---
title: "hermes-agent vs pgvector"
type: "comparison"
canonical_url: "https://www.graphcanon.com/compare/nousresearch-hermes-agent-vs-pgvector-pgvector"
tools: ["nousresearch-hermes-agent", "pgvector-pgvector"]
---

# hermes-agent vs pgvector

Neutral, constraint-first comparison with live GitHub stats.

| | [hermes-agent](/tools/nousresearch-hermes-agent.md) | [pgvector](/tools/pgvector-pgvector.md) |
| --- | --- | --- |
| Tagline | The self-improving AI agent built by Nous Research | Open-source vector similarity search for Postgres |
| Stars | 210,880 | 22,107 |
| Forks | 38,703 | 1,232 |
| Open issues | 26,588 | 14 |
| Language | Python | C |
| License | MIT | Other |
| Categories | AI Agents | Data & Retrieval |

---

**Machine-readable endpoints**

- JSON: [`/api/graphcanon/graph?tool=nousresearch-hermes-agent`](/api/graphcanon/graph?tool=nousresearch-hermes-agent)
- LLM index: [/llms.txt](/llms.txt)
- Full corpus: [/llms-full.txt](/llms-full.txt)

_GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_