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Stories from the gateway

AI Agents

Tracing Multi-Step Agents: Building a Trace Tree That Holds

A flat log of model calls cannot explain a twenty-step run. How to shape spans, propagate context through subagents and async tools, and replay a run from its trace.

· 9 min read
Fundamentals

Transformer Architecture Explained for Working Developers

What a transformer block actually contains, why the design won, and which parts of it explain the behaviour you observe when using a model.

· 9 min read
Cost & Pricing

Trial Abuse and Fair Use on Flat-Rate AI Plans

· 9 min read
Fundamentals

Unicode and Tokenization: Where Text Handling Goes Wrong

· 9 min read
Cost & Pricing

Usage Caps and Overages: Limits That Do Not Break Work

· 12 min read
Guides

Using an LLM for Database Schema Design, Carefully

· 9 min read
Guides

Using an LLM to Generate and Edit Config Files

· 9 min read
Guides

Using LangChain With Any OpenAI-Compatible Endpoint

· 9 min read
Cost & Pricing

Vendor Lock-In Costs: Measure It Instead of Fearing It

· 9 min read
Models

Vendor-Claimed vs Independent Benchmarks: Reading Both

· 9 min read
Guides

Vercel AI SDK: Wiring Up a Custom OpenAI-Compatible Provider

· 9 min read
AI Agents

Verifier Agents: Gating Completion on a Check That Passes

· 9 min read
Models

Vision-Language Models: What to Test Before You Commit

· 9 min read
Fundamentals

Vocabulary Size Trade-offs in Language Model Tokenizers

· 9 min read

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