Microsoft tests in-house AI models to lower Copilot costs
Microsoft has begun testing the redirection of AI workloads for Excel and Outlook to its own, internally developed MAI models, aiming to evaluate the potential for cost reductions for Copilot.
What happened?
Microsoft is now redirecting portions of AI prompts from Excel and Outlook to its proprietary MAI models. Reported on 9 July 2026, this forms part of an internal test to assess whether Copilot's costs can be reduced. The objective is to achieve this without compromising service performance or user experience.
Key facts
| Datum för rapportering | 9 juli 2026 |
|---|---|
| Berörda produkter | Excel, Outlook (via Copilot) |
| Syfte | Sänka kostnader för Copilot |
”Microsoft is reportedly routing some Excel and Outlook AI prompts to its own MAI models, testing whether Copilot costs can fall without hurting quality.”
Why it matters
This strategic move signals Microsoft's ambition to optimise the efficiency of its AI services. By integrating proprietary models, the company can potentially reduce reliance on external providers and gain greater control over infrastructure costs. The initiative is vital for ensuring the long-term economic viability of Copilot, given the high operational costs associated with generative AI.
Who is affected?
Tests of internal AI models primarily affect Microsoft's internal development teams and AI engineers. In the long term, these changes may benefit Microsoft 365 users, including those relying on Copilot in Excel and Outlook, through potentially more stable and cost-effective services. Enterprises using Copilot may also see benefits through reduced service costs.
What else you should know
Microsoft has invested significant resources into developing proprietary AI capabilities. Testing new models is a natural part of maturing AI products and streamlining operations.
Quick answers about this story
Vad har hänt?
När hände det?
Varför spelar det roll?
Vilka produkter berörs?
The link opens in a new window and leads to the publisher's own site.
Källan har spårats automatiskt från utgivaren via Aheadlines signalkedja.
AI-verktyg i artikeln
Topics
Get similar news straight to your inbox
The reader's room
Send in a question or an addition. The newsroom reads everything before it's published and replies when relevant. No AI-generated text – just people.
Sign in to submit a comment or question.
Read the article through your role
- Decide whether this affects strategy over 6–12 months or is just noise.
- Discuss with leadership: do we own the right question or does ownership need to move?
- Ask: what risk are we taking by NOT acting on this this quarter?
Generated angle — not editorial analysis of "Microsoft tests in-house AI models to lower Copilot costs"