Blog Post

Educator Developer Blog
4 MIN READ

Building Application with gpt-oss-20b with AI Toolkit

kinfey's avatar
kinfey
Icon for Microsoft rankMicrosoft
Aug 11, 2025
OpenAI has released the open-source models gpt-oss-20b and gpt-oss-120B. Enterprises and developers can now deploy these models on edge devices without relying on cloud APIs, enabling local deploymen...
Updated Aug 11, 2025
Version 1.0
subhankars's avatar
subhankars
Copper Contributor
Aug 19, 2025

When I select GPT-OSS (Local via Ollama) in agent builder, it says Tool Not Supported and I can’t select any MCP like you showed in your screenshots. Whereas other models deployed in foundry can. What am I doing wrong? 

  • kinfey's avatar
    kinfey
    Icon for Microsoft rankMicrosoft
    Aug 20, 2025

    Hi 

    1. Update your AITK in new version

    2. Suggest you to use VSCode Insiders