Fable flags or refuses too many questions because of it's "policy"
Safety lobotomy by Anthropic
10:38 AM · Jun 9, 2026 · 151 Views
Anthropic's Fable 5 Max draws industry backlash as strict safety filters block advanced mathematics, biology, and chemistry queries
AI Judge changed title after evaluation, original title: "Abacus.AI CEO Bindu Reddy blames Anthropic's safety policies after Fable 5 Max blocks basic math and science queries"
Story Overview
Anthropic's new Fable 5 model, released as the public version of its Mythos-class system, routes queries on topics like phases of matter, cyclic groups, and PCR primer design to an older model when its classifiers flag potential risks in chemistry, biology, or cybersecurity, prompting Abacus.AI CEO Bindu Reddy to call out the approach as overly restrictive safety training.
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Policy Risk
Classifiers cover whole domains rather than narrow threats
Anthropic applies broad detection across cybersecurity, biology, and chemistry prompts, swapping in Claude Opus 4.8 for flagged inputs and notifying users, which creates blocks on standard scientific queries even when no clear malicious intent appears.
Pricing Watch
Pricing jumps while safeguards stay in place for now
API access starts at $10 per million input tokens and $50 per million output tokens with existing subscriptions covering use only through June 22 before credits kick in, and a narrower trusted program for life sciences is still in planning stages.
Sentiment
Many users slammed Fable and Anthropic models for excessive safety refusals blocking math, code, and science queries as overreach that renders them worthless, while a few praised unrestricted alternatives.
Pos
13.3%
Neg
86.7%
8 comments with sentiment.
Cluster Engagement
Posts from X
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Most Activity
VIEWS2.7K
Hand Banana@__hand_banana
Fable can't even talk about PCR primer design without generating refusals. I can only infer than ant has zero biology people actually involved in prerelease testing.
1hViews 2.7KLikes 27Bookmarks 0
BOOKMARKS2RETWEETS2
Beff (e/acc)@beffjezos
This is the dark timeline.
Gatekeeping math knowledge is how we end up in a stone age nanny state.
Massive step backwards in terms of freedom.
Martin Shkreli@MartinShkreli
"DANGEROUS MATH" a story in two acts.
31mViews 1.9KLikes 28Bookmarks 2
LIKES42
Martin Shkreli@MartinShkreli
@FirstName5000 the free market capitalism American math
2hViews 1.8KLikes 42
REPLIES4
Julien Chaumond@julien_c
lol I think the super high frequency of refusals may backfire a bit on Fable and anthropic
From early feedback
Why pay 2x if I have 70% probability of refusal?
1hViews 910Likes 22Bookmarks 0
First Name@FirstName5000
@jeffcafe_ @MartinShkreli Price gouging is not capitalism its greed you gay simp loser retard
2hViews 91Likes 1
First Name@FirstName5000
@MartinShkreli WWhat math did you use when you raised the price of Daraprim by 5,500% ???
2hViews 2KLikes 4
Doz@colombiagrad
@MartinShkreli Enough larping brother, can u even pass a complex analysis course
2hViews 1.9KLikes 4
SlackerCapital@amidnightstroll
@MartinShkreli I now you're not asking Claude about this but yes some math is restricted for national security reasons
2hViews 503Likes 1Bookmarks 1
First Name@FirstName5000
@jeffcafe_ @MartinShkreli Lol because he is a greedy selfish scumbag, duh!
2hViews 240Likes 1
Dylan Field@zoink
@MartinShkreli No such thing as “simply a discussion about algebra & group theory”
You should know this. Shame! 4.8 forever!
(Same thing happened to me lol)
2hViews 779Likes 7
Bambio@Bambio349422
@MartinShkreli There is no such thing as math that is dangerous? Are you retarded?
1hViews 70
Jeffcafe, private detective@jeffcafe_
@FirstName5000 @MartinShkreli Just don’t like commies. You’re just criticizing capitalism.
2hViews 92Likes 3
Jeffcafe, private detective@jeffcafe_
@MartinShkreli @FirstName5000 I don’t know why you still catch shit for that when it wasn’t what you were convicted for…
2hViews 265Likes 2
Th0m@$ Cr0〰️n€ ⚡️⚡️@excathedraa
@MartinShkreli This is such obvious marketing bullshit I can’t believe people fall for it. It’s like Viagra commercials saying you might need to go to a doctor for a 6 hour boner. “This product is so powerful it might do something bad”! Such obvious bullshit.
2hViews 605Likes 1
Jeffcafe, private detective@jeffcafe_
@FirstName5000 @MartinShkreli Commies when the market prices goods and services without their input.
2hViews 19Likes 3
Martin Shkreli@MartinShkreli
@FirstName5000 @jeffcafe_ is there a price for medicine that you would set? what would you have charged?
1hViews 59Likes 2
Martin Shkreli@MartinShkreli
@colombiagrad this is what AI is for!
@ebarschkis
2hViews 1.8KLikes 3
Jeffcafe, private detective@jeffcafe_
@FirstName5000 @MartinShkreli Ok, but isn’t him getting convicted of a Ponzi the better demonstration of that than raising the price on something in a way that was perfectly legal? Lol
2hViews 160Likes 1
Tom@TomSzczypka
@MartinShkreli We need to start a Math Lobby before it gets banned Ideas have always been the most dangerous thing, word is getting out
2hViews 800Likes 3
Hand Banana@__hand_banana
It would be more honest of them just to say "we refuse all biology questions" than "we have a biology 'safety filter'"
1hViews 60Likes 1
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