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What each tool publishes, before anyone gets you on a call.

Price, legal sources and citation checking, taken from each company’s own pages and dated. Where a rival is stronger, we say so.

Since Mata v. Avianca in 2023, courts have fined lawyers, suspended them, referred them for discipline and removed them from cases over fabricated and misdescribed citations. Whichever tool you choose, the citations in your brief are yours.

See the running list of sanctions cases

What each tool publishes.

Rows a buyer can check without a sales call. Each Harvey and ChatGPT cell comes from that company’s own pages, read September 14, 2026.

What CaseRead, Harvey and ChatGPT publish
What mattersCaseReadHarveyChatGPT OpenAI
Lowest published individual priceLite $15 a month; Pro $149 a monthNot published; demo request1Free; Go $8 and Plus $20 a month2
Start without a cardNo: every plan takes a card. The demo needs no account.No self-serve sign-up or trial found1Free plan2
Checks the citations in a draftTwo checks: does the source exist, and does it support the claim?No draft cite-check listed on its platform pages5None listed2
Your own documentsProject files and the public law, in one conversationVaults of up to 100,000 documents3File uploads and Projects2
WordCaseRead for Word, in a side panelHarvey for Word4Word not listed; Excel, PowerPoint and Sheets extensions are2
TermMonth to month, or yearlyNot published1Monthly; Business can bill yearly2

Sources

  1. Harvey, homepage (“Request a Demo”) and harvey.ai/pricing (“404 Page Not Found”). Read September 14, 2026. harvey.ai and harvey.ai/pricing
  2. OpenAI, “ChatGPT pricing.” Read September 14, 2026. chatgpt.com/pricing
  3. Harvey, “Vault.” Read September 14, 2026. harvey.ai/platform/vault
  4. Harvey, “Ecosystem.” Read September 14, 2026. harvey.ai/platform/ecosystem
  5. Harvey, platform pages (Agents, Vault, Knowledge, Spaces, Ecosystem). Read September 14, 2026. harvey.ai/platform

Every source was read on September 14, 2026. Prices and features change, so confirm current terms with each company. Product names are trademarks of their owners; naming them implies no affiliation or endorsement.

Compare it on your own brief.

Plans start at $15/mo. Pro is $149 a month.