// siftino edition November 9, 2026993 AI tools419 with a free plan51 task rankings613 comparisonsprices from vendor pricing pages36 guides
Guide · Vendor sources checked November 4, 2026 · 634 words

AI for Contracts and Legal Work: Spellbook, Harvey and fynk Compared by Use Case

No single AI tool fits every contract job. Spellbook centers on contract review and drafting, Harvey on a broad legal platform, and fynk on contract management and storage.

Piotr Olszewski · updated Vendor sources checked November 4, 2026

Affiliate disclosure: Siftino may earn a commission when you sign up through links on this page. That relationship can influence which tools we feature, so treat the descriptions below as a starting point and verify details on each vendor's site.

There is no single best AI for contracts and legal work. According to the vendor pages, Spellbook focuses on contract review and drafting, Harvey presents itself as a platform for law firms and in-house legal teams, and fynk is built around contract management. Pick based on the job you need done first.

This guide covers three selected options. It is not a ranking of the whole market. Lexis+ with Protégé, CoCounsel, and Rev are not compared here.

Use cases

  • Spellbook: reviewing vendor agreements and redlining contracts against your team's playbooks.
  • Harvey: running client matters or in-house legal work on one shared platform.
  • fynk: keeping contracts in one searchable workspace and asking an AI assistant questions across them.

Spellbook

Spellbook calls itself a contract AI suite for review and drafting. Its homepage says it reviews supplier MSAs across multiple countries, applies standard playbooks, catches non-standard terms in vendor agreements, and reduces repetitive drafting time. It also lists intake from email and Slack, redlining with tracked suggestions, and a repository that monitors renewals.

Limitations: the 75% time saved and 2x throughput figures on the homepage are vendor claims, and I have not verified them. The source I reviewed gave no pricing, so cost is unknown.

Harvey

Harvey's homepage describes agents that route tasks, shared Spaces for firms, clients, and co-counsel, a document Vault, Contract Intelligence for routine reviews and negotiations, and a Command Center for usage tracking. It lists SOC2 II, GDPR, and ISO 27001 among its certifications, plus SAML SSO and audit logs.

Limitations: the page stresses law firms and large legal organizations and gives no plan structure or prices, so I cannot say how well it suits smaller teams. The figures for customers and hours saved are vendor claims.

fynk

fynk describes itself as contract management software. Its homepage says the AI assistant drafts, reviews, and tracks contracts, and lists searching the whole repository, comparing versions, and an MCP server for working from Claude or ChatGPT. It states EU hosting and ISO 27001. The pricing page lists a Free plan at €0 for individuals and freelancers, with monthly billing or yearly billing that saves up to 34%.

Limitations: the pricing excerpt does not show what paid tiers include or cost, and it does not detail the Free plan's limits. The sources describe it as contract management, not legal research.

How to choose

  • Reviewing incoming vendor contracts against standard terms: start with Spellbook.
  • Running a firm or large in-house department with client workspaces and governance controls: evaluate Harvey.
  • Wanting one searchable place for all contracts, with AI for comparing versions: evaluate fynk.
  • Check current pricing on each vendor's site, since the sources gave no complete prices with currency, billing period, and conditions for paid plans.
  • Review data handling with your compliance team before uploading confidential material.

What is the best AI tool for reviewing contracts?

It depends on your workflow. Spellbook's site centers on playbook-based review and redlining. Harvey's Contract Intelligence sits inside a broader platform aimed at larger organizations.

Is there a free AI tool for contract management?

fynk's pricing page lists a Free plan at €0 for individuals and freelancers. The excerpt does not detail its features or limits, so check them before relying on it.

The vendors describe security controls, such as Spellbook's zero data retention statement and Harvey's SOC2 and GDPR references. These are vendor claims. A qualified lawyer should still review AI-drafted contracts.

Sources