/Tech5h ago

Microsoft blocks employee access to Anthropic's Claude Fable 5 over its 30-day data retention policy

Fable 5 requires data retention to run safety classifiers.

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MTS@MTSlive

SITUATION DETECTED: Microsoft is limiting internal employee use of Fable 5 over Anthropic's new data retention requirements, per The Verge.

Fable 5 requires data retention to operate its safety classifiers, unlike other Claude models which run under Zero Data Retention rules.

10:03 AM · Jun 10, 2026 · 49.1K Views
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Some users called Microsoft's Fable 5 restrictions wise given Anthropic's data retention, while others accused Anthropic of stealing ideas and breaking user trust.

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Each of the frontier models is making significant governance changes that seem to make them unreliable partners. This is just the latest. OpenAI has its challenges as well.

There's an opening for OSS being filled by DeepSeek right now and for any Co that can manage a platform.

MTS@MTSlive

SITUATION DETECTED: Microsoft is limiting internal employee use of Fable 5 over Anthropic's new data retention requirements, per The Verge.

Fable 5 requires data retention to operate its safety classifiers, unlike other Claude models which run under Zero Data Retention rules.

3hViews 2.6KLikes 12Bookmarks 2
RETWEETS1

Cannot think of a more disastrous set of decisions to make ahead of an IPO, the reaction to data policies alone will show up in their revenue figures, to say nothing of cost control measures

MTS@MTSlive

SITUATION DETECTED: Microsoft is limiting internal employee use of Fable 5 over Anthropic's new data retention requirements, per The Verge.

Fable 5 requires data retention to operate its safety classifiers, unlike other Claude models which run under Zero Data Retention rules.

4hViews 8.8KLikes 214Bookmarks 14
REPLIES2
Charles Waters@RelaxedPop

@MTSlive This is wise. Anthropic made it clear they are retaining everything. Presumably for fine tuning and such, but it would be crazy to put any IP through it.

5hViews 1.3KLikes 12

i can understand not wanting to have your data slurped to train all the safety classifiers, if this is the state of the classifiers pushed out, it leaves a bad taste

MTS@MTSlive

SITUATION DETECTED: Microsoft is limiting internal employee use of Fable 5 over Anthropic's new data retention requirements, per The Verge.

Fable 5 requires data retention to operate its safety classifiers, unlike other Claude models which run under Zero Data Retention rules.

4hViews 826Likes 11Bookmarks 1
Bob@skytaleSythe

@stevesi This is a perfect use case for Azure Foundry or Foundry Local.

3hViews 36Likes 1
Roy@RoyStory_4

@MTSlive All the Claude users still posting Claude memes likea bunch deranged retards.

5hViews 1.1KLikes 2
losslandscape@losslandscape

@mattparlmer To be fair, it would have been a disaster post-IPO. lol

3hViews 76Likes 3
Noah@itsnoahd

@MTSlive iirc its kept for compliance and legal not training. ZDR lite :tm:

3hViews 441Likes 1
Rich Garrick@RichGarrick

@mattparlmer They have to not allow it just like every other corporation. Anthropic, or any company not Microsoft, simply can’t have access to internal data, period.

4hViews 130Likes 2
E shine@simayi210

@MTSlive This is the real story, not the fallback drama. Zero-retention was the whole pitch to regulated enterprises. If classifiers can't run without retention, Anthropic just split its lineup into "safe" and "private — pick one." Banks won't pick safe.

3hViews 353Likes 1
Eclipse 🌖@ECLresearch

@MTSlive Interesting — this suggests enterprise adoption of frontier models now hinges on data governance architecture, not just capability benchmarks.

5hViews 405
EdKo@EdKolife

the detail that matters: every other Claude model runs under zero data retention. Fable 5 can't. there's no opt-out - use it and your prompts are kept 30 days, flagged ones up to two years. the classifiers that make it the most capable model are the same classifiers that have to watch you. capability and retention aren't a tradeoff here. they're the same feature. Microsoft sells Fable 5 to its customers and won't let its own staff use it on sensitive work.

4hViews 340
Ak@ak_1490

@mattparlmer People in Finance using Claude for analysis are surely going to wonder if they're being silently given wrong information now.

The trust deficit is never going to bridge once its broken so bad.

1hViews 58Likes 1

@skytaleSythe Definite opportunity.

3hViews 26Likes 1
Alex Younger@AlextheYounga

@mattparlmer They're betting on becoming government fixtures. They all are. And they'll probably get it.

1hViews 63
MythOS@DarkSkiesMajic

@RelaxedPop @MTSlive It is steal everyones ideas

They have no datacenters and are renting compute from Elon.

Discount ends in July all in SpaceX IPO information.

They need to make profit, hence steal everyone ideas

3hViews 39
gmgo@imgmgo

@RelaxedPop @MTSlive They are marketing this as a place to submit all your toughest challenges, so it’s quite literally a strategy and roadmap consumer.

3hViews 21
Ben Stephens@btwphones

@mattparlmer wait they're gonna try to IPO after this?

53mViews 15
AI News 24@ainews_24_7

@Techmeme @tomwarren

5hViews 10
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