AI Echoes | Benito Martin | Substack

Building a Code Review Agent with vLLM: Scaling from 6 GB to 24 GB

GPU Memory, Prefix Caching, and Concurrency Benchmarks with vLLM

Apr 17 • Benito Martin

Benchmarking LLM Exact and Semantic Caching with Redis

Implementing Hash-Based and Vector-Based Caching to Speed Up Local LLM Inference

Mar 20 • Benito Martin

Teaching a 1.2B Model to Be a Grumpy Italian Chef: SFT + DPO Fine-Tuning with Unsloth

Turn a SLM into a dramatic, opinionated Italian chef with Supervised Fine-Tuning and Direct Preference Optimization.

Feb 26 • Benito Martin

Building Production-Ready Desktop LLM Apps: Tauri, FastAPI, and PyInstaller

A practical guide to bundling local AI applications that users can actually install

Feb 12 • Benito Martin

Exploring AWS Bedrock AgentCore and Strands Agents

Testing AWS's New Agent Infrastructure: Runtime, Gateway, Memory, and Auth.

Jan 29 • Benito Martin

Free Courses

Production RAG Course

Develop a production RAG system for hybrid search across Substack newsletter content with Prefect, Supabase, Qdrant and GCP

Free Resources

A collection of projects you can also build

Other Publishing Platforms

Where I wrote before launching my Substack newsletter

Technical articles I’ve written on the Zilliz vector database platform

My articles covering CI/CD workflows with CircleCI

Contact

My professional profile

Recent posts

What’s Coming Next in 2026: New Schedule, New Topics

New bi-weekly schedule, same commitment to production-ready content with working code

Jan 15 • Benito Martin

AI Echoes Wrap-Up 2025

A Year of Building, Learning, and Sharing Production ML/AI Systems

Dec 11, 2025 • Benito Martin

Template Once, Update Everywhere: Build Evolving Python Templates with Copier

How Copier and uv let you maintain consistent tooling across dozens of Python projects without manual updates

Dec 4, 2025 • Benito Martin

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AI Echoes

AI Echoes

Learn how to build reliable production applications, get practical tool insights, and enjoy self-paced tutorials and courses.

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Courses

Building a Substack Articles Search Engine: Lesson 4

Cloud Run Deployment and Gradio UI

Oct 28, 2025 • Benito Martin

Building a Substack Articles Search Engine: Lesson 3

FastAPI backend, streaming and multi-provider LLM support

Oct 23, 2025 • Benito Martin

Building a Substack Articles Search Engine: Lesson 2

Vector embeddings and hybrid search infrastructure

Oct 21, 2025 • Benito Martin

Building a Substack Articles Search Engine: Lesson 1

Setup, configuration and articles ingestion in Supabase Postgres database.

Oct 16, 2025 • Benito Martin

Tools

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Template Once, Update Everywhere: Build Evolving Python Templates with Copier

How Copier and uv let you maintain consistent tooling across dozens of Python projects without manual updates

Dec 4, 2025 • Benito Martin

Happier Developers, Faster Teams: Why Prek Beats Pre-commit

A Rust-powered alternative to pre-commit that scale from small repos to massive projects.

Oct 9, 2025 • Benito Martin

Easy, Flexible (and Free) Multi-Model Access: Meet OpenRouter

Simplify your AI projects with a single access point to hundreds of powerful LLMs.

Sep 11, 2025 • Benito Martin

Series

Mastering Pydantic - Part 3: Types, Unions, and Serialization

Serialization, Type Precision, and Union Strategies for Data Handling.

Oct 2, 2025 • Benito Martin

Mastering Pydantic - Part 2: Validation Techniques

Data Validation with Field, Model, and Function Validators.

Sep 25, 2025 • Benito Martin

Mastering Pydantic - Part 1: Foundation and Core Concepts

Building Reliable Data Models for Data Science, ML and AI Applications

Sep 18, 2025 • Benito Martin

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