What on earth? vs NotebookLM

Side-by-side comparison · 2026

What on earth? (freemium) and NotebookLM (free) are both AI tools in the Research & Education category. Use the comparison below to decide which fits your workflow and budget.

What on earth?

🔬 Research & Education

"What on earth?" is an AI tool that uses one-word prompts to generate engaging stories, making learning something new an enjoyable experience.

Freemium

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NotebookLM

🔬 Research & Education

Google's AI research assistant grounded in your own documents.

Free

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Feature

What on earth?

NotebookLM

Pricing

Freemium

Free