vector databases 100% Deterministic Spec Audit

Cloudflare Vectorize vs Supabase Vector

Comparing architecture, runtime limits, open-source licenses, and monthly costs for autonomous agent pipelines.

Supabase Vector

Supabase Inc. (Paul Copplestone & Ant Wilson)

Detailed Specifications & Compatibility Matrix

Extracted directly from GitHub REST API & official developer documentation

Technical Feature / Metric Cloudflare Vectorize Supabase Vector
Developer / Organization Cloudflare Inc. Supabase Inc. (Paul Copplestone & Ant Wilson)
Open-Source Engine ✓ Open Source (Apache-2.0) ✓ Open Source (Apache-2.0)
GitHub Stars (Repo/SDK) ★ 4,660 GitHub Stars ★ 113,917 GitHub Stars
Core Repository Language TypeScript TypeScript
Supported SDK Clients
typescriptjavascriptpythoncurl
typescriptpythondartswiftgo
Self-Hosted Deployment Hosted Only ✓ Supported
Docker / Container Ready Managed ✓ Official Image
Model Context Protocol (MCP) ✓ Native MCP ✓ Native MCP
Billing Architecture usage based hybrid
Developer Free Tier
✓ Yes

30M queried dimensions + 5M stored dimensions / mo

✓ Yes

500MB database storage (2 free projects)

Entry Paid Tier (Monthly) $5 USD / mo $25 USD / mo
Pricing & Cost Architecture Free tier includes 30 million queried vector dimensions and 5 million stored vector dimensions per month. Paid Workers plan ($5/mo base) bills $0.01 per 1M queried dimensions. Free tier offers 2 managed projects with 500MB database storage (~250k vectors). Pro plan starts at $25/mo with 8GB storage and scalable compute add-ons.
Key Engineering Insight Runs directly on Cloudflare's 300+ global edge data centers alongside Workers AI, eliminating cross-cloud network roundtrips during RAG retrieval. Allows developers to store relational application state, user authentication (Row Level Security), and high-dimensional vector embeddings inside a single ACID-compliant Postgres database.

Strengths & Trade-Offs

Objective engineering evaluation of both platforms

Cloudflare Vectorize Evaluation

Key Advantages

  • ✓ Zero cold-start edge execution: queries execute within milliseconds in 300+ global data centers
  • ✓ Co-located with Workers AI: run embeddings and vector lookups within the same edge runtime
  • ✓ Generous free tier allowing millions of dimensional queries every month at zero cost

Limitations & Trade-Offs

  • ✕ Maximum index size of 5 million vectors per index on standard plans (designed for distributed edge retrieval)
  • ✕ Requires building within or interfacing through the Cloudflare Workers ecosystem

Supabase Vector Evaluation

Key Advantages

  • ✓ Combines vector search with full Postgres ecosystem: Row Level Security, ACID transactions, and relational joins
  • ✓ Instant auto-generated client APIs (REST, GraphQL, real-time WebSockets) with zero backend boilerplate
  • ✓ Permissive open-source stack with official Docker compose deployment for self-hosting on any VPS

Limitations & Trade-Offs

  • ✕ Free tier projects pause automatically after 7 days of inactivity (resumed upon dashboard login)
  • ✕ Dedicated standalone C++ vector stores can achieve higher raw QPS for multi-million vector datasets

Source Quotes

Direct excerpts from official documentation backing our extracted specifications

Cloudflare Vectorize Documentation Proof

PRICING:

"Workers Paid plan starts at $5/month and charges $0.01 per million queried vector dimensions."

FREE_TIER:

"Free tier includes 30 million queried dimensions and 5 million stored dimensions each month."

SELF_HOSTED:

"Serverless cloud service natively integrated into the Cloudflare global network."

Supabase Vector Documentation Proof

PRICING:

"Pro plan is $25/month including 8GB disk space, 100k monthly active users, and no project pausing."

FREE_TIER:

"Free tier includes 2 free projects, 500MB database space, and up to 50,000 monthly active users."

SELF_HOSTED:

"Supabase is open source and self-hostable with Docker."

Frequently Asked Questions: Cloudflare Vectorize vs Supabase Vector

Architectural trade-offs and decision criteria

Is Cloudflare Vectorize or Supabase Vector cheaper for developers?

Cloudflare Vectorize has a starting price of $5/mo (usage based), while Supabase Vector starts at $25/mo (hybrid). Cloudflare Vectorize includes a free tier (30M queried dimensions + 5M stored dimensions / mo). Supabase Vector offers a free tier (500MB database storage (2 free projects)).

Can I self-host Cloudflare Vectorize and Supabase Vector in my own infrastructure?

Cloudflare Vectorize is a cloud-managed service only. In comparison, Supabase Vector is available for self-hosting with Apache-2.0 licensing.

Do Cloudflare Vectorize and Supabase Vector support the Model Context Protocol (MCP)?

Cloudflare Vectorize has native support for MCP servers. Supabase Vector fully supports Model Context Protocol integrations.

Which programming languages have official SDKs for Cloudflare Vectorize vs Supabase Vector?

Cloudflare Vectorize provides official SDKs in: typescript, javascript, python, curl. Meanwhile, Supabase Vector supports: typescript, python, dart, swift, go.