DraftCheck vs Sirion

DraftCheck is an AI-powered document drafting, redlining, and review tool that works inside Microsoft Word and Google Docs. Built by lawyers for Legal, HR, Compliance, and Operations teams, it uses Human-Guided Agentics to follow user templates, policies, and preferences while automating drafting, redlining, comparison, merging, and document cleanup.

Sirion is an AI-native contract lifecycle management platform used by large enterprises like Vodafone, IBM, and Morgan Stanley to create, manage, and analyze commercial contracts. Its AI engine, built organically over 15+ years rather than bolted on from a third party, centralizes contract data into a searchable repository and supports conversational search across an organization's full contract portfolio.

• Works directly inside Microsoft Word and Google Docs
• Local-first AI helps keep data private
• Built by lawyers for legal, HR, compliance, and operations use
• Human-guided control over drafting and redlining

• AI engine built organically in-house over 15+ years rather than a third-party wrapper
• Proven at very large enterprise scale (Vodafone, IBM, Morgan Stanley)
• Strong multi-language support for global contracting operations
• Covers the full lifecycle from creation through post-signature obligation management

• Pricing for heavy users can reach $120/month
• Requires installation as an add-in for Word or Google Docs

• No public pricing; enterprise sales cycle required
• Likely overkill and costly for small businesses or startups
• Implementation complexity scales with the size of the contract portfolio