Audience

Web developers and browser extension teams that need an efficient on-device language model for prompt assistance, writing tools, and private AI-powered web experiences in Microsoft Edge

About Aion 1.0 Instruct

Aion-1.0-Instruct is a pre-release small language model introduced in Microsoft Edge as a developer preview for early testing and feedback. It is designed to power Edge’s on-device Prompt and Writing Assistance APIs, giving web developers a faster, smaller, and more efficient model for AI-powered browser experiences. Microsoft previously used Phi-4-mini for these APIs, but its hardware requirements limited availability across devices. Aion-1.0-Instruct expands support to significantly more devices, including machines with less capable GPUs and, through CPU inference, devices without a GPU, while still delivering strong quality for a wide range of web use cases. The model is available in Edge Canary and Dev channels, allowing developers to evaluate it in real-world web scenarios, test API interoperability, and provide feedback before final optimizations. Aion-1.0-Instruct is meant to help developers build AI features directly into websites and browser extensions.

Integrations

API:
Yes, Aion 1.0 Instruct offers API access

Ratings/Reviews

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
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Company Information

Microsoft
Founded: 1975
United States
blogs.windows.com/msedgedev/2026/06/02/expanding-on-device-ai-in-microsoft-edge-new-models-and-apis-for-the-web/

Videos and Screen Captures

Aion 1.0 Instruct Screenshot 1
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Product Details

Platforms Supported
Windows
Mac
Training
Documentation
Live Online
Videos
Support
Online

Aion 1.0 Instruct Frequently Asked Questions

Q: What kinds of users and organization types does Aion 1.0 Instruct work with?
Q: What languages does Aion 1.0 Instruct support in their product?
Q: What kind of support options does Aion 1.0 Instruct offer?
Q: What other applications or services does Aion 1.0 Instruct integrate with?
Q: Does Aion 1.0 Instruct have an API?
Q: What type of training does Aion 1.0 Instruct provide?

Aion 1.0 Instruct Product Features