Why this is on the list
Claude is used by the ATTP team for research synthesis, writing drafts, reviewing submissions, and thinking through problems. The free tier is generous. The key to using it well is giving it full context — paste in your brief, your research notes, your problem statement — and ask it to help you think, not just to produce an answer. It is particularly strong at explaining complex sector problems in plain language, which is useful when you are working on an unfamiliar brief.