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Topology Trouble: Why Even Frontier LLMs Still Get Lost in a Grid

Grid. It looks like the friendliest possible structure. Rows, columns, symbols, rules. No blurry photos, no social nuance, no awkward customer email written at 1:13 a.m. Just a small board and a set of constraints. Naturally, this is where modern reasoning models still manage to embarrass themselves. The paper introducing TopoBench studies a deceptively simple question: can frontier large language models solve topology-heavy grid puzzles where the answer depends on connectivity, loop closure, symmetry, visibility, and state consistency?1 The answer is not “never.” That would be too easy. The answer is more annoying: models often understand enough to start correctly, reason long enough to sound competent, and then lose the structure that makes the solution valid. ...

March 14, 2026 · 19 min · Zelina
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Double Lift-Off: Learning to Reason Without Ever Building the Model

Data is usually incomplete. That is not a philosophical statement; it is Tuesday. A clinical study may record which treatment a patient received but miss one biomarker. A compliance system may know that two entities are connected but not know the contract terms. An environmental monitoring project may have sensor readings for some locations, at some times, under some weather conditions, and then a heroic spreadsheet pretending this is a dataset. ...

February 17, 2026 · 20 min · Zelina
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Potential Energy: What Chain-of-Thought Is Really Doing Inside Your LLM

The familiar ritual: ask it to think longer When an LLM gives a weak answer, the standard reflex is now almost ceremonial: ask it to think step by step. The model writes more. The answer often improves. The benchmark number rises. Everyone feels temporarily reassured. This habit has become so normal that many teams treat chain-of-thought as if it were a small reasoning engine bolted onto the model: more intermediate steps, more deliberate thought, more correctness. A comforting story. Also, like many comforting stories in AI, not quite what the evidence says. ...

February 17, 2026 · 2 min · Zelina
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No More ‘Trust Me, Bro’: Statistical Parsing Meets Verifiable Reasoning

AI systems are very good at saying things. This is both the miracle and the invoice. In enterprise settings, the sentence itself is rarely the final product. A compliance officer does not only want an answer about whether a clause violates policy. A credit analyst does not only want a summary of why a borrower looks risky. A procurement team does not only want a generated explanation of why Vendor A seems eligible. They want to know what the system used, which rule it applied, where the uncertainty sits, and whether the conclusion survives when the evidence changes. ...

February 13, 2026 · 17 min · Zelina
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Thinking About Thinking: When LLMs Start Writing Their Own Report Cards

Report cards are usually written by teachers, managers, examiners, auditors, or other people with the institutional privilege of saying, “Nice effort, but no.” The paper Reinforcing Chain-of-Thought Reasoning with Self-Evolving Rubrics asks a stranger question: what if the model helps write the report card for its own reasoning process?1 That sounds like the kind of governance idea that would make a compliance officer reach for coffee. A model evaluating itself is not automatically trustworthy. Sometimes it is self-reflection. Sometimes it is theatre with JSON brackets. ...

February 13, 2026 · 18 min · Zelina
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SokoBench: When Reasoning Models Lose the Plot

A corridor is not supposed to be hard. There is one player. One box. One goal. No maze. No clever trap. No branching strategy tree with a thousand tempting wrong turns. The player stands at one end, the goal sits at the other, and the box is between them. Push the box along the corridor until it reaches the goal. That is the task. ...

January 31, 2026 · 15 min · Zelina
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Small Models, Big Brains: Falcon-H1R and the Economics of Reasoning

GPU bills are brutally honest. They do not care that a model feels elegant, that a leaderboard table looks heroic, or that a product demo made the sales team briefly spiritual. They care about how many tokens you generate, how long the model occupies expensive hardware, and how often the final answer is actually correct. ...

January 6, 2026 · 19 min · Zelina
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Thinking Without Understanding: When AI Learns to Reason Anyway

A meeting room is not a philosophy seminar, which is fortunate, because most companies would not survive one. A manager asks an AI system to analyze a contract, debug a workflow, compare vendors, or draft a risk memo. The system pauses, breaks the task into steps, checks an assumption, rejects one path, and returns a structured answer. Someone in the room says: “But it does not really understand.” ...

January 6, 2026 · 17 min · Zelina
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Reasoning in Stereo: Why Vision-Language Models Need Multi‑Hop Sanity Checks

The camera saw something. The caption invented the rest. A vision-language model looks at a landmark and produces a caption. The caption is fluent. The architecture sounds plausible. The location sounds authoritative. The historical detail has just enough specificity to discourage questions. And that is the problem. In many business settings, a wrong visual description is not wrong in the theatrical way people imagine when they hear “AI hallucination.” It is not a neon giraffe in a board meeting. It is a product listed under the wrong category. A heritage photo tagged with the wrong site. A compliance image described with an unsupported claim. A training material that quietly teaches a false relationship between a place, an object, and its context. ...

November 26, 2025 · 15 min · Zelina
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When Lateral Beats Linear: How LToT Rethinks the Tree of Thought

Budget is easy to approve when the system still fails anyway. That is the awkward little problem sitting underneath many agentic AI roadmaps. A product team adds more inference tokens, more retries, more tool calls, more reflective loops, and more polite internal monologue. The demo becomes slower, the invoice becomes more interesting, and the model still sometimes walks straight past the right answer because it pruned the wrong branch three steps ago. Progress, apparently. ...

October 21, 2025 · 13 min · Zelina