---
title: "penzai"
type: "tool"
slug: "google-deepmind-penzai"
canonical_url: "https://www.graphcanon.com/tools/google-deepmind-penzai"
github_url: "https://github.com/google-deepmind/penzai"
homepage_url: "https://penzai.readthedocs.io/"
stars: 1893
forks: 70
primary_language: "Python"
license: "Apache-2.0"
archived: false
categories: ["developer-tools"]
tags: ["fine-tuning", "interpretability", "jax", "neural-networks", "python", "visualization"]
updated_at: "2026-07-11T11:38:42.323283+00:00"
---

# penzai

> A JAX research toolkit for building, editing, and visualizing neural networks.

A JAX research toolkit for building, editing, and visualizing neural networks.

## Facts

- Repository: https://github.com/google-deepmind/penzai
- Homepage: https://penzai.readthedocs.io/
- Stars: 1,893 · Forks: 70 · Open issues: 17 · Watchers: 20
- Primary language: Python
- License: Apache-2.0
- Last pushed: 2025-06-22T05:45:13+00:00

## Trust & health

_Signals computed from public GitHub metadata. Not a security guarantee._

- Maintenance: Dormant (computed 2026-07-11T11:38:40.884Z)
- Security scan: No lockfile (0 critical, 0 high, 0 medium, 0 low) · last scan 2026-07-11T11:38:41.358Z
- Full report: [trust report](/tools/google-deepmind-penzai/trust.md) · [JSON](https://www.graphcanon.com/api/graphcanon/tools/google-deepmind-penzai/trust)

## Categories

- [Developer Tools](/categories/developer-tools.md)

## Tags

fine-tuning, interpretability, jax, neural-networks, python, visualization

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_+ 2 more not listed._

---

**Machine-readable endpoints**

- JSON: [`/api/graphcanon/tools/google-deepmind-penzai`](/api/graphcanon/tools/google-deepmind-penzai)
- 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/_