topic
Codex
3 posts tagged Codex.
AI Dev Tooling4 min read
OpenAI DevDay 2026: Ultrafast Inference, Decisions API and Codex Security
OpenAI's DevDay keynote shipped a speed tier, a low-latency decision primitive, ChatGPT sign-in for third-party apps and an open-source security scanner. Here's what builders should take from Simon Willison's live blog of the day.
- openai
- devday
- coding-agents
- codex
- llm-apis
Vibecoding4 min read
One Prompt, Two Agents: Codex's Sub-Agents Out-Build Claude at Vibecoding
Simon Willison gave the same four-year-old game prompt to Claude Fable 5 and to Codex Desktop running GPT-5.6 Sol Ultra. The sub-agent-heavy Sol Ultra run shipped the more complete game — and published its exact cost.
- vibecoding
- agentic-coding
- codex
- claude-code
- ai-dev-tools
Vibecoding & AI Dev Tools3 min read
OpenAI x Work Louder: A Codex Macro Pad Built for AI-Assisted Coding
OpenAI is collaborating with peripheral maker Work Louder on a Codex-branded macro pad, due July 15, 2026. A small device with a big signal: agentic coding workflows are mature enough to earn dedicated hardware.
- openai
- codex
- ai dev tools
- vibecoding
- hardware