Test AI hacking skills and explore language model limitations through the Gandalf interactive challenge.

gandalf.lakera.ai
Gandalf homepage screenshot

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

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

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Gandalf FAQ

What is Gandalf?
Test AI hacking skills and explore language model limitations through the Gandalf interactive challenge.
Can I use Gandalf in my browser?
Yes. Gandalf works on the web, so you can use it from any modern browser without installing anything.
Is Gandalf working?
gandalf.lakera.ai responded when checked on Oct 5, 2026. Its current availability has not been confirmed.
What are the best alternatives to Gandalf?
Popular alternatives to Gandalf include Tensor Trust, Tensor Trust, OpenAI Guide, and AnimatedLLM. We list 7+ options matched by topic, tags and features.
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