Blog

Stories from the gateway

Models

A/B Testing Two Models Without Fooling Yourself

Comparing two models on live traffic sounds simple and usually is not. Sample sizes, paired designs, and the metrics that actually settle the question.

· 9 min read
Models

Active vs Total Parameters: The Number Spec Sheets Hide

A 2.8T model and a 27B model can be two-to-one apart on the figure that governs thinking. How to read parameter counts across the 2026 field.

· 9 min read
AI Agents

Agent Audit Logging: What to Record and What to Redact

· 9 min read
AI Agents

Agent Caching Strategies: Prompt, Tool and Result Layers

· 9 min read
AI Agents

Agent Checkpointing: Saving Work a Long Session Can Lose

· 8 min read
AI Agents

Agent Concurrency Control: Pools, Locks and Fair Slots

· 9 min read
Cost & Pricing

Agent Cost Attribution: Tracing Spend Back to a Cause

· 9 min read
AI Agents

Agent Failure Modes: A Taxonomy Worth Memorising

· 9 min read
AI Agents

Agent Fan-Out Limits: How Wide Is Too Wide

· 9 min read
AI Agents

Agent File System Access: Designing the Blast Radius

· 8 min read
AI Agents

Agent Handoff Patterns: Passing Work Without Losing It

· 9 min read
AI Agents

Agent Loop Anatomy: The Twenty Lines That Run Everything

· 8 min read
AI Agents

Agent Network Access Control: Egress Is the Real Risk

· 9 min read
AI Agents

Agent Observability Metrics That Actually Predict Failure

· 9 min read

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