AI contract comparison tool: the smartest way to review contracts

Comparing a third-party agreement with your standard terms means finding the changes that affect risk, obligations, and negotiation—not just the edits that changed the formatting. Arthur & Co provides a dedicated contract-comparison workflow through Grant. If you only have one contract, the Free Contract Analyser provides a structured first-pass review without comparison.

Grant is a specialised AI agent in the Arthur & Co platform, built specifically for contract review and comparison. It prepares structured findings for people who review vendor contracts; legal judgement and approval remain with the reviewer.

Want to try it now? Upload one contract to our Free Contract Analyser for a structured first-pass review. Contract comparison uses Grant's dedicated two-document workflow.

The Hidden Cost of Manual Contract Review

For legal, procurement, and compliance teams, analyzing contracts should not be this hard. Yet, the traditional process is a continuous drain on time and resources. Teams find themselves spending hours reading and comparing every clause line-by-line, hoping they don't miss anything critical.

The process is also inconsistent. Review time varies with the agreement's length, structure, and complexity. When time is short, it's easy to overlook subtle changes or hidden clauses, leading to missed risks, compliance failures, or costly disputes. Qualified legal help remains important for critical decisions, but a structured first pass can give that reviewer a narrower, better-organised set of issues.

The useful output is not a stopwatch result. It is a prioritised comparison that helps a person decide which changes need attention.

Grant was built for growing businesses (from freelancers to 200+ person SMEs) who need the power of legal tech without the enterprise-level complexity or price tag.

What Is an AI Contract Comparison Tool?

An AI contract comparison tool compares two contracts—typically a vendor-supplied version and your internal baseline terms—and structures detected differences, risks, and non-standard language for review.

The system works by having you upload your internal baseline contract and a third-party agreement. Grant then scans both documents, using sophisticated AI contract analysis to:

• Highlight Deviations: The tool surfaces detected changes, including reworded or relocated terms, between the drafts.
• Flag Missing or Risk-Relevant Clauses: It identifies terms that appear to be missing or materially different from the baseline.
• Provide Contextual Insights: The AI prepares clause-level explanations of detected deviations so a reviewer can assess why they matter.

This approach reduces undirected side-by-side reading. It does not guarantee that every change or legal issue will be found, so the output still needs human review.

Core Capabilities: Going Beyond Simple Redlining

While traditional redlining tools only show surface-level edits, Grant's AI contract comparison uses AI to understand context, flag risks, and explain why a change matters - even if the wording is subtle or rephrased.

This is delivered through several core capabilities:

• Risk insights: The workflow prioritises detected changes that may affect commercial, legal, or operational risk.
• Interactive contract Q&A: Users can ask plain-language questions such as "What changed in the termination clause?" and review answers against the source document.
• Strategic questions: Grant prepares questions that a reviewer can take into a supplier or legal discussion.
• Gap analysis: The comparison shows terms present in the baseline that appear to be missing or materially changed in the new draft.
• Clause-level annotations: Relevant clauses can be presented with risk flags, explanations, and deviation notes.

Together, these features turn two contracts into a structured first-pass comparison. The reviewer still decides whether to accept a change, ask the supplier a question, negotiate, or escalate it.

Use Cases for Procurement, Sourcing, and Compliance Teams

Grant is designed for people who manage or review third-party contracts. These include vendor contract managers, procurement teams, legal and compliance officers, finance and risk roles, and founders at growing businesses. Common inputs include vendor agreements, SaaS contracts, MSAs, NDAs, employment contracts, and renewals.

Teams use Grant to accelerate and de-risk several critical workflows:

• Vendor Onboarding and Contract Reviews: Comparing new supplier terms against an internal baseline before approval.
• IT and SaaS Procurement: Reviewing agreements for hidden risks, non-standard indemnity clauses, and unfavorable liability terms.
• Supplier Renewals: Structuring detected changes between the current agreement and a renewal draft.
• Audit Trails and Compliance: Every comparison generates a detailed, exportable report, making it easy to document the review process for audits, compliance, or internal approvals.

The comparison can also give procurement a focused list of questions to take to legal, rather than asking counsel to begin with an unstructured pair of documents.

Grant as Part of Arthur & Co

Grant specializes in contracts and legal agreements (NDAs, MSAs, vendor agreements, employment contracts, SaaS agreements).

Arthur & Co also provides specialist workflows for general document comparison, supplier-statement reconciliation, evidence checks, and receipt processing. Invoice verification is part of the planned platform direction rather than a live public workflow.

One platform. Multiple specialized agents. One shared credit pool.

Try It Free: No Credit Card, No Commitment

Want to experience AI contract analysis before committing? Upload your contract to our Free Contract Analyser and get:

• A structured first-pass summary
• Risk flags and missing-clause checks
• Key obligations and findings to review
• Questions to consider before approval or negotiation

Follow the on-screen email verification steps. No credit card is required for the free analysis.

Conclusion

Contract comparison with Grant turns a baseline and a new draft into a structured set of detected deviations, risk priorities, and questions. That gives procurement and legal teams a shared starting point without pretending that software makes the final legal decision.

Use the comparison to focus attention on the terms that may change the decision, then verify the findings against the source contracts.

Grant sits within the Arthur & Co platform alongside other specialist back-office workflows, using the same account and shared credit model.