Codex

Less than two months between GPT-5.4 and GPT-5.5. Even OpenAI president Greg Brockman admitted during Thursday’s press briefing that “there are probably enough model releases that it’s getting hard to distinguish one from another.” He’s right. But GPT-5.5 deserves your attention anyway — not because of what it promises, but because of what it reveals about where this industry is heading at full speed. The Pitch: Less Hand-Holding, More Doing OpenAI’s headline claim is deceptively simple: GPT-5.5 can do more with less guidance. Hand it a messy, multi-part problem and it figures out the plan on its own — choosing tools, checking its work, iterating toward a solution. ...

If you write Python in 2026, you almost certainly use something Astral built. Their package manager uv hit 126 million downloads last month. Their linter Ruff clocked 179 million. These aren’t niche utilities — they’re load-bearing infrastructure for the entire Python ecosystem. As of March 19, 2026, OpenAI owns all of it. The acquisition folds Astral’s team into OpenAI’s Codex coding agent division. Both companies promise the tools stay open source. But the developer community is already asking the obvious question: what happens when a company racing to dominate AI-powered coding suddenly controls the tools millions of developers depend on every day? ...