Microsoft introduces agent technology to Visual Studio, featuring curated assistants and personalized agent creation tools.
It's more than just a code editor.
A repository platform built around AI models could reshape developer workflows and reduce OpenAI’s reliance on Microsoft’s ecosystem.
GPT-5.3-Codex moved to No. 1 in Quality on the Microsoft Foundry AI Model Leaderboard soon after release, while a cross-metric 'podium' scoring method put GPT-5-Nano on top overall for efficiency.