Open source frameworks - verified
Cognee
Cognee is listed under open source frameworks. Cognee's README says using Postgres as a graph store is released as a demo feature, and that the production-ready version is a licensed product. No date given. Its first listed price, in its own words: $0/month (Free plan). Stated on its pages: a knowledge graph, automatic extraction, an MCP server, self-hosting and retention or deletion controls. Read from the product's own pages on October 18, 2026.
Read from docs.cognee.ai, cognee.ai, github.com. Docs - Pricing - License - Compare every memory product
What changed
- Postgres graph is a demoCognee
Cognee's README says using Postgres as a graph store is released as a demo feature, and that the production-ready version is a licensed product. No date given.
“Using Postgres as a graph store is currently released as a demo feature. The production-ready version is available as a licensed product.”
github.com
- Launch stage, as stated
- Not stated
No launch-stage label on the pricing page or README.
How Cognee charges
Every price line Cognee states, in its own words and units, with the quote. Nothing is converted.
| Price, in the product's words | Unit | Quote and source |
|---|---|---|
| $0/monthinferredInferred: Plan name from the column or card the price sits in on the pricing page; the quoted text does not name the plan. | Free plan | “$0/month” “1 workspace and 1M tokens included” “Unlimited API calls” |
| $1.00 per 1M tokensinferredInferred: Plan name from the column or card the price sits in on the pricing page; the quoted text does not name the plan. | per 1M tokens (Standard) | “$1.00/ 1M tokens” |
| $5 per additional workspaceinferredInferred: Plan name from the column or card the price sits in on the pricing page; the quoted text does not name the plan. | per workspace (Standard) | “+ $5 per additional workspace” |
| BYOC engagementinferredInferred: Plan name from the column or card the price sits in on the pricing page; the quoted text does not name the plan. | Enterprise | “Delivered as a BYOC engagement: your own cloud, dedicated support, and SLAs for memory at scale.” |
Memory model
- Memory types and scopes
Permanent memory and session memory
“Store content or code in permanent memory, or in a session when a session ID is supplied.”
github.com - Storage backend
Entire memory layer can run on a single Postgres instance (since cognee 1.0)
“Since cognee 1.0 you can run the entire memory layer on a single Postgres instance.”
github.com - Knowledge graph
Yes
“Text becomes entities, relationships, and searchable chunks; code becomes a graph of symbols and dependencies.”
github.com - Retrieval
Graph, vector or code context selected at query time
“At query time, retrieval selects relevant graph, vector, or code context.”
github.com - Automatic extraction
Yes, graph extraction (local GLiNER model when no LLM key)
“With no LLM key configured, Cognee extracts the graph with the local GLiNER model and embeds with a local embedding model; both download on first use.”
github.com
MCP, SDKs and integrations
- Official MCP server
Yes, cognee-mcp server in the Cognee repository
“Build memory for Agents and query from any client that speaks MCP”
github.com - SDKs
Python
“Python applications · Python API reference”
github.com TypeScript
“TypeScript applications · TypeScript SDK”
github.com Rust (Cognee-RS)
“Rust applications · Cognee-RS”
github.com - Framework integrations
Claude Code plugin
“Claude Code memory plugin · Install and configure the plugin”
github.com OpenClaw plugin
“OpenClaw memory plugin · Install @cognee/cognee-openclaw”
github.com
Self-hosting, license, retention and compliance
- Self-hosting
Yes, open source
“Cognee is open source. Run the full memory engine locally or on your own stack”
cognee.ai - License
Apache License 2.0
“Apache License Version 2.0, January 2004”
github.com - Retention and deletion
forget: remove an item or dataset
“forget · Remove a specific item or dataset. · Delete memory”
github.com - Compliance
- Not stated
Not stated on the pricing page or README.
Vendor-stated claims
Benchmark and latency figures as Cognee states them about itself. Vendor-stated, not measured.
- Vendor-stated
Vendor-stated: 0.79 at 100K tokens
“100K tokens · 0.79 · Fixed hybrid retrieval; four evaluation rounds over 20 questions from one held-out conversation.”
github.com
FAQ
How much does Cognee cost?
In Cognee's own terms: $0/month (Free plan); $1.00 per 1M tokens (per 1M tokens (Standard)); $5 per additional workspace (per workspace (Standard)); BYOC engagement (Enterprise). As of October 18, 2026; prices are not converted.
Does Cognee build a knowledge graph?
Yes, per the vendor: "Text becomes entities, relationships, and searchable chunks; code becomes a graph of symbols and dependencies."
Can I self-host Cognee?
Per the vendor: "Cognee is open source. Run the full memory engine locally or on your own stack" License: Apache License 2.0.
What changed at Cognee (Postgres graph is a demo)?
Cognee's README says using Postgres as a graph store is released as a demo feature, and that the production-ready version is a licensed product. No date given.
Sources
Last verified from each product's own docs, pricing pages, READMEs and license files; every quote was string-matched against the page that day. This is not a benchmark. Prices are shown in the product's own unit and change without notice, so check the linked source before you commit.
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