LLMs From Scratch vs Praktika

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-10-09
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At a glance

DimensionLLMs From ScratchPraktika
Target AudienceDeep learning engineers wanting to build LLMs from scratchIntermediate language learners focusing on speaking fluency
Core ApproachStep-by-step coding of GPT-like model in PyTorchAI-powered conversational practice with instant feedback
FormatBook with code (print/ebook)Mobile app with AI tutors
Key FeatureImplement multi-head self-attention and transformer blocksReal-time pronunciation and grammar correction
Best ForUnderstanding LLM internals and trainingPracticing speaking without human partner

Praktika and LLMs From Scratch are incomparable products serving different needs. For personalized language speaking practice with AI tutors and real-time correction, choose Praktika. For a deep dive into building a GPT-like LLM from scratch with PyTorch code, choose the book by Sebastian Raschka. Your choice depends entirely on whether you want to learn a language or build an LLM.

LLMs From Scratch
LLMs From Scratch

A code-first Manning book that walks you through building a GPT-2 class LLM in PyTorch, line by line, without using existing LLM libraries

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Praktika
Praktika

Praktika pairs you with named AI tutors for live voice conversation practice and corrections that fold into the dialogue.

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Pricing
Paid
Freemium
Plans
$0.99 with membership
$49.24 (list $59.99, 18% savings)
$49.99
$0/mo
~$8/mo
Popularity
13 views
7.5k views
Skill Level
Intermediate
Beginner-friendly
API Available
Platforms
—
Mobile
Categories
🔬 Research & Education
🗣️ Language Learning
Features
Plan and code all the parts of an LLM in PyTorch
Build a base model comparable to GPT-2 without existing LLM libraries
Prepare a dataset suitable for LLM training
Work with text data and tokenization (chapter 2)
Code attention mechanisms from scratch (chapter 3)
Implement a GPT model from scratch to generate text (chapter 4)
Construct a complete training pipeline
Pretrain on unlabeled data (chapter 5)
Fine-tune the LLM for text classification (chapter 6)
Fine-tune with your own custom data
Use human feedback so the LLM follows instructions (chapter 7)
Build a chatbot that follows conversational instructions
Load pretrained weights into an LLM
Run the finished LLM on any modern laptop, with optional GPU use
Appendix A: Introduction to PyTorch; Appendix B: reference material
AI tutors Tama, Raven, Skye, and Noah for live conversation practice
Voice conversation practice for spoken fluency
Text conversation practice for written dialogue
Real-time corrections on pronunciation, grammar, and word choice
Tutor restates your sentence correctly and adds new vocabulary
Cross-session context memory so tutors remember your mistakes
Personal study plan adapting to goals, interests, and pace
Grammar, vocabulary, listening, and reading exercises
Soft, balanced, and strict feedback intensity modes
Native-language interface for learners starting from zero
Smart prompts and natural phrases to keep dialogue flowing
Free conversation on any topic in your own words
Learn in your native language from scratch
iOS and Android mobile apps

What real users say: LLMs From Scratch vs Praktika

Not marketing copy and not our opinion — a structured sweep of public discussion (reviews, forums, communities and video comments), showing what people praise and what they complain about for each tool.

LLMs From Scratch

49 mentions across 3 sources · 73% positive (averaged across 3 sources)

Hacker News, GitHub, Lemmy

What users praise

  • • Unmatched depth in explaining transformer internals with code and illustrations
  • • Hands-on approach: build and train a GPT-like model from scratch on your laptop
  • • Cryptography: clear, step-by-step construction of multi-head self-attention and transformer blocks
  • • Strong focus on 'why' behind architecture, not just 'how' to use APIs

What frustrates them

  • • High skill barrier: requires intermediate Python and deep learning knowledge
  • • Time-consuming to work through fully—not a quick read
  • • Some chapter code lacks reproducibility, breaking the 'follow-along' experience
  • • Assumes PyTorch comfort; non-PyTorch users face extra friction

Researched Aug 14, 2026

Praktika

64 mentions across 5 sources · 36% positive — critical (weighted across 5 sources)

Hacker News, YouTube, Product Hunt, App Store, Lemmy

What users praise

  • • Gets shy learners speaking out loud without the pressure of a human partner
  • • Unlimited low-stakes conversation reps at roughly $8/month beats private-tutor pricing
  • • Tutors remember prior mistakes, so later sessions feel warmer than the first
  • • Cross-session memory and adaptive study plan personalise practice over time

What frustrates them

  • • Mispronounces French 'est' and reads Japanese kanji and kana incorrectly
  • • Can't hold a dialect line — European Portuguese kept reverting to Brazilian
  • • Beginner course described as unintuitive and already too advanced for zero-level
  • • Push-to-talk listener mishears, and the app ships with no onboarding instructions

Researched Oct 7, 2026

Who should pick which

  • Intermediate language learner wanting to improve speaking fluency
    Pick: Praktika

    Praktika provides AI tutors for real-time conversation practice with pronunciation and grammar correction, ideal for building spoken fluency.

  • Deep learning engineer wanting to understand transformer internals
    Pick: LLMs From Scratch

    LLMs From Scratch offers a hands-on, code-centric guide to building a GPT-like model, covering every step from tokenization to training.

  • Busy professional with limited time for language practice
    Pick: Praktika

    Praktika's on-demand AI tutors allow short, flexible speaking sessions anytime, fitting into a packed schedule.

  • Student or researcher wanting to build LLMs from scratch
    Pick: LLMs From Scratch

    The book provides the necessary foundation in PyTorch for building and training custom LLMs, with code examples and explanations.

  • Learner anxious about speaking with human tutors
    Pick: Praktika

    Praktika's AI tutors provide a low-pressure environment for practicing conversation without fear of judgment.

Frequently Asked Questions

LLMs From Scratch vs Praktika: which should you choose?

Praktika and LLMs From Scratch are incomparable products serving different needs. For personalized language speaking practice with AI tutors and real-time correction, choose Praktika. For a deep dive into building a GPT-like LLM from scratch with PyTorch code, choose the book by Sebastian Raschka. Your choice depends entirely on whether you want to learn a language or build an LLM.

Are these tools comparable?

No. Praktika is a language-learning app focused on speaking practice; LLMs From Scratch is a technical book on building LLMs.

Which one is more expensive?

LLMs From Scratch is a one-time book purchase (~$40-60). Praktika is freemium with a possible subscription for premium features (ongoing cost).

Can I use Praktika to learn how to build an LLM?

No. The latest news doesn't mention any such feature; it's purely a language learning tool.

Can LLMs From Scratch help me learn a new language?

No. The book focuses on building LLMs, not language learning.

Which tool is better for a complete beginner in coding?

Neither is ideal for absolute beginners. LLMs From Scratch requires Python and deep learning basics. Praktika might be suitable for beginners in language learning with its native language interface.

Does Praktika support multiple languages?

Yes, it supports multiple languages with distinct AI tutor personas.

Does LLMs From Scratch require prior knowledge of PyTorch?

It's helpful but not mandatory; the book covers concepts step by step.

Are there any updates to LLMs From Scratch from recent news?

The news shows related projects (NanoEuler, vintage LLM) but no direct update to the book itself.

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Last reviewed: July 3, 2026