The #1 platform for pgvector. Open-source Firebase alternative with built-in vector search via Postgres.
Vespa is an open-source search and recommendation engine combining vector search, full-text search, and structured queries.
Core capabilities each platform advertises.
What each tool does well, and the limitations to keep in mind.
Pros
Cons
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.