
SpecialistShare and access study materials worldwide — with AI study tools built in
SpecialistShare and access study materials worldwide — with AI study tools built in
Periplus: Generates structured courses and quizzes from technical topics, assisting self-paced learning of AI concepts. ApX Machine Learning records 252,389 monthly visits with -6.5% month-over-month growth and Freemium pricing. Periplus records 27,280 monthly visits with -28.2% growth and Freemium pricing.

Turn any topic or PDF into a full AI-built course
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | apxml.com | periplus.app |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 252.39K (252,389) | 27.28K (27,280) |
| MoM Traffic Delta | -17.42K (-6.5%) | -10.72K (-28.2%) |
| Primary Market & Share | 🇺🇸 United States (14.2%) | 🇺🇸 United States (56%) |
| Direct Visits / mo | 67.58K | 12.79K |
| User Rating | 4.2 | 4.3 |
| Supported Platforms | Website | Website |
VRAM, throughput and GPU cost calculators plus courses for open-weight LLM deployment
Estimates weight and KV cache memory for a chosen model variant, context length, batch size and quantization so you know whether a GPU will actually fit the workload.
Projects time-to-first-token and tokens-per-second throughput per hardware configuration to help you size for real user traffic.
Converts memory and performance estimates into hourly and per-token economics across hardware configurations.
Reference pages for 500+ model variants and documented hardware benchmarks, keeping sizing inputs in one place.

Turn any topic or PDF into a full AI-built course
Type a topic or question and get a chapter-by-chapter course, with any lesson able to branch into a new, linked course.
Any lesson converts into flashcards and quizzes that return on a schedule timed for just before you would forget.
Each chapter becomes a podcast episode hosted by two AI voices, with word-level captions, transcripts and the ability to ask questions out loud.
Documents link to related lessons so you can compare side by side or follow connections across subjects.

SpecialistShare and access study materials worldwide — with AI study tools built in
SpecialistShare and access study materials worldwide — with AI study tools built in
Free / Open-sourceSimplifies running open-weight LLMs locally on your own hardware, though it lacks ApX's explicit VRAM calculators and courses.
Free / Open-sourceSimplifies running open-weight LLMs locally on your own hardware, though it lacks ApX's explicit VRAM calculators and courses.
SpecialistAI flashcards that turn note dumps and PDFs into addictive quiz sessions
SpecialistAI flashcards that turn note dumps and PDFs into addictive quiz sessions

SpecialistOffers comprehensive, structured courses in data science and AI, though it lacks specialized hardware VRAM estimation tools.
Free AI flashcard and study tools for students
Free AI flashcard and study tools for students

SpecialistAI study tools and a personal tutor built from your own course material
SpecialistAI study tools and a personal tutor built from your own course material
SpecialistProvides hands-on browser-based Linux and DevOps labs, ideal for practicing infrastructure deployment skills.
SpecialistProvides hands-on browser-based Linux and DevOps labs, ideal for practicing infrastructure deployment skills.

SpecialistTurn your notes into flashcards that stick
SpecialistTurn your notes into flashcards that stick

SpecialistTurn any lecture, PDF, or video into notes, flashcards, and quizzes in minutes
SpecialistTurn any lecture, PDF, or video into notes, flashcards, and quizzes in minutes
SpecialistAI study tools plus free A-Level and GCSE exam prep
SpecialistAI study tools plus free A-Level and GCSE exam prep
Turn PDFs, slides, notes and videos into Anki flashcards with AI
Turn PDFs, slides, notes and videos into Anki flashcards with AI

Free AI study partner that turns your course material into practice questions, guides and flashcards
Free AI study partner that turns your course material into practice questions, guides and flashcards