With Typesense the entire vector index is in memory, so we prioritize performance.
We also prioritize keeping the developer experience as simple as possible, so we limit the options you can configure with vector search and provide good defaults, to reduce the learning curve. Pinecone on the other hand has several knobs you can use to fine-tune, but that also makes it a bit more complex.
Finally, Typesense is open-source and self-hostable, vs Pinecone is proprietary SaaS.