Openai on Danilo Falcão da Silva

Codex CLI From a DevOps Lens: Fast, Guardrailed, and Worth Piloting

Tue, 26 May 2026 00:05:54 -0300

I decided to test Codex CLI today because I have liked the quality I get from GPT-5.3-Codex enough to take it seriously in real work. I did not open it looking for a demo. I opened it with the same question I apply to any tool that can touch production-bound code: is this operationally trustworthy, or just impressive for fifteen minutes?

My conclusion is clear: Codex CLI is already good enough to pilot seriously, but it is not my daily driver yet.

Karpathy at Anthropic, the Pope at the Vatican, and the Internet Losing Its Mind

Mon, 25 May 2026 18:05:00 -0300

Two things happened in the same week. Both of them involved Anthropic. One was a major hire. The other was a Vatican press conference. Neither was fake. But the internet managed to smash them together into something that was, and now people are asking me if the Pope works at Anthropic.

Let me untangle this.

What actually happened: the Karpathy hire

On May 19, 2026, Andrej Karpathy posted on X: “I’ve joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D.”

GPT-5.3-Codex: A Late Review (And Why I'm Paying Attention Now)

Sun, 24 May 2026 21:00:00 -0300

This is a late review. GPT-5.3-Codex shipped on February 5, 2026, and here I am almost four months later writing about it. I have no excuse beyond the usual one — too many things to look at, not enough evenings. But having spent the past few weeks reading benchmarks, watching demos, and following what developers are actually saying about it, I want to be honest: it is a good model. A genuinely good one.

Musk vs. OpenAI Ends on a Technicality — and the Questions Everyone Wanted Answered Are Still Open

Mon, 18 May 2026 19:30:00 -0300

A nine-person jury in the Northern District of California took less than two hours today to unanimously dismiss every claim in Elon Musk’s lawsuit against Sam Altman, Greg Brockman, OpenAI, and Microsoft. Musk had sought up to $134 billion in disgorgement, the removal of Altman and Brockman from OpenAI’s leadership, and the unwinding of OpenAI’s October 2025 conversion into an $852-billion public benefit corporation.

He got none of it. The technicality matters more than the headline.