Engineering notes, product thinking, and implementation guides on production RAG, Gemini File Search, retrieval orchestration, citations, evaluation, and source-backed answer systems.
Journal
Browse practical essays on retrieval design, grounded answer systems, agent behavior, product architecture, and evaluation.
Learn how multimodal retrieval-augmented generation extends classic RAG across text, images, layouts, tables, audio, video, and agentic workflows.
WhatsApp usernames ignore capitals, but periods and underscores do not. Here is exactly what has to match when you type someone's handle.
What a WhatsApp username actually does, who can find you with it, who still sees your phone number, and what changes for people you already talk to.
A plain-language guide to WhatsApp usernames: how reserving works, what a username does and doesn't do for your business, and why to grab your name now.
WhatsApp Cloud API payloads can now arrive with no phone number at all. Here is why, how to diagnose it in your own data, and what to change before duplicates pile up.
A practical guide to building a fast, citation-backed RAG pipeline with Groq, from ingestion and retrieval to grounded answers.
A technical deep dive into how LlamaIndex structures ingestion, indexing, retrieval, synthesis, and event-driven RAG workflows.
A practical guide to building Claude retrieval systems with text and multimodal embeddings, reranking, and citations.
A technical guide to how ChatGPT, embeddings, vector search, and RAG pipelines work together to produce grounded AI answers.
A technical guide to Pinecone's vector database, RAG architecture, reranking, Assistant, and Nexus knowledge engine direction.
An in-depth, practical guide to the Gemini API File Search tool — how managed Gemini File Search RAG works end to end, and how multimodal retrieval handles PDFs, docs, images, screenshots, charts, diagrams, metadata, and citations in production.
De leerlo a construirlo
Sube PDFs, páginas e imágenes, y consúltalos con una API compatible con OpenAI que devuelve citas verificables.
¿Construyes sobre tu propio conocimiento? Calypso WhatsApp
