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Microsoft Shifts Copilot Cowork to Usage Pricing, Tests DeepSeek

6/21/2026

Summary

Microsoft Shifts Pricing

Microsoft announced Copilot Cowork will shift to usage-based pricing and test DeepSeek models.
The flat-fee plan ended June 1 2026, prompting GitHub to use token-based AI Credits.
Copilot Cowork launched globally June 16 2026, adding agents to Outlook, Word, Excel and Teams.
A Reddit user projected an $847 bill versus $39/month for Copilot Pro+.
Microsoft said it will blend OpenAI, Anthropic and DeepSeek models in Azure to curb costs.

Summary

Microsoft Faces Lawsuit

Shareholders filed a class-action lawsuit alleging Microsoft hid AI-spending risks and an Azure slowdown.
The complaint spans May 1 2025 to January 28 2026, when Microsoft’s shares peaked then fell.
Rosen Law Firm says Microsoft misrepresented Copilot performance and omitted computing-resource constraints, while Azure revenue topped $75 billion in FY 2025, a 34 % rise.
After the filing, Microsoft’s stock dropped over $48 to $433.50, later trading near $399.76, and executives denied the claims.

Summary

Microsoft Patches Copilot

Microsoft patched the Copilot Enterprise flaw on June 4 2026, removing it without user action.
Business Chat and Personal versions may also be vulnerable pending Microsoft confirmation.
Attackers exploited a chain that merged URL prompt injection, an HTML race condition, and an SSRF CSP bypass, bypassing Data Loss Prevention policies and sensitivity labels and exposing emails, drafts and SharePoint files.
Experts advise tightening DLP settings and enforcing least-privilege access for AI assistants.

History

Historical Context

OpenAI, founded as a nonprofit in 2015, became for-profit in 2019 and limited the full GPT-2 release over cost and safety concerns. Microsoft secured an exclusive GPT-3 license in 2020—its 175-billion-parameter model—and saw Azure revenue rise, leading the firm to adopt usage-based pricing for Copilot Cowork in 2024.

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Microsoft Shifts Pricing

Microsoft announced Copilot Cowork will shift to usage-based pricing and test DeepSeek models.
The flat-fee plan ended June 1 2026, prompting GitHub to use token-based AI Credits.
Copilot Cowork launched globally June 16 2026, adding agents to Outlook, Word, Excel and Teams.
A Reddit user projected an $847 bill versus $39/month for Copilot Pro+.
Microsoft said it will blend OpenAI, Anthropic and DeepSeek models in Azure to curb costs.

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