# Sebastian Raschka's Substack

Hacker Approved page: https://hackerapproved.com/p/sebastian-raschka-s-substack/

7 people recommended Sebastian Raschka's Substack in Hacker News comments and none criticized it, November 2025 to October 2026. It was recommended in 3 of 12 months, in 4 threads. It does not meet the Hacker Approved badge rule.

4 of the 7 people who recommend it commented in one thread, “Kimi K3 Architecture Overview and Notes”.

**Verdict:** Recommended for clear, direct writing on recent LLM architectures and how model design affects performance. No caveats were raised.

Summary written by Claude from 6 comments.

## Why people recommend it

- Clear explanations of recent LLM architectures (2 comments in the sample): "Ive gotten a lot of value lately using his writing to understand how parameter size, MOE and PLE variations on local models influence performance" ([source](https://news.ycombinator.com/item?id=49693661)) "Sebastian's blog posts on recent architectures are absolutely great too." ([source](https://news.ycombinator.com/item?id=49420346))
- Direct writing, not LLM-generated filler (2 comments in the sample): "This seems like a rare gem in a space swamped with lazily LLM generated summaries." ([source](https://news.ycombinator.com/item?id=49089845)) "straight to the point yet very easy to grasp it was" ([source](https://news.ycombinator.com/item?id=49090735))
- Respected LLM researcher and author (2 comments in the sample): "Sabastian Raschka is one of the great LLM researchers/authors" ([source](https://news.ycombinator.com/item?id=49088967)) "I've always enjoyed his work!" ([source](https://news.ycombinator.com/item?id=49089424))

## Other newsletters people recommend

- [Ed Zitron newsletter](https://hackerapproved.com/p/ed-zitron-s-newsletter/): 29 recommend, 12 mixed, 37 criticize
- [Simon Willison's blog](https://hackerapproved.com/p/simon-willison-s-blog/): 21 recommend, 0 mixed, 2 criticize
- [acoup.blog](https://hackerapproved.com/p/acoup-blog/): 18 recommend, 0 mixed, 0 criticize
- [gwern.net](https://hackerapproved.com/p/gwern-net/): 18 recommend, 1 mixed, 3 criticize

## The badge

A product earns the Hacker Approved badge when at least 10 people recommend it, recommenders outnumber critics at least 2 to 1 (mixed feelings count toward neither side), it was recommended in at least 4 of the 12 months and in at least 5 different threads, and no single thread supplies more than half of the people who recommend it. Health and money products are never badged.

## Cite as

Hacker Approved, "Sebastian Raschka's Substack", https://hackerapproved.com/p/sebastian-raschka-s-substack/ (7 recommend, 0 mixed, 0 criticize; Hacker News comments, November 2025 to October 2026).

Counts updated 2 Nov 2026, with data through October 31, 2026.