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Top LLM Cost Optimization Techniques Every Engineer Should Know
Building an AI feature has never been easier. A working prototype takes an afternoon: pick a frontier model, write a prompt, wire up a few tools, ship it. Then the invoice arrives. The prototype that cost a few dollars a day in testing now serves thousands of users. Every request carries a 6,000-token system prompt.…
Artificial Intelligence
Chatbot ou agent IA : où se situe vraiment votre système sur l’échelle d’autonomie
Chatbot ou agent IA Si vous avez assisté cette année à une démo d’un éditeur IA dans une banque, vous avez sans doute vu la slide : « Découvrez votre premier agent IA ». Puis la démo commence. L’« agent » répond à trois questions sur les frais de tenue de compte à partir d’un…
17 mins to read
Artificial Intelligence
Chatbot vs AI Agent: Where Your System Really Sits on the Autonomy Spectrum
Chatbot vs AI Agent If you have sat through an AI vendor demo in a bank this year, you have probably seen the slide. “Meet your first AI agent.” Then the demo starts, and the agent answers three questions about account fees from a product PDF and offers a link to reset a password. It’s…
15 mins to read
Artificial Intelligence
Arrêtez de récupérer, commencez à compiler : le pattern LLM Wiki
Le RAG est un interpréteur, le LLM Wiki est un compilateur Le RAG nous a habitués à une drôle de pratique : chaque question repaie intégralement le prix de la compréhension du corpus. Le pattern LLM Wiki refuse de payer ce prix au moment de la requête. Il déplace la synthèse vers l’ingestion : un…
42 mins to read
Artificial Intelligence
Stop retrieving, start compiling: the LLM Wiki pattern
RAG is an interpreter. The LLM Wiki is a compiler RAG trained us to accept a strange habit: every question pays the full price of understanding the corpus again. The LLM Wiki pattern refuses to pay that price at query time. It moves synthesis to ingestion, where an agent reads each source once, writes what…
34 mins to read
Artificial Intelligence
From factory to intelligence : The evidence plane, and the asset that compounds
Post 4 of 8 in the series on rebuilding a bank’s software development factory for the agentic era. Here is the architecture. Five layers, two cross-cutting planes, and one workstream that decides whether any of the rest of it works. I will start at the bottom, because the bottom is the part that gets cut…
10 mins to read
Artificial Intelligence
From factory to intelligence : What survives contact with a regulator
Post 3 of 8 in the series on rebuilding a bank’s software development factory for the agentic era. Block’s “From Hierarchy to Intelligence” is the most interesting organisational design published this year, and roughly half of it is illegal to implement in a supervised European credit institution. That sounds like a complaint. It is not.…
9 mins to read
Artificial Intelligence
From factory to intelligence : The AI token bill
Post 2 of 8 in the series on rebuilding a bank’s software development factory for the agentic era. The AI token bill : This is the post I would have wanted to read eighteen months ago, so I am putting it second rather than burying it in the middle of a design series. Here is…
11 mins to read
Artificial Intelligence
Software Design and Architecture
L’usine de développement logiciel fonctionne toujours, c’est la contrainte qui a bougé
Article 1 sur 8 de la série consacrée à la refonte de l’usine de développement logiciel d’une banque à l’ère des agents. Il y a 3 ans, j’ai publié ici un long guide sur la conception d’une usine de développement logiciel pour une banque. 9 chantiers, Team Topologies, les capacités Accelerate, les métriques DORA, une…
12 mins to read
Artificial Intelligence
Software Design and Architecture
From factory to intelligence: The Software Factory still works, but the constraint moved
Post 1 of 8 in the series on rebuilding a bank’s software development factory for the agentic era. 3 years ago I wrote a long guide about designing a software development factory for a bank. 9 streams, Team Topologies, the Accelerate capabilities, DORA metrics, an IT-GOV function holding the control catalogue, and a fictional composite…
10 mins to read