Think & research
ChatGPT, Claude or Gemini
Use the assistant you already have. Explore options, understand unfamiliar work and draft interview questions. Give it your evidence; ask for sources and uncertainty. On eligible paid plans, Claude Desktop can also work on files in a folder you allow; this was called Cowork.
Cost (checked 13 Oct 2026): Free tiers, with optional paid plans: ChatGPT, Claude, Gemini.
Leave with: a decision, a reason and a next test.