Option A: Gemini Notebook: maps the sources, drafts the agenda
Best when: You want an AI first pass, with checks before drafting.
What it does: Gemini Notebook maps and drafts; you and the employee check.
Strong at: Answers are grounded in your sources.
Limit: Sources are capped at 500,000 words or 200 MB each.
Free plan: Yes
Option B: ChatGPT: summarises and drafts, you check
Best when: You want ChatGPT to summarise and draft, with checks between.
What it does: ChatGPT summarises and drafts; you and the employee check.
Strong at: Writes, rewrites and summarises text.
Limit: Free plan limits file uploads, so paste text instead.
Free plan: Yes, limited (images, voice, file uploads)
Option C: ChatGPT drafts, LanguageTool polishes, you decide
Best when: You want a wording pass on the checked draft.
What it does: ChatGPT drafts; LanguageTool suggests fixes; you decide each edit.
Strong at: LanguageTool checks grammar, spelling and style in 30+ languages.
Limit: LanguageTool free version shows only some errors.
Free plan: Yes, limited (ChatGPT uploads; LanguageTool shows some errors)