Where ChatGPT fits
ChatGPT fits broad adoption: general productivity, apps, data analysis, files, images, custom workflows, business connectors and teams that need one default assistant across departments.
Where Claude fits
Claude fits teams that do careful document work: legal summaries, support macros, policy drafts, grant proposals, product reasoning, technical writing and collaborative analysis.
Decision checklist
Check SSO, data retention, training policy, connectors, file limits, user management, audit needs, pricing, model access and whether the assistant works inside the apps your team already uses.
Practical recommendation
Use the same prompt in both tools. Judge the result by factual stability, tone, source discipline, structure, actionability, privacy fit and how much human editing remains. A model that wins one task can lose the next.