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OpenAI Codex Expands with Agent Skills for Customizable Task Automation

OpenAI Codex Expands with Agent Skills for Customizable Task Automation

OpenAI has unveiled Agent Skills for Codex, enabling developers to extend the AI assistant with reusable, task-specific capabilities. This feature allows packaging instructions, scripts, and resources into modular skills for explicit or implicit invocation, streamlining workflows across CLI and IDE environments.

AI Agent Showdown: Claude, Gemini, and Codex Compete to Capture a Writer’s Voice

In a head‑to‑head test, three prominent AI coding agents—Claude, Gemini, and Codex—were tasked with dissecting 13 years of blog posts to distill a single author’s style. The results revealed that proper configuration and model selection trump sheer context size, with Claude emerging as the most thorough, while Codex and Gemini closed the gap after a critical bug fix.
OpenAI Prepares GPT-5.1 Rollout with Enhanced Reasoning and Pro Tiers, Plus Codex Efficiency Gains

OpenAI Prepares GPT-5.1 Rollout with Enhanced Reasoning and Pro Tiers, Plus Codex Efficiency Gains

OpenAI is set to launch its GPT-5.1 model family—including base, Reasoning, and a $200/month Pro version—within weeks, promising faster performance and better health safeguards. Simultaneously, the new GPT-5-Codex-Mini offers developers 50% higher rate limits and quadrupled usage capacity, signaling a push for cost-effective AI scaling. This update arrives amid intensifying competition from Google's Gemini 3 Pro and Anthropic's Claude, accelerating the generative AI arms race.

Amateur AI Research: Training Transformers on a Laptop with OpenAI's Codex

A developer documents their experimental journey using OpenAI's Codex to train the strongest possible language model on a consumer laptop within five minutes. The breakthrough came through distilling transformer knowledge from n-gram models, yielding surprisingly coherent short stories and challenging assumptions about optimization metrics.