Cover image

Seeing Charts Like a Quant: When RL Teaches Vision Models to Actually Reason

Charts look harmless. A bar chart sits in a dashboard, a line chart appears in a quarterly report, a scatter plot claims there is a relationship, and everyone pretends the machine only needs to “read the image.” This is the polite fiction behind a large share of enterprise AI demos. In practice, chart understanding is not OCR with prettier fonts. A model has to identify the marks, map colors to legends, recover values, decide which numbers matter, perform arithmetic, interpret trends, and then answer the actual question rather than the easier question it secretly substituted. That last step is where many systems go from impressive to quietly expensive. ...

April 6, 2026 · 15 min · Zelina
Cover image

From Pixels to Python: Teaching AI to Fix Its Own Charts

Charts are supposed to make business communication clearer. In practice, they also create a quiet operational tax: screenshots trapped in PDFs, plots copied from old decks, dashboards whose original code has vanished, and reports where one small visual change requires an analyst to rebuild the chart by hand. That is the mundane setting behind a technically interesting paper. MM-ReCoder asks whether a multimodal model can look at a chart image, write Python code to reproduce it, execute the code, inspect the rendered result, and then fix its own mistakes.1 ...

April 5, 2026 · 16 min · Zelina
Cover image

When Language Models Ask for Help: The Curious Case of Uncertain AI

Escalation is the least glamorous part of automation. It is also where many systems either become useful or become expensive theatre. In a normal business workflow, we understand escalation almost instinctively. A junior analyst handles routine invoices. An exception goes to a senior reviewer. A suspicious transaction goes to compliance. A warehouse robot follows a route until the floor plan stops behaving like yesterday’s floor plan. Nobody sensible asks the senior reviewer to approve every invoice. Nobody sensible lets the junior analyst improvise when the case is clearly outside their experience. ...

April 3, 2026 · 14 min · Zelina
Cover image

Approval Isn’t Free: When AI Safety Trades Capability for Control

Approval sounds cheap. In business systems, it is the familiar answer to almost every automation anxiety. Let the model propose, let an overseer approve, let the workflow continue. A trading agent recommends a position; a risk layer approves it. A customer-support agent drafts a refund decision; a policy checker approves it. A recommendation system optimizes engagement; a governance model approves the output. There. Safety added. Please admire the compliance architecture. ...

April 1, 2026 · 14 min · Zelina
Cover image

Skill Issue? Or Skill Strategy — When Agents Start Remembering What Matters

Memory is easy to sell and hard to govern. Every enterprise AI demo eventually reaches the same theatrical moment: the agent remembers something. A prior customer preference. A workflow exception. A formatting habit. A failed action that should not be repeated. Everyone nods. Someone says “continuous learning.” A roadmap slide appears. The slide is almost certainly too optimistic. ...

March 31, 2026 · 17 min · Zelina
Cover image

Synthetic Sense or Synthetic Nonsense? When AI Trains on Itself

Charts. Tables. Diagrams. Scanned forms. Product screenshots. Floor plans. Receipts with half-faded numbers and three suspiciously similar line items. This is where enterprise multimodal AI is supposed to become useful. Not in the demo where the model politely describes a golden retriever on a lawn, but in the operationally annoying question: which number, label, relation, or region in this visual object actually matters for the task? ...

March 31, 2026 · 15 min · Zelina
Cover image

From Blueprints to Prompts: Automating Building–Grid Intelligence with LLM Agents

Building simulation is not glamorous work. It is a room full of configuration files, simulator interfaces, reward functions, time-series outputs, and small mistakes that quietly invalidate a week of analysis. The industry likes to talk about intelligent buildings. The less marketable truth is that before a building can be intelligent, someone has to wire the experiment together correctly. ...

March 30, 2026 · 16 min · Zelina
Cover image

When Reasoning Pays (and When It Cheats): Fixing RL Signals in LLM Training

Scorecards are useful until people learn how the scorecard works. That is not a cynical observation. It is basic management. Sales teams optimize for commission rules. Customer-service teams optimize for handle-time dashboards. Students optimize for exams. And language models, with their charming lack of shame, optimize whatever reward function we put in front of them. ...

March 30, 2026 · 17 min · Zelina
Cover image

Don’t Train Harder—Train Smarter: The Hidden Economics of RL for LLMs

The GPU bill is not the strategy The easiest way to make reinforcement learning for reasoning models sound impressive is to say: sample more responses, train longer, scale harder. It is also the easiest way to make the finance team develop a facial twitch. Modern reasoning-focused LLMs increasingly rely on reinforcement learning with verifiable rewards: generate multiple candidate answers, score them with a rule-based signal, and update the model toward better reasoning behavior. In mathematics and coding tasks, this has become one of the most important post-training recipes. But it has a small accounting problem, in the same way a leaking ship has a small moisture problem. ...

March 29, 2026 · 18 min · Zelina
Cover image

Drive My Way: When Autonomous Cars Start Having Personalities

Car settings are usually pretending to know you. Sport mode assumes you are impatient. Eco mode assumes you have discovered moral superiority through fuel efficiency. Comfort mode assumes everyone in the vehicle prefers to be gently transported like a bowl of soup. These modes are not useless. They are just blunt. They adjust a handful of parameters and call the result personalization, which is a bit like calling a restaurant “personalized” because it offers small, medium, and large. ...

March 28, 2026 · 20 min · Zelina