Alex Duffy

Alex Duffy is the consulting lead and a staff writer who writes about AI tools and technology in Context Window.

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Jan 23, 2025

We Tried OpenAI’s New Agent—Here’s What We Found

Operator (Could you help me do this task?)

Jan 28, 2025

What Actually Matters (And What Doesn’t) For DeepSeek

Allow us to explain why your 401k is down

Feb 27, 2025

GPT-4.5 Won’t Blow Your Mind. It Might Befriend It Instead.

We’ve been testing the latest model for a few days. Here’s what we found.

Feb 3, 2025

We Tried OpenAI’s New Deep Research—Here’s What We Found

Vibe check: It’s awesome.

Mar 7, 2025

We Gave GPT-4.5 a Myers-Briggs Test. It’s an Extrovert.

OpenAI’s new model rewards getting to know it. Plus: AI companies are increasingly picking lanes for their models to specialize in.