OpenAI says new coding model helped build itself

The new coding model released Thursday afternoon, entitled GPT-5.3-Codex, builds on OpenAI’s GPT-5.2-Codex model and combines insights from the AI company’s GPT-5.2 model, which excels on non-coding ...

With GPT-5.3-Codex, OpenAI pitches Codex for more than just writing code

Today, OpenAI announced GPT-5.3-Codex, a new version of its frontier coding model that will be available via the command line ...
Nature

Open-source AI tool beats giant LLMs in literature reviews — and gets citations right

Researchers have published the recipe for an artificial-intelligence model that reviews the scientific literature better than ...

Apple integrates Anthropic’s Claude and OpenAI’s Codex into Xcode 26.3 in push for ‘agentic coding’

Apple's Xcode 26.3 integrates Anthropic's Claude and OpenAI's Codex, letting AI agents autonomously write, build, and test code—sparking debate over security and the future of software development.

OpenAI's Codex just got its own Mac app - and anyone can try it for free now

Switching between IDE, terminal, and app keeps context across tools.

I tried a Claude Code alternative that's local, open source, and completely free - how it works

I was curious if Block's Goose agent, paired with Ollama and the Qwen3-coder model, could really replace Claude Code. Here's how I got started.