---
author: "Umesh Malik"
canonical: "https://umesh-malik.com/blog/tag/ai-research"
description: "Explore articles tagged with AI Research by Umesh Malik — AI Engineer, LLM & GenAI Developer. Learn AI Research best practices, practical tips, and in-depth guides."
title: "Umesh Malik's Blog - AI Research Articles | AI Research Tutorials"
tokens: 302
generator: "scripts/generate-page-markdown.mjs"
---

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# AI Research

2 articles

 [![Dashboard-style cover comparing a text handoff between two LLMs against direct cache-to-cache communication, with a 2.5x latency result](https://umesh-malik.com/blog/multi-agent-llm-latency-text-handoffs-cover.png)

LLM Engineering • Sep 20, 2026

### How to Fix Multi-Agent LLM Latency: Text Handoffs Cost 2.5x

Multi-agent LLM latency isn't random: an ICLR 2026 paper measured the cause — text handoffs cost 2.5x more time and 3-5% less accuracy than skipping text.

11 min read

Read more →](https://umesh-malik.com/blog/multi-agent-llm-latency-text-handoffs)

 [![Timeline comparing the knowledge-cutoff date vendors claim for Claude Opus 5 against the earlier cutoff its answers actually reveal](https://umesh-malik.com/blog/testing-llm-knowledge-cutoffs-opus-5-cover.png)

LLM Engineering • Aug 11, 2026

### How to Test an LLM's Knowledge Cutoff: Opus 5's May Claim Falls Short

Here's how to test an LLM's knowledge cutoff with three reproducible probes — the method showing Opus 5 claims May 2026 but answers like January 2026.

7 min read

Read more →](https://umesh-malik.com/blog/testing-llm-knowledge-cutoffs-opus-5)