ChatPDF vs Khanmigo
A detailed comparison to help you choose between ChatPDF and Khanmigo.
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Verdict: Khanmigo wins
Khanmigo scores 4.2/5, edging out ChatPDF at 3.6/5. US K-12 students, families and teachers who want curriculum-aware tutoring that teaches rather than answers.
ChatPDF Upload PDFs and ask questions directly to them with AI | Khanmigo AI tutor by Khan Academy | |
|---|---|---|
| Rating | 3.6 (1 review) | 4.2 (1 review) |
| Pricing Model | freemium | paid |
| Starting Price | Free tier available | From $4/mo |
| Best For | Students and researchers who want fast, page-cited answers from individual papers, contracts or manuals without committing to a heavy research platform. | US K-12 students, families and teachers who want curriculum-aware tutoring that teaches rather than answers. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tier | — |
| Visit ChatPDF → | Visit Khanmigo → |
ChatPDF
Pros
- + Page-level citations on answers — the single feature that makes it more trustworthy than pasting a PDF into a chatbot
- + Free tier usable without an account: two documents and twenty questions per day at time of writing
- + Scope has grown past PDFs: Word, PowerPoint, Markdown, text, YouTube videos and web pages, with multi-file folders
- + Language-agnostic — ask in a different language from the document's and it bridges them
- + Study toolkit around the chat: summaries, flashcards, slides exportable to .pptx, per chatpdf.com
Cons
- - No public pricing page; Plus appeared at $19.99/mo (USD tracker) and €16.99/mo (euro checkout) in the same month, and varied between visits
- - Underlying models are GPT-4o/GPT-4o-mini per the company — behind the frontier on hard multi-document reasoning in late 2026
- - Scanned PDFs and photos are not supported per the mobile app's own listing, contradicting older OCR marketing claims
- - Free tier caps at 20 questions/day and 120-page files; a single serious session exhausts it
- - Plus still caps files at 2,000 pages / 32MB with no overage option, which is tight for heavy contract or literature work
Khanmigo
Pros
- + Holds the no-answers line: in my session it declined to give answers and stayed Socratic across repeated prompts
- + Free for teachers at time of writing, with lesson planning, rubrics and student-work summaries included
- + Learner plan is $4/month or $44/year at time of writing, with a family variant adding child accounts and moderation alerts
- + Writing coach debates and probes evidence rather than rewriting student work
- + Voice input and read-aloud make it usable for younger students and accessibility needs
Cons
- - Self-serve access requires a US billing address; under-18s must join through a parent account
- - Curriculum alignment is US-centric (Common Core, AP, SAT); other national syllabi get a general tutor
- - Deliberately slow versus answer engines; students seeking quick homework answers will quit
- - Advanced undergraduate-level depth was uneven in my testing
- - No published learner free tier for the tutor itself; district pricing is quote-only
Frequently Asked Questions
Which is better, ChatPDF or Khanmigo?▼
Khanmigo scores higher at 4.2/5 vs 3.6/5 for ChatPDF, making it the better-rated option in our comparison.
What is the difference between ChatPDF and Khanmigo?▼
ChatPDF: ChatPDF lets you upload a PDF and ask questions about it in plain language, returning answers and summaries drawn from the document itself. It also handles other file types, videos and web pages, and bundles flashcard, writing and AI-detection tools. Khanmigo: Khanmigo is Khan Academy's AI tutor and teaching assistant. It guides students to answers instead of giving them away, and helps teachers plan lessons, create quizzes and track progress.
Is ChatPDF or Khanmigo more affordable?▼
ChatPDF starts at €0/mo, Khanmigo starts at €4/mo. Check the comparison table above for current pricing.
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