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CS336: Language Modeling from Scratch

Hacker Approved

Ranked 5 of 17 online courses by recommenders

People recommend this Stanford course for in-depth, up-to-date coverage of how LLMs are built and scaled, with rewarding hands-on assignments.

People recommend this Stanford course for in-depth, up-to-date coverage of how LLMs are built and scaled, with rewarding hands-on assignments.

13 people gave an opinion

recommend it
12
criticize it
1
approval share
92%
Each figure is one person. RecommendsCriticizes

Recommended in 5 of 13 months

  1. November 2025: recommended
  2. December 2025: not recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: not recommended
  6. April 2026: not recommended
  7. May 2026: recommended
  8. June 2026: recommended
  9. July 2026: not recommended
  10. August 2026: recommended
  11. September 2026: not recommended
  12. October 2026: recommended
  13. November 2026: not recommended (month in progress)

Why it carries the badge

  • 12 people recommend itNeeds 10 or more, met.
  • 12 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 5 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • In-depth theory and scaling coverage

    “It covers all this curriculum in a lot more depth, introduces you into a lot of theoretical aspects”

    Comment from 5 May 2026 in “Train Your Own LLM from Scratch”

    “I think this is the best structured class out there that teaches how to scale LLMs”

    Comment from 24 Aug 2026 in “I were 17, I'd learn how to build LLMs from scratch”

    “they cover DPO/GRPO and relevant parts needed to train LLMs”

    Comment from 26 Nov 2025 in “CS234: Reinforcement Learning Winter 2025”
  • Up-to-date 2026 version

    “it is great quality and the 2026 version is really up to date with architecture decisions”

    Comment from 2 Jun 2026 in “CS336: Language Modeling from Scratch”

    “the 2026 version there is essential”

    Comment from 1 Jun 2026 in “CS336: Language Modeling from Scratch”

Other online courses people recommend

The four most recommended other online courses, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

CS336: Language Modeling from Scratch compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Math Academy35197%129 mo6 ownersApproved
Nand2Tetris31391%10—Approved
Neural Networks: Zero to Hero by Andrej Karpathy29294%9—Approved
CS193p SwiftUI course by Paul Hegarty13193%211.9 yrs5 owners—
CS336: Language Modeling from ScratchThis page12192%5—Approved
See all 17 online courses, ranked

What people said

12 of the 14 comments that mention it, newest first. Each links to the original comment.

“Computational bottlenecks become much more intuitive when you've looked at the overall process.”

RecommendsComment from 24 Aug 2026 in “I were 17, I'd learn how to build LLMs from scratch”

“It's a disservice to any young hacker to not learn it.”

RecommendsComment from 24 Aug 2026 in “I were 17, I'd learn how to build LLMs from scratch”

“I think this is the best structured class out there that teaches how to scale LLMs”

RecommendsComment from 24 Aug 2026 in “I were 17, I'd learn how to build LLMs from scratch”

“I use this primarily to exercise my brain.”

RecommendsComment from 21 Aug 2026 in “Coding Agents killed my identity. How do you feel?”

“it is great quality and the 2026 version is really up to date with architecture decisions”

RecommendsComment from 2 Jun 2026 in “CS336: Language Modeling from Scratch”

“The one issue I had with the CS336 course was the delivery of the RL components”

CriticizesComment from 1 Jun 2026 in “CS336: Language Modeling from Scratch”

“Oh this is brilliant, I've spent the last month doing something just like this.”

RecommendsComment from 1 Jun 2026 in “CS336: Language Modeling from Scratch”

“You can really feel a sense of achievement after completing the assignments.”

MixedComment from 1 Jun 2026 in “CS336: Language Modeling from Scratch”

“the 2026 version there is essential”

RecommendsComment from 1 Jun 2026 in “CS336: Language Modeling from Scratch”

“It is challenging but rewarding.”

MixedComment from 1 Jun 2026 in “CS336: Language Modeling from Scratch”

“It covers all this curriculum in a lot more depth, introduces you into a lot of theoretical aspects”

RecommendsComment from 5 May 2026 in “Train Your Own LLM from Scratch”

“they cover DPO/GRPO and relevant parts needed to train LLMs”

RecommendsComment from 26 Nov 2025 in “CS234: Reinforcement Learning Winter 2025”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.