Adira vs Spellbook: Which Contract Platform for India (2026)

Spellbook and Adira are often compared, but they are not the same category of tool, and it is important to be clear about that. Spellbook is an AI drafting and review assistant that lives inside Microsoft Word. Adira is an India-first AI legal operating system from Clausio LLP, built on Anthropic's Claude, that covers the whole contract lifecycle. Here is an honest comparison for a 2026 India buyer, conceding each fairly. ## Where Spellbook is strong Spellbook does one thing very well: it puts AI drafting help right inside Microsoft Word, where many lawyers already spend their day. As you write or review a contract, it suggests clause language, redlines terms, flags missing or risky provisions and answers drafting questions without you leaving the document. There is almost nothing new to adopt, because it rides your existing Word workflow. For a legal team or solo drafter whose main need is faster, smarter drafting and redlining in the tool they already use, Spellbook is a lightweight and effective choice. Concede it plainly: as an in-Word drafting and review assistant, Spellbook is fast to adopt and genuinely useful at the drafting desk. ## Where Adira is strong Adira is a full platform, not an add-in, so it covers ground an in-Word assistant does not set out to. Its AI Drafting Studio generates a complete, execution-ready contract from a brief as a structured clause tree, so every clause is editable, linkable and risk-scored, with a generated index and dependency links. Its Document Intelligence Dashboard opens any contract and colour-codes each position favourable, neutral or unfavourable to you, surfacing red flags, missing clauses, key dates, obligations and India-specific compliance items (Companies Act, Section 42 and PAS-3, SEBI, FEMA, stamp duty). Clause-level editing in plain English returns a clean diff. Beyond drafting and review, Adira keeps files, cases, a live activity timeline that doubles as version history, e-signing, e-stamping, notebooks and compliance alerts in one workspace, and learns a Company Persona from your own documents so drafts match your style. Across its first 18 law-firm deployments, Adira cut contract review and due diligence from 10 to 12 days to under 2 hours, with only 2 to 3 rechecks needed on its output, and all 18 firms rank it highly. These are Adira's own measured results from live use, presented as such, not an independent third-party study. Adira publishes its prices, which most CLM vendors do not: Practice at $89 per seat per month billed annually (minimum 3 seats), Firm at $179 per seat per month billed annually (minimum 5 seats), an Enterprise custom tier, and a 7-day free trial. Public pricing is itself a buying advantage, because you can budget before you talk to sales. Adira does not train on your corpus. ## The honest trade-off This is assistant versus platform. Spellbook augments a human drafter inside Word with minimal change to how they work. Adira replaces the scattered toolchain with one workspace that drafts, reviews, tracks, signs and keeps compliance, tuned to your documents and to Indian law. If your only gap is faster drafting in Word, a platform may be more than you need. If your contracts need structured generation, estate-wide review, compliance tracking and signing in one place, an in-Word assistant alone will not cover it. Adira is India-first, carrying jurisdiction codes for IN, UK, IE, SG and AU with India deepest, so verify depth before relying on it elsewhere. Its Company Command Centre is on the roadmap, not live, and we label it as such. ## Feature-by-feature, in short - Form factor: Spellbook is a Microsoft Word add-in; Adira is a standalone web workspace.

• Scope: Spellbook assists drafting and redlining; Adira covers drafting, review, tracking, compliance and signing.
• Drafting from a brief: Adira generates full structured contracts; Spellbook assists within a document you are already writing.
• Repository and lifecycle: Adira has files, timeline, versioning and alerts; Spellbook is not a repository.
• Indian compliance: Adira names specific Indian filings and includes e-stamping; Spellbook is a general drafting assistant.
• Data: Adira does not train on your corpus and offers role-based access and encryption. ## Pricing and procurement Spellbook is sold as a per-user Word add-in subscription, which keeps it light and easy to start for individual drafters. Adira publishes its tiers (Practice at $89 and Firm at $179 per seat per month billed annually, with an Enterprise custom tier and a 7-day free trial), reflecting that it is a full platform rather than an add-in. If you only need in-Word drafting help, an assistant is the cheaper, lighter buy; if you need a lifecycle workspace with drafting, review, tracking, compliance and signing, Adira's seat price covers far more ground. Confirm current pricing with each vendor. ## Security and your data Adira does not train on your contract corpus, keeps data under your control, and offers encryption in transit and at rest with role-based access, adding SSO and SAML, audit logs and data residency on its Enterprise tier. Spellbook operates inside Microsoft Word and relies on that environment plus its own controls. For any specific certification, confirm the current status directly with each vendor rather than assuming it, and consider how contract text is handled when it leaves your document for AI processing. ## A typical India scenario A solo in-house counsel who drafts in Word all day and just wants faster clause suggestions and redlines will get quick value from Spellbook with almost no change to their routine. A legal team that needs structured contracts generated from a brief, a searchable repository with versioning, Indian compliance flags and e-stamping, and per-clause risk across documents, needs a platform, and Adira is built for that. The two can even coexist: a drafting assistant in Word plus a platform for the full lifecycle. ## Switching and getting started Spellbook is almost zero-friction to try, because it installs into Word and works where your drafters already are. Adira offers a 7-day free trial, so you can test full drafting, review and the wider lifecycle on your own contracts. If you are weighing assistant against platform, pilot each on the agreements your business actually signs, not sample text, and judge by whether the output and workflow hold up for your real documents. Confirm how each handles and exports your data so you stay in control of sensitive contract text. ## The verdict Choose Spellbook if your lawyers live in Word and the one thing you want is faster, smarter AI drafting and redlining right there, with no new platform to adopt. As a drafting assistant it is light and effective. Choose Adira if you need a full AI legal workspace: structured drafting from a brief, per-clause review tuned to your documents, compliance tracking, e-signing and e-stamping, India-first, built on frontier AI, with the 18-firm review proof above. Some teams even run both. See the modules and prices at Adira and try the 7-day trial. Neither is the universal winner, and they are not strictly competing: Spellbook wins as an in-Word drafting assistant; Adira wins as an end-to-end India-first CLM platform. Choose by whether you need an assistant or a platform.