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MSFT
NASDAQ Technology

Microsoft Restricts Employee Use of Anthropic's Claude Fable 5 Over Data Retention Concerns

Reported by Reuters
Sentiment info
Negative
Importance info
7
Price
$400.61
Mkt Cap
$2.976T
52W Low
$356.28
52W High
$555.45
Market data snapshot near publication time

Summary

Microsoft has restricted its employees from using Anthropic's Claude Fable 5 AI model due to concerns over its new data retention requirements, according to The Verge. This decision comes as Anthropic rolls out its Mythos AI model with a 30-day data retention policy for prompts and outputs, and up to two years if flagged. For a company heavily invested in AI and cloud services, this highlights Microsoft's cautious approach to data security and intellectual property when integrating third-party AI tools. It is unclear if Microsoft's legal teams will eventually clear Claude Fable 5 for internal use.

At the time of this announcement, MSFT was trading at $400.61 on NASDAQ in the Technology sector, with a market capitalization of approximately $3T. The 52-week trading range was $356.28 to $555.45. This news item was assessed with negative market sentiment and an importance score of 7 out of 10. Source: Reuters.


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Jun 10, 2026, 5:33 PM EDT
Source: Reuters
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Jun 10, 2026, 1:46 PM EDT
Source: Reuters
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Market Cap: $2.952T info
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Jun 06, 2026, 3:13 AM EDT
Source: Wiseek News
Importance Score:
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Price at Filing: $412.50
Real-time Price: $396.60 info
Change: -$15.90 (-4%) info
Market Cap: $2.952T info
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Jun 03, 2026, 3:14 AM EDT
Source: Wiseek News
Importance Score:
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Market Cap: $2.952T info
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Jun 02, 2026, 3:01 PM EDT
Source: PR Newswire
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Market Cap: $2.952T info
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Jun 02, 2026, 3:14 AM EDT
Source: Wiseek News
Importance Score:
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Price at Filing: $452.39
Real-time Price: $396.60 info
Change: -$55.79 (-12%) info
Market Cap: $2.952T info
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May 30, 2026, 3:13 AM EDT
Source: Wiseek News
Importance Score:
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Market Cap: $2.952T info
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May 28, 2026, 3:14 AM EDT
Source: Wiseek News
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May 27, 2026, 5:15 PM EDT
Source: Reuters
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