Top 5 AI Tools for Multilingual Legal Contract Review

Dialzara Team
September 13, 2025
12 min read
Top 5 AI Tools for Multilingual Legal Contract Review

Explore top AI tools that simplify multilingual legal contract reviews, enhancing accuracy and compliance while saving time for legal teams.

Dealing with legal papers in more than one language is tough, but AI makes it easier. These tools aid legal teams in spotting risks, keeping to rules, and keeping things the same over all languages. This saves both time and cuts down on mistakes. Here are five top tools for checking contracts in many languages:

  • Legartis: Works with German, English, and French papers, and tunes into local laws like those of Switzerland or Austria.
  • Summize: Handles main European languages and works well with Microsoft Word to make editing contracts smooth.
  • LegalOn: Helps with 28+ languages and has translation tools, great for big, worldwide firms.
  • LEGALFLY: Works with over 20 languages and makes sure legal details are right for places like the UK and US.
  • Cimphony AI: Aims for worldwide rule-following, backing big rules like GDPR and FCPA.

Quick Look

Feature Legartis Summize LegalOn LEGALFLY Cimphony AI
Language German, English, French Many European 28+ languages 20+ languages All the world's languages
Laws Europe-based rules Wide range rules Local and world-wide Local laws World rules
Good For EU groups Small to mid firms Big world firms Small to mid firms Big world groups
Time To Start Takes weeks Fast to start Not too quick Quick Takes weeks

Picking the right tool leans on your firm's size, spot, and key needs. For Europe's trade, Legartis is a good pick. If you look at world rules, Cimphony AI shines. Small firms get good use from Summize or LEGALFLY for fast and smart fixes.

1. Legartis

Legartis

Legartis is an AI-run tool made to help with reading big contracts in many languages by giving help that fits the law in each place. It works with texts in German, English, and French, changing how it checks each one to make sure it fits the law needed for that language. For German texts, Legartis can deal with legal ideas from the Swiss, German, and Austrian rules. For English texts, the tool can shift to fit both common law and civil law ways.

Also, Legartis has a part for Construction Contracts, but now, you can only use this in German.

This way of looking at things shows how Legartis deals with special legal needs, making it a big name in the world of custom contract reading.

2. Expand

Summize takes what Legartis does and adds more language help to deal with lots of top European languages. It gives AI-run tools for reading deals for legal teams who use English, French, German, Italian, Portuguese, and Spanish.

Language Help

Summize does well with English deal texts, and now it works with more European languages too. This makes it a strong pick for law groups and company legal teams that handle deals across borders. Its skill in many languages sets a strong base for clear law checks and mixing tools.

Sure and Right Ways

Summize uses AI tools right in Microsoft Word, making it easy to look at deals. These tools help with writing, marking changes, summing, and answering deal questions. This makes the check go quick and keeps the law side tight. It spots problems or missing parts in deals and gives tips on what to change, with auto notes in the documents.

Mixing and Flow

Summize blends well with Microsoft Word, letting legal teams keep their known ways without trouble.

3. LegalOn

LegalOn

LegalOn helps with more than 28 languages, making it a strong help for looking over contracts in many languages. This part is key for companies dealing with international deals in different legal areas.

Language Help

The platform lets you manage contracts in many languages by turning them into English for checking, but still lets you make marks on the first text. This two-way turning lets legal teams be sure of their work on international deals without losing exact details.

This easy word change makes hard legal work simple and gives built-in word switch options.

Automated Translation

LegalOn's own automated translation cuts out the need for other tools, giving a safe and good way to deal with key legal papers. Daniel Lewis, US CEO of LegalOn, points out how useful this part is:

When users do all work on this site, they dodge the bad choice of moving secret deal text to other sites.

Right Words and Rules Help

LegalOn does more than just change words to another tongue. It uses smart AI aimed just for law work to up the right word use. Not like common tools, LegalOn's AI is made to get the hard and exact words of law papers.

This sharp look at law points makes sure the tool gives true results while sticking to its users' own rules.

4. LEGALFLY

LEGALFLY

LEGALFLY is an AI tool made to make checking legal deals in many tongues easy. It can work with over 20 tongues and is used in 26 areas, including the UK, the US, some places in Europe, and Saudi Arabia. It's a big help for teams all over the world.

Language Help

This tool lets teams check and fix deals in their own tongue while the first way it looks stays the same. Its Translation Agent checks that the changes are spot on and that the look is the same in all tongues. This helps keep things clear and sharp, no matter the tongue or place.

Right and Rules Help

LEGALFLY does more than just help with tongues by dealing with the true legal bits of different places. Its key thing is it can shift how it looks at deals based on the rules it needs to follow. For example, it can change its check to fit with UK rules or US rules, shifting its look to fit the right legal marks. This way of dealing with each place makes sure it follows the law and spots any likely problems.

LEGALFLY has been praised in new charts for its strong work with many tongues and rule-aware skills, making it a first pick for firms, legal groups, and world groups.

5. Cimphony AI

Cimphony AI

Cimphony AI takes checking many-lingual deals to a higher stage by mixing high-tech AI with legal know-how. Made for groups working on world deals, this tool makes it easy to handle deals in many places, making it a top pick for worldwide work.

Right and Rule-Keeping Parts

Cimphony AI does great in making sure it fits with world rules. It helps stick to big laws like the FCPA, UK Bribery Act, GDPR, CCPA, CPRA, and LGPD, making it key for groups with many legal needs. It focuses on rule exactness so firms can handle deals to meet world needs.

This platform is very good for big deal reviews, doing things like world seller deals and customer MSAs with a mix of fast work and sharp advice. By doing this, Cimphony AI lets firms keep both quickness and rule-keeping in their deal work.

Tool Face-Off List

Check out this list to see top traits of five AI tools made to look over legal deals in many languages. Use this chart to weigh their powers and pick the right one for your team of law pros.

Feature Legartis Summize LegalOn LEGALFLY Cimphony AI
Language Help Has many major languages in Europe Has key world languages Is for Asia with many language choices Mainly for languages in Europe Has lots of world languages, knows small differences
Rules Match Fits with Europe and local rules Fits big world rules Follows world and area data rules Fits Europe rules Matches world and area rules
Working With Works with big work software Works with new work tools Can work in many ways Good with common work tools Made for big work system work
Deal Types For selling and job deals Looks at selling deals, NDAs, and services Good for big selling deals For small firms and suppliers For big world deals
Main Good Points Sharp on Europe law rules Easy to use, sets up fast Strong at looking at big deal info Low price for small groups Knows the world rules, can grow big
Best For Firms looking at Europe markets Firms not too big, not too small Big firms with big deals Small to mid firms Big firms all over the world
Setup Time Takes weeks to start Starts fast Starts in a mid amount of time Starts quick for small groups Starts in a few weeks

This table shows how each tool meets different needs, like Legartis's eye on European law or Cimphony AI's worldwide scope. If you need fast setup, deep data study, or support for many languages, these systems have custom fixes to fit varied group needs.

Conclusion

AI helps make going over legal work easier around the world. These tools help a lot in three main things: how fast they work, how right they are, and keeping rules.

Firstly, let's talk about speed. In 2017, JPMorgan Chase brought in its COIN program, which made looking over loan papers much faster – from 360,000 hours a year to seconds. This lets legal pros do more big jobs.

Now accuracy - the numbers are great here too. A LawGeex study showed AI was 94% right at seeing risks in key papers, better than the 85% rightness of top lawyers. This is very key when dealing with papers in many languages, where small mix-ups can be big trouble.

For keeping to rules when dealing with more than one country, AI shines by using big legal info from many places. For example, White & Case uses AI to check papers in many languages. This makes deals across borders smoother. Also, Luminance can handle over 80 languages, cutting need for lots of translators and making things run better.

Lawyers spend a lot of time on contracts, up to 40–60%. By early 2024, 41 of the top 100 law firms used AI for things like looking over documents and making contracts.

Picking the best AI tool depends on what your group needs. For businesses in Europe, Legartis is a good pick. For global works, Cimphony AI is great. Smaller firms might like Summize for its quick setup. Big firms might pick LegalOn for detailed work.

Professor Gillian K. Hadfield of the University of Southern California says it well - this change is huge:

This change gives legal teams new ways to use their time and care.

FAQs

How do AI tools keep it right when they look over contracts in many languages from many places?

AI tools for checking many-language legal deals are changing how firms stick to rules. They use law data made for each place and changeable rule parts to check words in deals against local laws. This makes sure deals follow the local rules well.

Also, top word-knowing tech (NLP) helps these tools get and use law words in different languages. So, deals are not just turned right but also made to fit the rules of each place. All these techs let firms deal with international law needs with sureness and speed.

When picking an AI tool to look at legal contracts in many languages, it's key to think about how big your legal team is and what it needs. For small teams, pick tools that are easy to use, quick to set up, and don't cost too much. But, big teams might want stronger options - tools that can deal with many languages well, work well with present systems, and check documents well.

It’s also key to look for tools with good security, that meet rules of the industry, and that can handle hard tasks well. A tool that can rightly work with many languages while fitting with your team’s day-to-day needs will make sure work goes smoothly and can be relied on.

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