Articles for people who
ship the stack
Rewrites on React, Node.js, TypeScript and AI. A translated body is shown when it exists. If it does not, you see the English text and a note that says so.
Tagged: hallucinations
Copy Alone, Fail in Company: Contextual Fragility Among Tokens That Pass an Isolated Copying Test
Screening eight open-weight models for tokens that copy correctly alone but are dropped or altered in context, with checks on embedding geometry, task preservation and tool use.
32 min readFragile Tokens and Silent Substitution: A Geometric Account of Some Hallucinations
Some hallucinations come from damaged or fragile tokens that get swapped for near neighbors before reasoning starts. Examples, per-model rates and a simple test.
7 min readStopping Chatbot Hallucinations: RAG, Vector Search, Chunking and Guardrails
A system design answer for a support chatbot that invents policies: RAG, embeddings and ANN search, chunk sizing, grounding prompts, context limits and monitoring.
7 min readTen ways to cut hallucinations without fine-tuning
Ten system-level fixes that cut LLM hallucinations in an e-commerce agent: better context, retrieval, graphs, tools, validation and evals, with no fine-tuning.
9 min read
About these articles
Request a 24h estimate
Need the same stack in a production operator layer? Send the brief — estimate within 24 hours.