Option A: ChatGPT: drafts the pilot plan, then adds your assumptions
Best when: You want your own assumptions added
What it does: ChatGPT drafts and updates; you check and approve
Strong at: Writes, rewrites and summarises text; analyses uploaded files
Limit: Free plan limits file uploads, image generation, voice and data analysis
Free plan: Yes, limited (file uploads, voice, data analysis)
Option B: Claude: drafts the pilot plan, then lists only gaps
Best when: You want a gap list for the plan
What it does: Claude drafts and lists gaps; you judge each
Strong at: Drafts and edits text; summarises documents
Limit: Usage capped in 5-hour and weekly windows
Free plan: Yes, limited (usage resets every five hours)
Option C: ChatGPT drafts the plan; Grammarly polishes the wording
Best when: You want spelling fixed after your own check
What it does: ChatGPT drafts; Grammarly fixes spelling; you check
Strong at: Writes, rewrites and summarises text; analyses uploaded files
Limit: Grammarly: paragraph-level rewrites only in six named languages
Free plan: ChatGPT: Yes, limited; Grammarly: Yes, limited