---
author: "Umesh Malik"
canonical: "https://umesh-malik.com/blog/tag/claude-api"
description: "Explore articles tagged with Claude API by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn Claude API best practices, practical tips, and in-depth guides."
title: "Umesh Malik's Blog - Claude API Articles | Claude API Tutorials"
tokens: 303
generator: "scripts/generate-page-markdown.mjs"
---

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# Claude API

2 articles

 [![How server-side compaction replaces a long agent transcript with a single summary block once input tokens cross the trigger, and what is kept versus permanently dropped](https://umesh-malik.com/blog/agent-context-compaction-what-survives-cover.png)

AI Engineering • Aug 12, 2026

### Agent context compaction: keep what the 150K cutoff drops

Agent context compaction drops every block before the summary at 150K tokens. What survives, what instructions silently replaces, and the usage field that lies.

9 min read

Read more →](https://umesh-malik.com/blog/agent-context-compaction-what-survives)

 [![Cover for the Claude Fable 5 deep-dive guide: capabilities, the $10/$50 cost math, API behavior, and when to use Anthropic's most capable model](https://umesh-malik.com/blog/claude-fable-5-guide-cover.png)

LLM Engineering • Jul 2, 2026

### Claude Fable 5: Capabilities, Cost & When to Use It (2026)

Claude Fable 5 is Anthropic's most capable model yet. The honest deep-dive: capabilities, the $10/$50 cost math, API behavior, and when to use it.

12 min read

Read more →](https://umesh-malik.com/blog/claude-fable-5-guide)