YesChat vs Spellbook

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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SpellbookWriting & content

AI contract review, redlining and drafting inside Microsoft Word, priced per seat by quote

Free access
YesChat: Free access
Spellbook: Free trial only
Paid from
YesChat: USD 10 per month
Spellbook: No fixed price listed
Plans listed
YesChat: 4
Spellbook: 4
Public API
YesChat: Not confirmed
Spellbook: Not confirmed

Where YesChat and Spellbook differ

  • AccessYesChat offers free access, while Spellbook offers a free trial only.
  • Pricing checkPrices confirmed for YesChat; prices not confirmed for Spellbook.

Head to head

Each value from the tool’s profile and the vendor’s own pages

YesChat Fact Spellbook
Access and price
Free access availableFree · USD 0Free accessDiffersFree trial only
USD 10 per monthPro · billed monthly · or $8 per month, $96 billed yearlyLowest listed paid planNo fixed price listed
Free daily plan; paid from $10/monthPricing modelNo public prices; per-seat quote, 7-day free trial
4Plans listedSame4
Not confirmedPublic APINot confirmed
Not requiredCard to startNot confirmed
NoOpen sourceNot confirmed
What it is for
Trying several chat models under one metered balanceBuilt forTransactional lawyers and in-house legal teams who review and draft contracts in Word
Writing & contentCategorySameWriting & content
  • Web (desktop and mobile browser)
Platforms
  • Web
  • Microsoft Word add-in
  • Google Docs
Not listedWorks with
  • Microsoft Word
  • Google Docs
  • iManage
  • SharePoint
  • OneDrive
  • +3 more
How current
Profile sources checked
Prices confirmed · Oct 2, 2026Pricing checkDiffersPrices not confirmed · Oct 17, 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

YesChat

Prices confirmed · Oct 2, 2026
  • FreeUSD 0
  • ProUSD 10 per monthbilled monthly · or $8 per month, $96 billed yearly
  • UltraUSD 20 per monthbilled monthly · or $16 per month, $192 billed yearly
  • MaxUSD 50 per monthbilled monthly · or $40 per month, $480 billed yearly
Plan conditions and sources

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
Plan conditions and sources
Official pricing pages, captured from our server in Germany; regional prices or currency can differ
YesChat official pricing page screenshot with plan names
YesChatOfficial pricing pageyeschat.aiCaptured
Spellbook official pricing page screenshot with plan names
SpellbookOfficial pricing pagespellbook.comCaptured

Strengths and limits

YesChat

Strengths

  • One balance for several providers: Switch between OpenAI, Anthropic, Google, xAI and DeepSeek models without separate subscriptions.
  • Visible cost per reply: Receipts show weighted tokens and credits, and failed requests are charged 0 credits.
  • Usable free tier: Fifteen daily agent-mode messages need no card and reset each day.

Limits to plan around

  • Model access is plan-gated: Free excludes Claude and Gemini; Opus 5 needs Ultra, while GPT-6 Astra and Claude Fable 5.1 need Max.
  • Narrow refund window: Refunds are limited to 3 days and to accounts that used no more than 20% of Advanced Credits.
  • Broad license over submitted content: The terms grant the operator a worldwide, perpetual license to user content, including publication to others.

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.

See both products

The two products on their official sites
YesChat homepage screenshot showing the official landing page
YesChatOfficial homepageyeschat.aiCaptured
Spellbook homepage screenshot showing the official landing page
SpellbookOfficial homepagespellbook.comCaptured
Product pages of both tools
YesChat features page screenshot showing the product interface
YesChatOfficial siteyeschat.aiCaptured

Start from your task, not from a winner.

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.

How we review

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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.