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  • pgvector HNSW Filtering: My RAG Asked for 10 Rows and Got 0

    The support ticket was one line long: "Your assistant says our docs don't mention refunds. We have an entire page called Refunds." I checked. The page was there. It was chunked, embedded, and sitting in Postgres with the right tenant_id.

    Dev.to AI7 min read

  • Grok 4.7 pricing: same $2/$6 per token, double the cost per task

    Grok 4.7 costs exactly what Grok 4.6 did per token: $2 per million input tokens and $6 per million output. Per task, it costs about double. Artificial Analysis measured xAI's new model writing roughly 2.5 times as many tokens as its predecessor, so its cost per task went from $1.86 to $3.74.

    Dev.to AI9 min read

  • What Is Jev? I Tested TypeSafe's Decision Model on My Comments and Email

    In September 2026 a company called TypeSafe released Jev, and it isn't a chatbot. It never writes a sentence. You give it some text and a question with fixed answer options, and it returns one of your options plus how sure it is: "bot, 97%." Nothing to parse, nothing to read.

    Dev.to AI7 min read

  • Using LLMs for Crypto Market Analysis in 2026

    Integrating Large Language Models (LLMs) into cryptocurrency market analysis has evolved from experimental curiosity to a core component of institutional-grade trading strategies in 2026.

    Dev.to AI2 min read

  • When AI Generates, Who Is Actually Creating?

    A technical response to the debate over human art, generative models, and the “spark of humanity” Pope Leo XIV recently argued that, in the age of AI, we need to distinguish human art from what machines produce.

    Dev.to AI7 min read

  • Agentes LLM: un arnés de email reproducible

    Un agente LLM puede completar un registro, pedir un código de verificación y afirmar que terminó correctamente. Eso no demuestra que el flujo haya funcionado. Quizá leyó un mensaje viejo, confundió una respuesta del sistema o inventó el resultado después de que una herramienta fallara.

    Dev.to AI6 min read

  • MyanmarChemCalc-Bench: Do LLMs Do Chemistry Better in English Than in Burmese?

    Benchmark: https://www.kaggle.com/benchmarks/winkoaung/myanmar-chem-calc-bench What tasks did I run? MyanmarChemCalc-Bench — 30 tasks built from 15 chemistry calculation questions drawn from Myanmar's Grades 9–12 chemistry textbook worked examples (ground-truth answers verified against the…

    Dev.to AI3 min read

  • André Dias Moreira Prol: Securely Connect AI to Your Company Docs with RAG

    Imagine asking your AI assistant about last quarter's compliance report and getting a precise answer, sourced directly from your internal documents, without that data ever leaking to a public model. This is no longer science fiction—it's RAG (Retrieval-Augmented Generation) in production.

    Dev.to AI3 min read

  • André Dias Moreira Prol: RAG conectando IA aos documentos da empresa

    Imagine um assistente de IA capaz de responder perguntas sobre contratos, políticas internas e manuais da sua empresa — com a precisão de quem leu cada documento e a discrição de quem nunca vaza informação confidencial. Esse cenário deixou de ser ficção.

    Dev.to AI3 min read

  • Shrink a high-volume agent step after the strong model

    Narrow steps that run on every request, on a model stronger than that step needs, are candidates for a cheaper model. Measured spend then shows where the savings lie. Prove the step on the strongest model, move that one job to a smaller or fine-tuned model, and keep the product metric where it was.

    Dev.to AI7 min read

  • Your AI Feature Is Now Part of Your Attack Surface

    Why adding an LLM changes the security model of an ordinary application Adding an LLM to an existing application can look deceptively simple. A user sends a request. The application sends it to a model. The model returns an answer.

    Dev.to AI11 min read

  • How I calibrated an LLM judge to grade like me, 25 cheaper

    Businesses that sell technical products answer the same kind of question every day. "What's the accuracy on this range?" "Can it measure through a coating, and how thick?" "Does it come with a calibration certificate?" The answers sit in product datasheets and manuals.

    Dev.to AI7 min read

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