Pick your note system first. The AI is the easy part and it is all converging anyway. Notion AI, Mem, and Obsidian differ enormously in where your notes live, and that is the decision. - Notion AI: wins if your notes are already in Notion. Summaries, drafts, workspace questions, all seamless because it is one product. - Mem: the automatic organization pitch. It files things for you, which is catnip if your notes are a beautiful mess. - Obsidian: plugin-based AI, local-first. Your notes are plain text on your disk, yours forever. You assemble the AI yourself. The tradeoff nobody leads with: lock-in versus longevity. Your notes are the hardest thing you own to move, so pick for the decades, not the demo. Run an AI tool alternatives comparison on the system, not the feature list. StackAudit recommends the optimal 3 to 5 tool AI stack for your profession with pricing and setup guides for $4.99 one-time unlock.