Option A: Perplexity researches; Claude drafts the brief
Best when: You want current web answers with linked sources
What it does: Perplexity researches; Claude drafts; you check sources and decide
Strong at: Cites original sources and summarises documents and webpages
Limit: Uploads limited to 40 MB per file
Free plan: Perplexity: Yes, limited; Claude: Yes, limited
Option B: ChatGPT: drafts a sourced company brief
Best when: You want drafting, file analysis and web research together
What it does: ChatGPT drafts; you check sources and decide
Strong at: Writes and summarises text; analyses files and searches the web
Limit: Vendor states hallucination risk; you must verify the facts
Free plan: Yes, limited; uploads and data analysis capped
Option C: Gemini: drafts a sourced company brief
Best when: You want drafting and summaries alongside Google tools
What it does: Gemini drafts; you check sources and decide
Strong at: Drafts and summarises text; finds information in Gmail and Drive
Limit: No image generation or file upload when signed out
Free plan: Yes, limited