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Open Source (Free)Free
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All pgvector Plans & Pricing

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Open Source (Free)

  • Free forever, PostgreSQL extension
  • PostgreSQL 13+ supported
  • IVFFlat and HNSW indexing
  • Exact and approximate nearest neighbor search
  • L2, inner product, and cosine distance
  • Installable via apt, brew, Docker, PGXN, conda-forge
  • Works with all hosted Postgres providers
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Quick Answer
Last verified:
Estimate

pgvector costs Free to Free per month as of August 2026 including a free tier. Plan: Open Source (Free) (free). Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: Yes

pgvector offers 1 pricing tiers: Open Source (Free). The Open Source (Free) plan is teams already running postgres who want vector search without a separate database.

Compared to other vector databases software, pgvector is positioned at the budget-friendly price point.

  • 8 documented hidden costs beyond list price
  • Contracts auto-renew — 30, 60, or 90 days before the renewal date
  • G2 rating: 3.8 out of 5 from 12 reviews (as of Jun 2026)
Last verified: | Sources: 1 pricing pages and reviews

How much does pgvector cost?

pgvector offers a free plan with 0 paid tiers from $Infinity to $0/month. Plans include Open Source (Free) (free).

pgvector Pricing Overview

pgvector has 1 pricing plans, including a free tier. Paid plans range from $0 to $0/month. The Open Source (Free) plan is free and is best for teams already running postgres who want vector search without a separate database.

pgvector contracts auto-renew, requiring 30, 60, or 90 days before the renewal date notice to cancel.

There are at least 8 documented hidden costs beyond pgvector's list price, including implementation, training, and add-on fees.

This pricing was last verified in July 27, 2026 from 1 independent source.

Try pgvector Free
pgvector is a free, open-source PostgreSQL extension that adds vector similarity search to any Postgres database. There is no software cost — pgvector itself is free under the PostgreSQL License. Infrastructure costs depend entirely on how you host Postgres: self-hosting on a $5–$15/month VPS is common for small projects, while cloud-hosted Postgres (Supabase, AWS RDS, Neon) adds its own fees.

How pgvector Pricing Compares

Compare pgvector pricing against top alternatives in Vector Databases.

Chroma $0-$250/mo Compare → Qdrant $0/mo Compare → MongoDB Atlas Vector Search $0-$33.26 per hour Compare →

Compare pgvector vs Alternatives

Before committing to pgvector, compare pricing with these 3 alternatives in the same category.

VSChroma
Free

Growing teams needing Slack support

Full comparison
VSQdrant
Free

Testing and prototypes

Full comparison
VSMongoDB Atlas Vector Search
Free

Very small production apps

Full comparison

All pgvector alternatives & migration guides

What Companies Actually Pay for pgvector

Review scores
G2 3.8out of 5 (12)
Third-party review aggregates, as of Jun 2026
Top pricing complaints
Steep learning curve for configurationResource-intensive setup and management

How pgvector Pricing Compares

Software Starting Price Top Price
pgvector Custom Custom
Chroma Free $250/month
LanceDB Free $1000/month
Marqo Custom Custom
Milvus Free $197/month
MongoDB Atlas Vector Search Free $56.94 per hour

Detailed pricing comparisons:

Browse all Vector Databases pricing →

8 pgvector Hidden Costs Beyond the List Price

Beyond the listed price, pgvector has at least 8 documented hidden costs that can significantly increase total cost of ownership.

Watch for 8 hidden costs
  • pgvector Resource Utilization $560/month
    medium 1 source
    industry "For example, upgrading an RDS instance from xlarge to 2xlarge could add approximately $560/month."
  • Self-Hosting Setup & Maintenance $4,000–$8,000 one-time
    high 1 source
    industry "Self-hosting also incurs server costs ($400–$800/month), initial setup (around 40 hours, or $4,000–$8,000 one-time at a $150/hour engineering rate), ongoing maintenance (10–15 hours/month, or $1,500–$2,250/month), monitoring ($50–$200/month), and ..."
  • Embedding & Inference Fees $0.08 per million tokens
    high 1 source
    industry "These embedding and inference costs can sometimes equal or exceed the database bill itself."
  • Reindexing Costs $8,000–$15,000 one-time
    high 1 source
    industry "For a 100-million-vector dataset, this could mean $8,000–$15,000 one-time for embedding costs, plus increased write unit consumption during migration."
  • Query Cost Scaling
    high 1 source
    industry "The same query can become 10 times more expensive as data grows from 10GB to 100GB, even if the functionality delivered to users remains the same."
  • Egress Fees $0.09/GB
    medium 1 source
    industry "Egress Fees: Moving data out of cloud-managed vector databases can incur "data exit taxes." AWS internet egress, for example, costs $0.09/GB for the first 10TB/month."
  • Performance Mismatch (Small Projects)
    low 1 source
    industry "Performance Mismatch for Small Projects: For smaller datasets, dedicated vector databases might lead to slower queries compared to simpler tools like FAISS or NumPy, making them an unnecessary hidden cost in terms of performance."
  • Complexity Tax
    medium 1 source
    industry "Complexity Tax: Integrating a vector database adds complexity for developers, requiring learning new query languages, writing wrappers, managing SDKs, and handling version mismatches."
Tip

Ask your pgvector sales rep about these costs upfront. Getting them in writing before signing can save you from surprise charges later.

Full hidden costs breakdown →

Intelligence sourced from 2 independent sources
industry G2 B2B reviews
Key claims include inline source attribution. Data verified against multiple independent sources. 9 source citations total.

pgvector Contract Terms

pgvector contracts auto-renew. Changes require 30, 60, or 90 days before the renewal date. These terms are sourced from verified buyer experiences.

Contract Terms
Auto-Renewal Yes
Cancellation Notice 30, 60, or 90 days before the renewal date
Based on 1 verified source

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