Comparison
catalyst vs cognee
Verdict
Pick catalyst when catalyst is primarily C#; cognee is Python; pick cognee when cognee is primarily Python; catalyst is C#.
Markdown twin · catalyst alternatives · cognee alternatives
GraphCanon updated today
vs
Trust & integrity
| Signal | catalyst | cognee |
|---|---|---|
| Maintenance | Active (18d since push) As of today · github_public_v1 | Very active (0d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Organization account As of today · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| Security (OSV) | No lockfile As of today · none | No lockfile As of today · none |
Tagline
- catalyst
- 🚀 Catalyst is a C# Natural Language Processing library built for speed. Inspired by spaCy's design, it brings pre-trained models, out-of-the box support for training word and document embeddings, and
- cognee
- Cognee is the open-source AI memory platform for agents.
Stars
- catalyst
- 854
- cognee
- 28k
Forks
- catalyst
- 84
- cognee
- 2.7k
Open issues
- catalyst
- 49
- cognee
- 620
Language
- catalyst
- C#
- cognee
- Python
Adopt for
- catalyst
- -
- cognee
- When evaluating Cognee, consider its self-hosted persistence capability and the extensive support it offers through multiple programming languages (Python, Rust, TypeScript). It uses vector databases to provide efficient
Persona
- catalyst
- -
- cognee
- -
Runtime
- catalyst
- -
- cognee
- -
License
- catalyst
- MIT
- cognee
- Apache-2.0
Last pushed
- catalyst
- Jun 22, 2026
- cognee
- Jul 11, 2026
Categories
- catalyst
- Vector Databases, Model Training
- cognee
- Vector Databases, AI Agents
Trust and health
Maintenance
- catalyst
- Active (82%)
- cognee
- Very active (96%)
Days since push
- catalyst
- 18d
- cognee
- 0d
Open issues (now)
- catalyst
- 49
- cognee
- 620
Full report
- catalyst
- Trust report
- cognee
- Trust report
Choose catalyst if…
- catalyst is primarily C#; cognee is Python.
- License: catalyst is MIT, cognee is Apache-2.0.
- Tags unique to catalyst: embeddings, csharp, ai, artificial-intelligence.
- Also covers Model Training.
When NOT to use catalyst
- Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate.
- Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge.
Choose cognee if…
- cognee is primarily Python; catalyst is C#.
- License: cognee is Apache-2.0, catalyst is MIT.
- Tags unique to cognee: vector-database, python, docker, rust.
- Also covers AI Agents.
- cognee ships Docker support for self-hosted deployment.
- - You are developing AI agents that require persistent long-term memory across different sessions.
When NOT to use cognee
- - Your project does not require persistent memory storage, or your agents operate fully within short-lived sessions without the need for past context.
- - You are aiming for minimal setup overhead and prefer a cloud-based solution that requires less maintenance on your infrastructure side.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (curiosity-ai/catalyst) · observed Jul 11, 2026
- GitHub forks (curiosity-ai/catalyst) · observed Jul 11, 2026
- Last push (curiosity-ai/catalyst) · observed Jun 22, 2026
- License file (MIT) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (topoteretes/cognee) · observed Jul 11, 2026
- GitHub forks (topoteretes/cognee) · observed Jul 11, 2026
- Last push (topoteretes/cognee) · observed Jul 11, 2026
- License file (Apache-2.0) · observed Jul 11, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: catalyst 854 · cognee 28k (synced Jul 11, 2026).
Common questions
- What is the difference between catalyst and cognee?
- catalyst: 🚀 Catalyst is a C# Natural Language Processing library built for speed. Inspired by spaCy's design, it brings pre-trained models, out-of-the box support for training word and document embeddings, and. cognee: Cognee is the open-source AI memory platform for agents.. See the comparison table for live GitHub stats and shared categories.
- When should I choose catalyst over cognee?
- Choose catalyst over cognee when catalyst is primarily C#; cognee is Python; License: catalyst is MIT, cognee is Apache-2.0; Tags unique to catalyst: embeddings, csharp, ai, artificial-intelligence; Also covers Model Training.
- When should I choose cognee over catalyst?
- Choose cognee over catalyst when cognee is primarily Python; catalyst is C#; License: cognee is Apache-2.0, catalyst is MIT; Tags unique to cognee: vector-database, python, docker, rust; Also covers AI Agents; cognee ships Docker support for self-hosted deployment; - You are developing AI agents that require persistent long-term memory across different sessions.
- When should I avoid catalyst?
- Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. Model Training: Try prompting and RAG first; fine-tuning is the answer to style/format, not missing knowledge.
- When should I avoid cognee?
- - Your project does not require persistent memory storage, or your agents operate fully within short-lived sessions without the need for past context. - You are aiming for minimal setup overhead and prefer a cloud-based solution that requires less maintenance on your infrastructure side.
- Is catalyst or cognee more popular on GitHub?
- cognee has more GitHub stars (27,564 vs 854). Stars measure visibility, not whether either tool fits your constraints.
- Are catalyst and cognee open source?
- Yes - both are open-source projects on GitHub (catalyst: MIT, cognee: Apache-2.0).
- Where can I find alternatives to catalyst or cognee?
- GraphCanon lists graph-backed alternatives at catalyst alternatives and cognee alternatives (catalyst markdown twin, cognee markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, catalyst or cognee?
- catalyst: Active. cognee: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for catalyst and cognee?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: catalyst trust report; cognee trust report.