a redline document and a link to review it directly in Lito, Litera’s AI agent.

Comparisons

Every Change, Every Element

Tables, images, headers and footers, footnotes, and embedded objects are all redlined. Ask for a plain-language summary of what changed, with the redline behind it.

Firm AI Search

Answers From Your Own Experience

Ask who has done this work, on which matters, and where the experience sits. Answer the next question from what your team has actually done.

Governance

Governed by Your Organization

Each user sees only the Litera capabilities their subscription includes. Your administrators turn the plugin on in Litera Admin Center when you’re ready.

What Return on AI Does the Litera Plugin for ChatGPT and Copilot Deliver?

Return on AI (RoAI) measures more than time saved. The Litera Plugin delivers all three parts of it: efficiency, deeper relationships, and growth for the business.
Efficiency Growth

Time Back From Every Redline

Deterministic redlines remove the second check, and lawyers never leave ChatGPT or Copilot to get them.

Relationship Growth

Work People Can Rely On

Answers grounded in an exact redline and your own experience build trust with everyone who depends on your work.

Business Growth

Time That Turns Into Value

The hours saved go into the next matter, the next deal, or the next business priority, not into checking output.

Most AI delivers one of the three. Litera is built to deliver all of them.

How Does the Litera Plugin Work?

Step 1

Join the Rollout List

Tell us about your team, and a Litera specialist will confirm your plan and plan the rollout with your team.

Step 2

Turn It On

Activate the Litera Platform and Lito, Litera’s AI agent. Your administrator switches on the plugin in the Platform Admin Center and decides who can use it. Nothing new to sign.

Step 3

Ask in ChatGPT or Copilot

Lawyers sign in with their Litera account, compare versions, or ask who has done the work, all without leaving your AI assistant.

Frequently Asked Questions

The Litera Plugin brings Litera’s comparison engine and firm intelligence into the AI assistants lawyers already use. It’s available in Microsoft Copilot and ChatGPT today, with Claude coming soon. Lawyers compare documents and get a true redline, then ask who has done this work before, without leaving the assistant.

Add the Litera Plugin in ChatGPT, sign in with your Litera account, upload two or more versions, and ask for a comparison. The Litera comparison engine detects every change and returns a redline document, plus a link to review it in Lito, Litera’s award-winning Legal AI agent.

Once your administrators make the Litera Plugin available in Copilot, share two or more versions and ask for a comparison. The Litera comparison engine detects every change and returns a redline document, plus a link to review it in Lito.

On their own, general-purpose AI assistants predict what changed between two documents and summarize it, so they can miss changes and can’t produce a true redline. With the Litera Plugin, the redline comes from the deterministic Litera comparison engine, built on 30 years of rules-based accuracy.

Yes. The Litera Plugin is one plugin delivered across AI assistants, not a separate product for each. Lawyers get the same Litera comparisons and Firm AI Search whichever assistant they start in.

Litera Compare is the redline standard for 67% of the legal market and is used by 91% of firms with 700 or more lawyers, according to the ILTA 2026 Technology Survey. The Litera Plugin runs that same comparison engine inside Copilot and ChatGPT.

Yes. The Litera comparison engine redlines tables, images, headers and footers, footnotes, and embedded objects. Lawyers can also ask the assistant for a plain-language summary of what changed, with the redline behind it.

Yes, with Firm AI Search. Teams with Litera Foundation can ask who has done this work, on which matters, and where the experience sits, in plain language. Foundation customers get early access as part of their Foundation subscription. Usage levels and pricing are subject to change.

Comparisons in the Litera Plugin are included on Pro and Advanced plans across Draft/Practice, Transactional, and In-House, in both Copilot and ChatGPT. If you’re on Base, talk with your account team about what Pro adds.

You need an active Litera Platform tenant with Lito activated, and a plan that includes the plugin. Your administrator then turns it on in Litera Admin Center. There’s nothing new to sign.

Your administrators do. They turn the plugin on in Litera Admin Center and decide who can use it, and each user sees only the capabilities their subscription includes. In Copilot, your Microsoft administrators also decide whether and how the plugin is available.

Each user signs in with a Litera account and sees only the capabilities their subscription includes. Your administrators control who can use the plugin. Litera holds ISO 27001, ISO 42001, SOC 2 Type 2, SOC 3, GDPR, NIS 2, and DORA certifications.

Yes. The Litera Plugin works alongside Microsoft Copilot, including Copilot for Legal, so lawyers get a redline they can stand behind in the assistant their organization has chosen. Litera is a top Microsoft AI partner and a member of Microsoft’s Inner Circle.

The Litera Plugin for Claude is coming soon. Today, it’s available in Microsoft Copilot and ChatGPT. Talk with your account team to hear when it reaches the assistant your team uses.

Be First in Line

Join the rollout list, and our team will work with you to bring the Litera Plugin to your team.

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