Research and sources

For teaching preparation, a tool that shows its sources beats a tool that sounds more fluent. The test we apply is simple: ask it something where you already know the answer is contested, and see whether it says so or picks a side silently.

Clear

6 tools

Claude

Conversational assistant with long-document handling, often used for working through source material and drafting teaching notes.

Freemiumverified.unverified

Gemini

Google’s assistant, with integration into Google Workspace documents and slides.

Freemiumverified.unverified

Kimi

Chinese conversational assistant known for long-context document and file handling.

Freemiumverified.unverified

NotebookLM

Grounds its answers in documents you upload, and cites the passage each answer came from.

Freemiumverified.unverified

Perplexity

Answer engine that returns citations alongside its answers.

Freemiumverified.unverified

Quark

Search and study assistant positioned around work and learning tasks.

Freemiumverified.unverified