Domain-specific AI for law firms, in-house legal teams, and professional services
Domain-specific AI for law firms, in-house legal teams, and professional services
Spellbook records 65,733 monthly visits with +26.1% month-over-month growth and Free Trial pricing. Word Express (GPT4Office) records 0 monthly visits with 0% growth and Free Trial, Paid pricing.

A GPT-powered Word add-in for writing, images, voice and transcription
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | spellbook.legal | gpt4office.com |
| Pricing Model | Free Trial | Free Trial, Paid |
| Monthly Visits | 65.73K (65,733) | 0 (0) |
| MoM Traffic Delta | +13.59K (+26.1%) | 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (82.9%) | 🌐 Global (—) |
| Direct Visits / mo | 58.45K | 0 |
| User Rating | 4.6 | 2.3 |
| Supported Platforms | Website | Website |

AI contract review and drafting inside Microsoft Word
Redline contracts directly in Microsoft Word, catch non-standard terms and negotiate from your side with every tracked suggestion visible.
Generate new clauses, full agreements and revisions from AI prompts or from your own saved precedent libraries in seconds.
Encode your team's standards into automated checklists that are enforced on every review, and compare contracts against industry benchmarks.
An AI agent that works through multi-document legal matters with human oversight, plus quick answers to complex legal questions.

A GPT-powered Word add-in for writing, images, voice and transcription
Prompt GPT models from a Word task pane to generate paragraphs, outlines and full article drafts without leaving the document.
Rephrase sentences, adjust tone, or condense long sections into short summaries directly in the open document.
Create AI-generated illustrations from text prompts and insert them into your Word file.
Convert audio recordings into editable text for meeting notes, interviews and dictation.
Domain-specific AI for law firms, in-house legal teams, and professional services
Domain-specific AI for law firms, in-house legal teams, and professional services
AI translation for text, images, documents and speech in 100+ languages
AI translation for text, images, documents and speech in 100+ languages

On-premise translation and speech recognition for enterprises
On-premise translation and speech recognition for enterprises

AI contract drafting, review, and redlining grounded in millions of real agreements
AI contract drafting, review, and redlining grounded in millions of real agreements

Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail
Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail

AI presentation maker that builds native PowerPoint and Google Slides decks
AI presentation maker that builds native PowerPoint and Google Slides decks

One AI translator for documents, images, video and text
One AI translator for documents, images, video and text

Your personal AI legal assistant for research, drafting, and document review
Your personal AI legal assistant for research, drafting, and document review
AI contract review and redlining inside Microsoft Word
AI contract review and redlining inside Microsoft Word

Free ChatGPT-style text-to-speech and speech-to-text in your browser
Free ChatGPT-style text-to-speech and speech-to-text in your browser

Speak naturally, get polished and structured text anywhere on your desktop
Speak naturally, get polished and structured text anywhere on your desktop

Contract Intelligence platform for the enterprise