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Wednesday, May 21, 2025

How one can extract knowledge from contracts?


Managing and reviewing contracts all through their lifecycle is kind of a difficult job for companies. Particularly since contract knowledge is usually scattered throughout totally different programs or departments – making it onerous to get a fast complete view of contractual obligations.

Contemplate the quantity of contracts that companies usually cope with, the hassle required to manually overview dense unstructured authorized data, and the (authorized) experience required to interpret the information inside contracts.

It is easy to see why managing contracts can turn out to be extraordinarily difficult!

Contract knowledge extraction options may help handle a few of these key challenges by:

  • lowering the time spent manually reviewing contracts
  • offering comparatively faster entry to essential contract data
  • enabling proactive administration of contract obligations and deadlines

On this article, we are going to be taught extra about contract knowledge extraction, challenges in extracting knowledge from contracts, some common strategies of contract knowledge extraction, and learn how it may well streamline numerous phases of the contract lifecycle.


Contract knowledge extraction is the method of mechanically figuring out and pulling out particular/related data from contracts or authorized paperwork.

This course of transforms unstructured contract textual content into structured knowledge that’s way more handy to analyse.This additionally helps companies to search out and use key particulars hidden of their contracts, making it simpler to know and handle their agreements.

Listed here are just a few use instances that largely give attention to analysing contracts together with examples of key contractual knowledge:

Use instances that require contract evaluationKey contract knowledge that have to be extracted
1. Merger and acquisitionOccasion names, contract values, termination clauses, change of management provisions and so on.
2. Vendor administrationPricing phrases, renewal dates, service stage agreements (SLAs), legal responsibility clauses and so on.
3. Lease administrationLease phrases, lease quantities, renewal choices, upkeep duties and so on.
4. Employment contractsCompensation particulars, non-compete clauses, advantages data, termination circumstances and so on.

Why is it difficult to seize knowledge from contracts?

Given the authorized nature of contracts, a excessive diploma of accuracy is extraordinarily essential, leaving little or no room for error.

However no contract knowledge extraction resolution, even automated or AI-powered ones, can assure 100% knowledge extraction accuracy!

Listed here are just a few the reason why:

  • contracts, like most enterprise paperwork, are available many various codecs, layouts, and constructions.
  • authorized paperwork and contracts typically use advanced language, industry-specific terminology and ambiguous legalese.
  • totally different organizations might use various phrases or context-dependent data to explain the identical ideas.
man writing on paper
Photograph by Scott Graham / Unsplash

Regardless of the challenges lined earlier, contract knowledge extraction options (particularly automated ones) are being more and more adopted by companies that need to transfer away from guide contract critiques.

These options leverage a mixture of NLP, LLMs and AI to learn and perceive contracts to establish key knowledge inside them. These instruments may be broadly grouped into two sorts:

  1. Specialised LLMs skilled on authorized knowledge akin to Harvey AI or Robin AI which can be primarily used for authorized overview and contract evaluation
  2. AI-powered rule-based clever doc processing (IDP) options akin to Nanonets which can be largely used for automating present contract knowledge extraction workflows

Most LLMs and generative AI-based options are vulnerable to hallucinations – particularly when it encounters unknown knowledge.

That is the explanation you may’t use Chat GPT or Claude with absolute certainty for authorized critiques or contract evaluation.

Alternatively, LLMs skilled on authorized knowledge and case legislation supplies have a deeper and a lot better understanding of authorized terminology and contract constructions, and are much less more likely to hallucinate or make stuff up.

Since such LLMs are skilled on massive knowledge units of authorized knowledge, they’ve wonderful contextual understanding. They will even perceive clauses inside the bigger context of a contract.

They are perfect for contract evaluation, authorized analysis, and authorized doc drafting; saving time that might in any other case be spent on guide search. Listed here are just a few examples of the highest LLMs skilled on authorized knowledge or AI contract overview software program:

  • Harvey AI: A legal-focused AI utilizing GPT know-how
  • Robin AI: A co-pilot for authorized duties
  • LEGAL-BERT: A BERT-based machine studying mannequin skilled on lots of of 1000’s of authorized paperwork
  • Lexis+ AI: A personalised authorized AI assistant
  • Casetext’s CoCounsel: An AI authorized assistant powered by GPT-4

Professionals of an LLM skilled on authorized knowledge

1. Considerably reduces time spent on contract overview and knowledge extraction
2. Handles numerous contract sorts and codecs extra successfully than rule-based programs
3. Identifies patterns and insights throughout massive contract portfolios
4. Creates searchable databases of contract data that may be shared throughout groups and departments

Cons of an LLM skilled on authorized knowledge

1. Has a possible for misinterpretation, particularly with advanced or uncommon clauses that it hasn’t encountered earlier than
2. Requires time/experience to correctly implement and fine-tune to take care of accuracy
3. Could not seamlessly combine with present contract administration programs and workflows
4. Excessive preliminary funding for licensing, implementation and ongoing upkeep


This is a generic tutorial on easy methods to use LLMs skilled on authorized knowledge akin to Harvey AI or Robin AI to extract knowledge from contracts:

  1. Make sure the contract is in a digital, machine-readable format (e.g., PDF, Phrase, or plain textual content).
  2. Establish the precise knowledge factors you’ll want to extract (e.g., events, dates, phrases, clauses) and specify a structured format for the output (e.g., JSON, CSV).
  3. Create and high quality tune prompts that instruct the LLM to extract particular knowledge. For instance: “Extract the next data from this contract:
    1. Events concerned
    2. Contract begin date
    3. Contract finish date
    4. Fee phrases
    5. Termination clauses”
  4. Enter the contract textual content and your prompts into the LLM. Some platforms might supply APIs for this step!

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At all times have a authorized skilled overview the extracted data for accuracy. Authorized AIs or LLMs are nonetheless removed from being 100% correct.

Look out for lacking data or incorrectly extracted data.

  1. Use the outcomes to additional refine your prompts and enhance accuracy.

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Even after a number of rounds of refinement, you are very more likely to come throughout contracts that the LLMs will nonetheless battle with.

Dealing with such exceptions would possibly require customized prompts (only for these distinctive contracts) or routing them for good outdated guide overview!


Most of the time, companies on the lookout for a contract knowledge extraction resolution, require one thing that may match into their present setup or workflows.

Ideally nobody prefers an answer that requires them to ditch an present contract administration system or make a ton of modifications to present processes.

Rule-based IDP options do an important job of automating contract knowledge extraction workflows with out disturbing present processes. They function a great middleware between unstructured contracts and contract administration programs (or authorized ERPs).

Professionals of an AI-powered IDP software program

1. Produces constant structured knowledge outputs – would not hallucinate!
2. Integrates with present contract administration programs and feeds extracted knowledge instantly into different enterprise processes
3. Handles totally different doc sorts past simply contracts – can be utilized for a wider vary of enterprise use instances
4. Far simpler to coach or enhance fashions to deal with exceptions or nook instances

Cons of an AI-powered IDP software program

1. Struggles with advanced authorized language or “unseen” contract codecs that require deep authorized evaluation
2. Would not generate summaries or cannot clarify contract phrases


This is a fast information on easy methods to use Nanonets, a well-liked AI-based IDP software program, to extract knowledge from contracts. For this instance, we’ll extract knowledge from a industrial lease settlement.

  1. Signup on Nanonets, login to your account, click on on “New workflow” and create a “Zero coaching mannequin”.
  2. Specify the information factors you need extracted out of your contract. For instance, listed below are the information factors I need to extract from a pattern industrial lease settlement:
    1. Landlord
    2. Tenant
    3. Landlord handle
    4. Tenant handle
    5. Graduation date
    6. Termination date
  1. Add your contract and anticipate just a few seconds. Nanonets AI will show the important thing contractual knowledge like so:
  1. You may appropriate or modify the information extracted by the AI and it’ll “be taught” from these corrections/modifications and hold getting higher.

IDP options like Nanonets additionally assist you to construct end-to-end automated workflows on prime of sturdy knowledge extraction capabilities. You may:

  • auto-capture incoming contracts through e mail, sizzling folders or API
  • refine the extracted knowledge via customized knowledge actions
  • customise the ultimate structured output
  • arrange approvals or validations for the extracted contract knowledge
  • and eventually export it to a downstream contract administration software program or ERP

This is a fast overview of those options on Nanonets:


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