ChatGPT vs Spellbook

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-08-14
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At a glance

DimensionChatGPTSpellbook
PricingFreemium; Pro ~$20/moContact for pricing (custom)
Primary Use CaseGeneral AI assistant: writing, coding, research, image genLegal AI copilot for contract drafting and review in Word
Key FeaturesText, image (DALL·E), voice/video, web browsing, deep research, agent mode, custom GPTsMissing Clause Review, Directed Draft, Spicy Mode, Compare to Market, Playbooks, Associate agent
IntegrationsSlack, Google Drive, Office 365, GitHub, Spotify, Zapier, Square (new)Microsoft Word, iManage
Best ForProfessionals, developers, creators, students needing versatile AITransactional lawyers, in-house counsel, law firms
Latest NewsSquare integration for orders; GPT-5.6 Pro variants leaked; image generator safety concernsRaised $50M Series B; monthly product spotlights

Choose ChatGPT if you need a versatile AI assistant for writing, coding, research, and creative tasks across many integrations. Choose Spellbook if you're a transactional lawyer or in-house counsel who lives in Microsoft Word and needs a specialized legal copilot for contract drafting and review. The two tools serve entirely different purposes.

Try ChatGPTTry Spellbook
ChatGPT
ChatGPT

ChatGPT: the versatile AI assistant for chat, work, creation, and coding

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Spellbook
Spellbook

AI contract review and drafting copilot that lives inside Microsoft Word

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Pricing
Freemium
Freemium
Plans
$0/mo
$0/mo
$20/mo
$200/mo
$0
Custom
$0
Popularity
5.6k views
5.4k views
Skill Level
Beginner-friendly
Intermediate
API Available
Platforms
WebMobileDesktop
DesktopPlugin
Categories
🤖 AI Assistants
⚖️ Contracts, E-Signature & Legal
Features
Text conversations with GPT-5.6 Luna (free)
Advanced reasoning with GPT-5.6 Sol and Sol Pro (paid)
Image generation with tier-based speed and quality
Voice conversations, including with video
Real-time web browsing (paid plans)
File upload and analysis (images, PDFs, spreadsheets)
Code execution via Codex
Deep research mode
Agent mode for autonomous tasks
Custom instructions and memory
Projects, scheduled tasks, and custom GPTs
Group chats and shareable links
Mobile app (iOS, Android) and desktop apps (macOS, Windows, Linux)
ChatGPT Work for professional tasks
Ads in Go tier (launched July 2026)
AI redlines directly in Microsoft Word
Contract review with risk detection
Draft clauses and documents from precedents
Ask answers from deal history and 100+ legal sources
Compare contracts to market standards with Benchmarks
Missing Clause Review suggests absent clauses and definitions
Find Conflicting Terms for internal inconsistencies
Spicy Mode drafts aggressive negotiation language
Proofread for automated proofreading
Playbooks encode reusable review instructions
Associate multi-document agent for due diligence
Zero Data Retention agreements for privacy
SOC 2 Type II compliant security
Word add-in integration
Multi-document workflow support
Integrations
Canva
Spotify
Microsoft PowerPoint
Apple Health
MyFitnessPal
Microsoft Word
iManage

Who should pick which

  • Solo entrepreneur
    Pick: ChatGPT

    ChatGPT's broad capabilities (writing, coding, research, image gen) and low-cost free/Plus plan make it ideal for diverse startup needs.

  • Transactional lawyer
    Pick: Spellbook

    Spellbook's Word integration and contract-specific tools (Missing Clause Review, Spicy Mode, Playbooks) directly address daily drafting and review tasks.

  • Content creator
    Pick: ChatGPT

    ChatGPT offers image generation, copywriting, and social media planning; integrations with Canva and Zapier streamline content workflows.

  • In-house counsel
    Pick: Spellbook

    Spellbook's Compare to Market and Playbooks help enforce contract standards; its zero data retention and SOC 2 compliance meet legal data security needs.

  • Developer
    Pick: ChatGPT

    ChatGPT includes code interpretation, debugging, and integrations with GitHub and Linear, plus agent mode for autonomous coding tasks.

Frequently Asked Questions

ChatGPT vs Spellbook: which should you choose?

Choose ChatGPT if you need a versatile AI assistant for writing, coding, research, and creative tasks across many integrations. Choose Spellbook if you're a transactional lawyer or in-house counsel who lives in Microsoft Word and needs a specialized legal copilot for contract drafting and review. The two tools serve entirely different purposes.

Which tool is better for contract review?

Spellbook is purpose-built for contract review with features like Missing Clause Review and Compare to Market, while ChatGPT is a general assistant that can help but lacks legal-specific integrations in Word.

Is ChatGPT free?

ChatGPT has a free tier with limited access to GPT-5.5 Instant; paid plans start around $20/month for advanced features like web browsing and DALL·E.

Does Spellbook offer a free trial?

Spellbook uses contact-based pricing; you need to book a demo to get access, so there's no self-serve free trial.

Can ChatGPT generate images?

Yes, ChatGPT integrates DALL·E for image generation, though recent news shows it can be manipulated to produce violent or sexual content.

Does Spellbook work outside of Word?

Spellbook's primary integration is with Microsoft Word and iManage; it is not a web-based chatbot.

Which tool has better data security for legal work?

Spellbook boasts SOC 2 Type II compliance and zero data retention, making it suitable for sensitive legal documents. ChatGPT has had past concerns with plugin data exfiltration.

Can ChatGPT handle multi-document analysis?

ChatGPT can handle file uploads and has a deep research mode, but it lacks a dedicated multi-document agent like Spellbook's Associate feature.

What integrations does Spellbook have?

Spellbook integrates with Microsoft Word and iManage; it does not offer integrations with Slack, Google Drive, or other general tools like ChatGPT does.

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Explore each tool further

ChatGPT
View ChatGPT reviewChatGPT alternatives
Spellbook
View Spellbook reviewSpellbook alternatives

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Last reviewed: May 12, 2026