Spellbook vs ChatGPT
Plans, free access, limits and intended use side by side, taken from each vendor’s own pages. No score and no winner: the facts show where the two differ.
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AI contract review, redlining and drafting inside Microsoft Word, priced per seat by quote
An assistant for drafting, files and web research.
- Free access
- Spellbook: Free trial only
- ChatGPT: Free access
- Paid from
- Spellbook: No fixed price listed
- ChatGPT: No fixed price listed
- Plans listed
- Spellbook: 4
- ChatGPT: 8
- Public API
- Spellbook: Not confirmed
- ChatGPT: Yes
Where Spellbook and ChatGPT differ
- AccessSpellbook offers a free trial only, while ChatGPT offers free access.
- Pricing checkPrices not confirmed for Spellbook; pricing review due for ChatGPT.
- PlansSpellbook lists 4 plans and ChatGPT lists 8.
Head to head
Each value from the tool’s profile and the vendor’s own pages
| Spellbook | Fact | ChatGPT |
|---|---|---|
| Access and price | ||
| Free trial only | Free accessDiffers | Free access availableFree |
| No fixed price listed | Lowest listed paid plan | No fixed price listed |
| No public prices; per-seat quote, 7-day free trial | Pricing model | Free; Go EUR 8 (local price); Plus USD 20 |
| 4 | Plans listedDiffers | 8 |
| Not confirmed | Public API | Yes |
| Not confirmed | Card to start | Not confirmed |
| Not confirmed | Open source | No |
| What it is for | ||
| Transactional lawyers and in-house legal teams who review and draft contracts in Word | Built for | General drafting, files and everyday research |
| Writing & content | CategorySame | Writing & content |
| Platforms |
|
| Works with |
|
| How current | ||
| Profile sources checked | ||
| Prices not confirmed · Oct 17, 2026 | Pricing checkDiffers | Pricing review due · Sep 24, 2026 |
Official source check for both tools. No hands-on testing and no score: “Differs” marks a documented difference, not a better tool.
Plans and prices
Spellbook
Prices not confirmed · Oct 17, 2026- Law firmsNot published; per-seat quote
- In-house teamsNot published; per-seat quote
- Free trialUSD 0 for 7 days
- AcademicFree until the end of 2026
ChatGPT
Pricing review due · Sep 24, 2026- FreeFree
- GoEUR 8 per month
- PlusUSD 20 per month
- Pro $100USD 100 per month
- Pro $200 (Pro 20x)USD 200 per month
Show 3 more plans
- Business (Standard seat)USD 20 per seat per monthbilled annually · USD 25 billed monthly
- Business (Premium seat)USD 100 per seat per monthbilled annually · USD 125 billed monthly
- EnterpriseCustom pricing
Strengths and limits
Spellbook
Strengths
- Works where lawyers already edit: The Review page puts redlines and comments inside Microsoft Word, so there is no separate document upload step.
- Your standards, reused: The Review page says playbooks save how you want a document reviewed, and the pricing page lists a playbook build service for in-house teams.
- Review plus research in one place: The Ask page says the same workflow covers asking what the law requires, citing the source and applying the answer as a redline.
Limits to plan around
- No public prices: The pricing page shows no amounts; it says pricing depends on the number of team members on a licence and sends you to a demo.
- Not legal advice: Terms section 5.4 says the customer will not rely solely on output as formal legal advice and will have it checked by a licensed lawyer when appropriate.
- Spellbook may keep a copy for 90 days: The Terms let Spellbook keep inputs and outputs for quality assurance for up to 90 days, which is separate from the zero retention it requires of its model providers.
ChatGPT
Strengths
- Many kinds of work in one assistant: Drafting, file analysis, image generation, voice and web research share one account.
- Unlimited basic chats on Free: The Free plan has no cap on text chats with the basic model.
- Projects organize related work: Chats, files and instructions for an ongoing job stay together.
Limits to plan around
- No annual discount for individuals: Go, Plus and Pro are billed monthly only; annual pricing is limited to Business seats.
- Pro $200 closed to newcomers: New sign-ups and upgrades to the 20x tier are paused; existing subscriptions keep renewing.
- Go pricing is regional: Go may include ads. Its January 2026 US launch quote was $8 monthly; confirm today's local checkout amount before subscribing.
See both products
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Run both tools on the same real task, then compare the result, how much editing it needs and how fast it uses your plan’s allowance.
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Comparing tools from different categories is fine, and often useful — a writing assistant and a research tool solve different halves of the same job. The table will show you exactly where they diverge.
Questions about comparing tools
How does the comparison work?
Add two tools to the comparison tray from any tool card, then open this page. The table pulls each tool's verified plan details, platforms, strengths and limits from its profile, so both columns carry the same kind of evidence, with a separate source-check date for each tool.
Do you declare a winner?
No. The table sets two tools against each other on documented facts, not on a score. Which one wins depends on your task, your budget and your usage volume — three things we cannot see from here.
Why are some cells empty or marked unverified?
Because we could not confirm that detail on the vendor's own pages. Rather than filling the gap with a figure from elsewhere, we mark it and say why on the tool's profile.
Can I compare more than two tools?
Not at once. Two columns keep the differences readable and force a real decision. Remove either selected tool to replace it, or clear both to start a new pair.
Every figure in the table above comes from the linked profile, where the source and the verification date are listed. Browse all tools or read the editorial policy.