Lex
Revise a shared draft with focused research, writing-sample style guides, and line-level feedback beside the text.
Sources checked 3 October 2026.
PlansFree Free collaboration; Pro pricing shown after login
- Free
- Free
- 30 Ask Lex messages/day; five saved-prompt runs/month; limited daily processing budget.
Free includes 30 Ask Lex messages per day and five saved-prompt runs per month.
Pro adds premium models and larger allowances; purchase options appear after login.
View current plans (opens in a new tab)AI & setupAI includedAttach focused context
Knowledge Bases can combine selected documents and sources; Lex recommends targeted material rather than a whole-novel data dump.
Where it worksWebWeb
Documents support live collaboration, read-only links, and named versions with comments.
Usage & termsFree AI allowanceDaily and monthly free allowances
Free has daily Ask Lex and monthly saved-prompt limits plus a processing budget.
Knowledge Bases
Give the editor a focused research library
Knowledge Bases gather PDFs, Word documents, pasted notes, public web pages, YouTube transcripts, and selected Google Drive files. They can also refer to current Lex documents or folders, keeping background material linked to evolving work.
Separate collections can hold character notes, an outline, research, or earlier chapters. Lex recommends targeted material instead of a whole-book data dump; reusable collections can be combined when a document needs more context.
Style Guides
Build voice guidance from actual samples
Style Guides combine examples of writing with instructions. Lex can analyze attached samples and generate guidance, which the author can use across documents or set as a default for a folder.
Different guides can serve fiction, newsletters, or other kinds of writing.
Line-level Checks
Review suggestions where the words appear
Checks highlight passages for grammar, excess wording, clichés, and clarity. Open a highlight to inspect the suggestion, then accept it, change it, or ignore it. Lex can also explain the reason for a recommendation.
Collaboration and AI access
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Collaborate and keep earlier feedback
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Share a link to edit together or a read-only link for readers. Named versions save both document text and comments, so a revision can retain the feedback that led to it.
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Keep AI access proportional to the project
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Free provides 30 Ask Lex messages each day, five saved-prompt runs each month, and a limited processing budget. Pro offers premium model access and larger allowances, with purchase options shown after login.
Feature details & official sources
Purpose and capability information checked 3 October 2026.
Platform and pricing reference: 24 October 2026.
Recorded requirements and limits
- Create an account and attach relevant context. Lex recommends focused chapters rather than a whole novel in one knowledge base.
- Pro adds premium models and larger AI allowances. Pricing options are shown to existing users after login.
- Current editor, collaboration, and reading links (opens in a new tab)
- Official feature index (opens in a new tab)
- Knowledge Bases and manuscript context (opens in a new tab)
- Style Guides from samples and instructions (opens in a new tab)
- Line-level checks and suggestion review (opens in a new tab)
- Versions retain text and comments (opens in a new tab)
- Free AI limits (opens in a new tab)
- Pro access information (opens in a new tab)
Information may be inaccurate. Confirm details on the official website. Report errors to [email protected].