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More from Mazdak

OpenAI Launches GPT‑4.1: What You Need to Know About the New Family of AI Models

OpenAI has officially released the GPT‑4.1 family — and it’s more than just a minor upgrade.

6 days ago 9 votes
How Public Company Executives Borrow Against Their Shares to Defer Taxes

For ultra-wealthy individuals and executives of public companies, borrowing against their shares is a powerful financial strategy.

a month ago 20 votes
Claude vs. ChatGPT: A Comprehensive Comparison

In today’s rapidly evolving AI landscape, two names stand out in the realm of conversational assistants—Anthropic’s Claude and OpenAI’s ChatGPT. Although both are built on large language models, they diverge sharply in design philosophy, technical implementation, safety protocols, and real‑world performance. This article examines their fundamental differences, reviews benchmark results, and outlines use case recommendations, providing a forward‑looking analysis for decision‑makers and developers alike.

a month ago 24 votes
OpenAI Unveils GPT-4.5: Here’s Everything You Need to Know

The AI race just got more interesting.

a month ago 19 votes

More in finance

A stupid decision to sell my rental property

I sold my rental property last year, after owning it over 20 years. It’s a lovely property, worth around £1m, right in the heart of London – near the middle of the map below. I used to live in it, I travel past it regularly, I know its neighbourhood well. The Modern Flat has genuinely… Continue reading A stupid decision to sell my rental property →

10 hours ago 3 votes
TSA: Airline Travel up 1% YoY

This is something to watch with less international travel. Here are the daily travel numbers from the TSA. This data is as of April 16, 2025. Click on graph for larger image. Air travel is up about 1.3% YoY.

5 hours ago 1 votes
Vanguard as a Demand-Side Mystery

We study the rise of Vanguard, the index fund management company, as a case study of how customer demand is not always about pain.

2 hours ago 1 votes
Real Estate Newsletter Articles this Week: Housing Starts at 1.324 million Annual Rate in March

At the Calculated Risk Real Estate Newsletter this week: Click on graph for larger image. Housing and Demographics Housing Starts Decreased to 1.324 million Annual Rate in March Watch Inventory and Why Measures of Existing Home Inventory appear Different 3rd Look at Local Housing Markets in March

yesterday 2 votes
Longreads + Open Thread

Moon, Welch, Robinhood, Heterodoxy, Bots, Liquidity, Trade, Google

yesterday 3 votes