Obsidian + AI Plugins
you already have a large Obsidian vault, your primary need is search-my-notes-with-AI, or you want a local-first solution with no cloud dependency.
← all comparisons
compare ·Obsidian + AI Plugins vs. 3ngram
Obsidian is a knowledge base.
3ngram is shared work memory with follow-through. different problems, complementary tools. many 3ngram users keep Obsidian for long-form notes and use 3ngram for what Claude, ChatGPT, Cursor, and Codex need to carry forward.
at a glance ·7 capabilities
Obsidian + AI Plugins vs. 3ngram, side by side.
| capability | 3ngram | Obsidian + AI Plugins |
|---|---|---|
| what it is | shared memory and follow-through for AI work | notes app with AI plugin ecosystem |
| memory model | typed — decisions, commitments, blockers, patterns | markdown files (flat, user-organized) |
| AI integration | native MCP server (protocol-level) | plugin-dependent (RAG over vault) |
| follow-through | overdue tracking, stale commitments, blocker surfacing | none (manual task tracking) |
| works in | any MCP client (Claude, ChatGPT, Cursor, Codex) | Obsidian app only |
| AI mode | push — session briefings surface what needs attention | pull — you ask, plugin searches |
| cross-platform AI | yes, same memory in every AI tool | no, AI stays inside Obsidian |
3ngram
you use multiple AI tools and want persistent, typed work context across all of them — with decisions, commitments, blockers, source context, and proactive briefings.
related reading ·where else this shows up
Obsidian excels at storing knowledge. 3ngram carries AI work forward.
The two are complementary, not competing.