Play Tensor Trust to explore prompt injection attacks and defenses through interactive challenges.
Gandalf
Test AI hacking skills and explore language model limitations through the Gandalf interactive challenge.

About Gandalf
Test AI hacking skills and explore language model limitations through the Gandalf interactive challenge.
Gandalf is a website in our AI Learning & Guides collection, part of the AI & Machine Learning directory. It runs in your web browser, so there's nothing to install.
People usually find Gandalf when they’re looking for language models.
Not quite what you need? Close alternatives include Tensor Trust, Tensor Trust, and OpenAI Guide — compare them below.
Gandalf at a glance
- Website
- gandalf.lakera.ai
- Category
- AI & Machine Learning › AI Learning & Guides
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Gandalf alternatives
Tools and sites you could use instead, ranked by how closely they match.
Tensor Trust offers an interactive game about testing AI security and model robustness.
OpenAI’s API guide covers prompt engineering strategies and tactics for working with large language models.
AnimatedLLM uses animations to explain the mechanisms behind large language models.
The Prompt Engineering Guide teaches prompt engineering and provides learning materials about language models.
This blog covers machine learning applications, with a focus on PyTorch examples and deep learning code.
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