Scott Logic Blog company blog
Re-implementing LangChain in 100 lines of code
LangChain has become a tremendously popular toolkit for building a wide range of LLM-powered applications, including chat, Q&A and document search. In this blogpost I re-implement some of the novel LangChain functionality as a learning exercise, looking at the low-level prompts it uses to create these higher level…
- Points
- 252
- HN comments
- 83
- Submissions
- 1
- Cited by
- 3 commenters
AI & Machine LearningSoftware Engineering2023
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| May 4, 2023 | Re-implementing LangChain in 100 lines of code by ColinEberhardt | 252 | 83 |
Cited in comments
Linked from 3 Hacker News comments by 3 different people, from May 2023 to Jan 2026.
Most recent:
- afarah1 · Jan 8, 2026
- ColinEberhardt · May 17, 2025
- opyate · May 8, 2023
