By Paul Thurrott
Publication Date: 2026-06-02 17:40:00
Tied to the earlier Windows 11 developer news, Microsoft is also bringing more local AI capabilities to its Edge web browser too.
“At Build 2025, we introduced the Prompt and Writing Assistance APIs in Microsoft Edge with the Phi-4-mini language model,” Microsoft’s Sohum Chatterjee writes. “Since then, we’ve heard from web developers, incorporated your feedback, and expanded Edge’s on-device AI capabilities with new models and APIs.”
There are three on-device AI updates for Microsoft Edge:
Aion-1.0-Instruct. This local small language model (SLM) is smaller, faster, and more efficient than Phi-4-mini, and it works on many more PCs, including those with less-capable GPUs and CPUs. It’s now available in developer preview so you can test its functionality and API interoperability. It will come to Hugging Face in July, but you can check out the documentation for the Prompt API and Writing Assistance APIs and experiment with playground samples,
Language…
