Zalt Blog

Is free AI chat actually private? Most AI chat tools send every message to a server. In-browser AI chat with WebLLM never does, the model runs on your own GPU. Here's how to verify it yourself in under a minute.

Length, price, update cadence, who it's for: a direct side-by-side of the top vibe coding handbooks instead of another vague ranked list.

You have outgrown a chatbot the moment you stop wanting answers and start wanting the work finished. If you are the glue moving its output between steps, or you keep re-asking for the same task, the job has changed shape from thinking to doing. That is when you move from a chatbot you consult to an AI employee you delegate to. You keep both. Knowing which to reach for is the skill.

Most "free" AI tools aren't free, you pay with a usage cap, your data, your email, or a credit limit. The one real exception: tools that run the AI model locally in your browser, which cost the operator nothing per use.

When one agent orchestrates a whole AI stack, you stop wiring pieces by hand and start thinking in terms of a single control tower for your system 🧠

Most work on attention focuses on accuracy. “Attention That Listens Efficiently” asks a different question: how do you make attention fast enough to matter in practice?

Curious how JAX actually wires gradients, JIT, and vectorization together? This piece breaks down the transformations engine behind JAX’s behavior.

When Missing Files Break Mental Models digs into what happens when your code layout lies to you. If paths don’t match expectations, how far does the damage go?