---
title: "Amir Pournasserian (@pournasserian) | Hashnode"
description: "Amir Pournasserian (@pournasserian) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@pournasserian"
---

@pournasserian

# Amir Pournasserian

@pournasserian · Toronto, Canada · Joined November 2026

### [Validating a vector database built for RAG: four layers of checks, with the code to run them](https://pournasserian.hashnode.dev/validating-a-vector-database-built-for-rag-four-layers-of-checks-with-the-code-to-run-them?utm_source=hashnode&utm_medium=feed)

Runnable checks for chunks, embeddings, retrieval and answers, tested against a 536-vector index. https://pournasserian.com/writing/validating-a-vector-database-for-rag

1 min read · [pournasserian.hashnode.dev](https://pournasserian.hashnode.dev/validating-a-vector-database-built-for-rag-four-layers-of-checks-with-the-code-to-run-them?utm_source=hashnode&utm_medium=feed)

[Nov 5](https://hashnode.com/posts/validating-a-vector-database-built-for-rag-four-layers-of-checks-with-the-code-to-run-them/6aed139a078e38e9f137f28c)

### [Decision models against small LLMs: Jev, Kev, Laya and Mammoth-1 on 6,662 decisions](https://pournasserian.hashnode.dev/decision-models-against-small-llms-jev-kev-laya-and-mammoth-1-on-6-662-decisions?utm_source=hashnode&utm_medium=feed)

Four decision models and five small LLMs, tested on six public datasets with the harness and raw calls published. https://pournasserian.com/writing/decision-models-vs-small-llms-2026

1 min read · [pournasserian.hashnode.dev](https://pournasserian.hashnode.dev/decision-models-against-small-llms-jev-kev-laya-and-mammoth-1-on-6-662-decisions?utm_source=hashnode&utm_medium=feed)

[1](https://hashnode.com/posts/decision-models-against-small-llms-jev-kev-laya-and-mammoth-1-on-6-662-decisions/6aed130b48adf958e957b027) [Nov 5](https://hashnode.com/posts/decision-models-against-small-llms-jev-kev-laya-and-mammoth-1-on-6-662-decisions/6aed130b48adf958e957b027)