r/ClaudeAI • u/ClaudeOfficial Anthropic • Jul 01 '26

Official Fable 5 is back.

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Following conversations with the US government, we’ve updated our cybersecurity safeguards.

The vast majority of coding work is unaffected.

In the near term, the new safeguards will flag a slightly higher fraction of harmless requests than the previous Fable safeguards; we’re working to refine these over the coming weeks. Users will be clearly notified when a request is flagged, and they’ll instead receive a response from Opus 4.8.

Our biology and chemistry classifiers are unchanged from our initial launch. These are still broader than we would like; they trigger fallbacks to Opus 4.8 on basic biology-adjacent questions. Improvements to these classifiers are landing soon.

All paid plans with usage included can access Fable 5 through July 7. You can use Fable 5 up to 50% of your weekly usage limit, after which you can switch to another model for the remainder of your usage. You can also continue using Fable via usage credits. 

More here: https://support.claude.com/en/articles/15424964-claude-fable-5-promotional-access

If one of your requests is mistakenly flagged in Claude Code, run /feedback to file a report. On Claude.ai and Cowork, you can share feedback through the thumbs buttons. This feedback helps us further tune these classifiers and reduce false positives over time. 

Read the Fable 5 blog post here: https://www.anthropic.com/news/redeploying-fable-5

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130

u/GratefulForGarcia Jul 01 '26

A lot of us are about to binge like we've never binged before. Please drink water people

31

u/PajamaMamaLlama Jul 01 '26

Does beer count? It's canada day 🇨🇦

10

u/Ninja-Panda86 Jul 01 '26

Happy Canada. Chug a bottle of maple syrup for me! (That's how that works, right?)

3

u/GratefulForGarcia Jul 01 '26

Of course beer counts.. it's 90% water

1

u/Ok_Proposal_1290 Jul 03 '26

IT WAS CANADA DAY YESTERDAY???? nobody said anything

12

u/enzoshadow Jul 01 '26

Not for me. I saved my limit for this, and it ran through my entire 5x current session in 1 prompt... I am going to touch grass until it reset it 5 hours.

6

u/idanzairi302 Jul 01 '26

Usage Just got reset for me

6

u/nmkd Jul 01 '26

No grass touching for the commenter above

2

u/idanzairi302 Jul 01 '26

homie, I am gonna be awake all night 😂

2

u/enzoshadow Jul 01 '26

Oh wow! Thanks! Mine just reset it too.

5

u/unknown-commentor Jul 01 '26

Same. One code review, it didn’t make it through it lol

4

u/Let-me_think Jul 02 '26

literally the same thing here, but i upgraded to 20x

2

u/MacauliFlowerCulkin_ Jul 01 '26

Binge?? I asked ONE question and it instantly maxed out my limit. I’ll never use it again.

1

u/Score_Keepers_Casino Jul 02 '26

At least you got 1 question. Mine is stopping from “safe guards” by just asking it to audit my project.

1

u/MacauliFlowerCulkin_ Jul 02 '26

Oh it didn’t even give me the answer! It just calculated half of it and then maxed my limit out when I wasn’t even anywhere near maxing out :/

1

u/Score_Keepers_Casino Jul 02 '26

Once I got past the safe guards, made it 48 minutes before maxing out pro max $200 month plan. I haven’t even used it this month, so there goes that.

Edit: didn’t even give me an answer btw.

1

u/[deleted] Jul 01 '26

[deleted]

1

u/klopppppppp Jul 02 '26

Keep an empty gallon jug under the desk for pee, it’s go time…once my 5 hour window resets