Gemini Notebook (formerly NotebookLM) is Google's source-based notebook assistant for understanding documents and building research outputs. Free tier available.
Best for: Source-grounded study and research notebooks
Duolingo's paid AI-enhanced language-learning tier for conversational practice and personalised learning features.
Best suited to
Language learners seeking paid AI conversation practice
Duolingo's paid AI-enhanced language-learning tier for conversational practice and personalised learning features.
Use guided language practice and review exercises alongside your regular course rather than assuming every course supports Max.
Access and pricing: Max is a paid subscription distinct from Duolingo's free learning tier. Features, courses, regions, and prices vary by account and platform.
According to Duolingo's launch announcement, Max sits above Super Duolingo and includes all Super benefits: unlimited energy, no ads and personalised review through the Practice Hub. Its AI features are Video Call, conversations with a character named Lily who remembers past calls, and Roleplay, practice conversations in scenarios like ordering coffee, ending with AI feedback.
Learners who already study regularly and want speaking practice. The article says human curriculum experts write the scenarios and review AI-generated content.
Course support is limited. At launch, English speakers learning Spanish, French, German, Italian or Portuguese got both features, while those learning Japanese, Korean or Chinese got only Video Call. It listed iOS and Android and availability in 188 countries. That article is a launch post and may be out of date, and it gave no price, so check the current Duolingo app for languages, regions and cost before subscribing.

AI conversation practice
Personalised language learning
Roleplay exercises
Max is a paid subscription distinct from Duolingo's free learning tier. Features, courses, regions, and prices vary by account and platform.
Plan information can change. Prices and conditions are set by the provider. Information checked 2026-10-06.
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Use guided language practice and review exercises alongside your regular course rather than assuming every course supports Max.
Max is a paid subscription distinct from Duolingo's free learning tier. Features, courses, regions, and prices vary by account and platform.
Official-source information was reviewed on 2026-10-06. Plans and limits can change; check the linked provider source before subscribing.
Per Duolingo's announcement, Max is a subscription tier above Super Duolingo. It adds AI features such as Video Call with a character named Lily and Roleplay conversations, on top of Super benefits.
The announcement we read gave no price. Pricing varies by account, region and platform, so check the subscription screen in the Duolingo app.
At launch, English speakers learning Spanish, French, German, Italian or Portuguese got Video Call and Roleplay, and those learning Japanese, Korean or Chinese got only Video Call. This may have changed, so check the app.
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