AI Digest
OpenAI Opens Codex to Open Models and ChatGPT to MCP Plugins
OpenAI's core surfaces opened to outsiders, with open models like GLM-5.3 Flash and Kimi K3 reportedly running natively in Codex under existing OpenAI commits, while ChatGPT gained the ability to build, host, and distribute MCP servers and plugins. Elsewhere, @ajassy announced DuckDB inside Aurora PostgreSQL for single queries across live and S3 data, and open-weight releases kept stacking up, led by Ant Ling's Ling-3.1-flash tease.