Threadline vs Supermemory
Supermemory is fast. Threadline is 8x faster.
And Threadline gives users control over their own context. Supermemory doesn't.
| Feature | Threadline | Supermemory |
|---|---|---|
| Retrieval latency | ~38ms* | <300ms |
| User-owned context | ||
| OAuth-style grants | ||
| MCP compatible | ||
| Hard delete | ||
| Free tier | 10K/mo | Limited |
* inject() is a direct lookup, not vector search. Intelligence happens at update() time.
Why the speed difference
Supermemory performs semantic vector search at retrieval time — fast for its approach, but inherently slower than a direct lookup. Threadline does the intelligence at update() time. inject() is just a database read. That's why it's ~38ms* vs <300ms.
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