pgvector-tco
pgvector cost calculator,
managed vs self-hosted.
See how much RAM your HNSW index needs, which Rivestack plan fits, and what it would roughly cost to run the same thing yourself. All figures are estimates.
pgvector TCO · Managed vs self-hosted · Flat pricing from $0
enter your workload
total rows in your vector table
1536 = OpenAI text-embedding-3-small/large; 768 = Cohere/BGE-base
halfvec / fp16 cuts index RAM roughly in half
1 node has no failover. 2 or 3 nodes add automatic failover. The extra nodes are replicas with the same data, so they buy uptime, not capacity.
Formula (estimate): vectors × dimensions × 4 bytes (fp32) × 1.3 graph overhead . Actual usage varies with HNSW parameters (m, ef_construction) and data shape.
estimate
Ready to skip the ops?
pgvector pre-installed and HNSW-tuned on dedicated NVMe. Flat pricing, free migration help.
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