Side-by-side comparison
Compare AI Tools
Pick two to five tools. Every cell comes from a verified record; anything unverified says so. There is no overall winner — the right choice depends on your task, budget and technical needs.
| Criterion | Khanmigo | Gemini Notebook (formerly NotebookLM) | Consensus | QuillBot |
|---|---|---|---|---|
| Provider | Khan Academy | Consensus | QuillBot (Learneo) | |
| What it is for | Khan Academy's AI tutor for learners and free AI teaching assistant for teachers. | Google's source-grounded research notebook, renamed from NotebookLM to Gemini Notebook in July 2026. | An AI search engine that answers questions using peer-reviewed research, with Deep Search for literature-review style reports. | A suite of writing tools for paraphrasing, summarising, grammar checking and AI detection, popular with students. |
| Latest confirmed model | — | — | — | — |
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| Free plan | Yes | Yes 100 notebooks per user; 50 sources per notebook | Yes 10 Pro messages and 3 Deep Searches per month | Yes Paraphraser 125 words per input; Summarizer 1,200 words; AI Detector 1,200 words per scan, 6 scans/day |
| Cheapest paid plan | Learners: $4/mo $3.67/mo billed annually $4/month or $44/year | No monthly list price | No monthly list price | Premium: $19.95/mo $8.33/mo billed annually Annual $99.95 billed yearly; monthly figure from QuillBot FAQ; regional pricing applies |
| API access | No | No | Yes · docs (opens in a new tab) | No |
| Learning curve | Beginner-friendly | Beginner-friendly | Beginner-friendly | Beginner-friendly |
| Last verified | Oct 19, 2026 | Oct 19, 2026 | Oct 19, 2026 | Oct 19, 2026 |
How to choose
Start from the rows that matter for your job: a free plan and learning curve for casual use; API access, rates and data terms for building products; context window and modalities for long documents or images. Provider claims are labelled as such; we do not rank.
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