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Storia in 12 fonti

I Had 72 Hours With the Best AI Model Ever Released. Then the Government Took It Away.

Fable 5 crushed every benchmark, redefined what AI coding assistants could do, and disappeared before most developers even got to try it. Here's what we lost.

Raccontata dathenextweb.comsecurityweek.comzdnet.comforbes.comwired.comtimesofindia.indiatimes.comdev.totomshardware.comzerohedge.comnews.bitcoin.comchannel4.comaxios.com

Confronto fonti

6 prospettive sulla stessa storia
AI · summaries
thenextweb.com1 g fa

Fable 5 vs GPT 5.5: Anthropic's model dominated every benchmark, then the government pulled it

Fable 5 dominated every benchmark (80% vs 59% SWE-Bench) but was pulled by the US government after three days for jailbreak flaws. GPT 5.5 leads by regulation, not capability; the 22-point SWE-Bench gap impacts coding workloads, though OpenAI's lower cost ($5/$30 vs $10/$50) eases the shift.

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dev.to2 g fa

The Paradox of Power: Why Anthropic Released and Then Restricted Claude Fable 5

Anthropic released Claude Fable 5 on June 9, but US government shut it down within 72 hours: the model autonomously discovered 10,000+ zero-day vulnerabilities. For CTO decision-making: frontier AI at maximum capability creates unmanageable dual-use risk, forcing trade-offs between commercialization and safety that only government restrictions can resolve.

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forbes.com2 g fa

Anthropic's Fable Lockdown Raises New Questions About AI Regulation

Commerce Department ordered Anthropic to block non-US access to Fable 5 after detecting jailbreaks in guardrailed Mythos. The mandatory export-licensing precedent risks accelerating international brain drain, forcing global AI researchers to relocate outside US oversight.

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news.bitcoin.com2 g fa

Fable 5 Shutdown: US Export Controls Force Anthropic Offline, Pre-IPO Speculators Bleed

Anthropic shut down Fable 5 and Mythos 5 on June 12 after U.S. Commerce Department export controls for national security. Regulatory risk on frontier AI now reshapes IPO strategy, valuations, and enterprise foundation model selection.

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wired.com2 g fa

Anthropic Says It’s Taking Claude Fable 5 Offline to Comply With US Government Order

Anthropic disabled Claude Fable 5 and Mythos 5 after US government order citing a jailbreak bypassing safeguards for cybersecurity, biology, and chemistry. This escalates government AI oversight with compliance risks for enterprises adopting frontier models.

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zerohedge.com2 g fa

Anthropic Blocks Foreign Access To Fable 5, Mythos 5 After U.S. National Security Order

"This is definitely what got Fable banned..."

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Timeline cronologica

  1. venerdì 12 giugno 2026·thenextweb.com

    Claude Fable 5 curbs: aimed at China, hit AI researchers

    Anthropic built Claude Fable 5 curbs to keep China's AI labs out. The fiercest backlash came from Western researchers, and the company has already blinked.

  2. venerdì 12 giugno 2026·securityweek.com

    Anthropic Disputes Fable 5 AI Jailbreak

    Anthropic has disputed allegations of a prompt-based jailbreak affecting its recently launched Claude Fable 5 AI model.

  3. venerdì 12 giugno 2026·securityweek.com

    Industry Reactions to Claude Fable 5: Feedback Friday

    Industry professionals comment on various aspects of Fable 5, including dual-use capabilities, safeguards, and tiered access.

  4. venerdì 12 giugno 2026·zdnet.com

    Claude Fable 5 secretly throttled AI researchers, and the internet went wild

    Claude Fable 5 gave users access to Mythos-class power, but its hidden safeguards turned a safety feature into a trust problem for Anthropic.

  5. sabato 13 giugno 2026·forbes.com

    Anthropic’s Fable Is Locked Down As US Takes AI Safety Into Its Hands

    Anthropic's Fable AI shut down by White House. Directive limiting access to US nationals reveals a tension: when AI safety advocacy meets government regulation.

  6. sabato 13 giugno 2026·forbes.com

    Anthropic Pulls Fable, Mythos After Government Issues Emergency Export Control Order

    The U.S. government ordered Anthropic to pull Fable 5 and Mythos 5 over national security concerns just days after its CEO called for exactly this kind of oversight.

  7. sabato 13 giugno 2026·forbes.com

    Anthropic's Fable Lockdown Raises New Questions About AI Regulation

    Anthropic's Fable AI was shut down following a U.S. government directive limiting access to U.S. nationals, exposing growing tensions between AI safety and regulation.

  8. sabato 13 giugno 2026·forbes.com

    Anthropic’s Fable 5 Safeguards Were Always A ‘Judgement Call’

    In an interview hours before the U.S. government issued a directive to disable Anthropic’s newest AI model, the company’s Chief Commercial Officer told Forbes about the tradeoffs…

  9. sabato 13 giugno 2026·wired.com

    Anthropic Says It’s Taking Claude Fable 5 Offline to Comply With US Government Order

    “The government believes it has become aware of a method of bypassing, or ‘jailbreaking’ Fable 5,” the company said in a blog post.

  10. sabato 13 giugno 2026·timesofindia.indiatimes.com

    As US bans Fable 5 and Mythos 5, Anthropic shares a 700-plus word statement; says ‘we believe the government …’

    Anthropic released a special version of its Mythos AI model — called Fable 5 — earlier this week, making some of the advanced capabilities of its tightly controlled Mythos system…

  11. sabato 13 giugno 2026·securityweek.com

    Anthropic Says It Has Taken Its Latest AI Models Offline to Comply With New Export Controls

    Anthropic takes Fable 5 and Mythos 5 offline to comply with a directive from the Trump administration to prevent use by foreign nationals.

  12. sabato 13 giugno 2026·dev.to

    The Paradox of Power: Why Anthropic Released and Then Restricted Claude Fable 5

    On June 9, 2026, Anthropic released Claude Fable 5, which was described as the most capable AI model...

  13. sabato 13 giugno 2026·tomshardware.com

    U.S. gov't orders Anthropic to disable its newest AI models worldwide due to security threats — ban on Claude Fable 5 and Mythos 5 bars…

    An alleged jailbreak triggered a national security directive that forced the model to be pulled.

  14. sabato 13 giugno 2026·dev.to

    Claude Fable 5 lasted three days. Then the US government pulled it.

    On Tuesday this week I was reading launch coverage that told me to try Claude Fable 5 soon. By Friday...

  15. sabato 13 giugno 2026·zerohedge.com

    Anthropic Blocks Foreign Access To Fable 5, Mythos 5 After U.S. National Security Order

    "This is definitely what got Fable banned..."

  16. sabato 13 giugno 2026·news.bitcoin.com

    Fable 5 Shutdown: US Export Controls Force Anthropic Offline, Pre-IPO Speculators Bleed

    The U.S. Commerce Dept. forced Anthropic to shut down Fable 5 and Mythos 5, sending pre-IPO markets into a sharp decline.

  17. sabato 13 giugno 2026·dev.to

    Claude Fable 5: The Best AI Model You’re Not Allowed to Use

    Anthropic’s Mythos Offensive: Between One-Shot Wonders, US Export Controls, and the Question of Who...

  18. sabato 13 giugno 2026·channel4.com

    Fable: US government bans Anthropic AI model for non-American nationals

    Late last night the US government took the dramatic step of issuing an order limiting access to the latest Anthropic AI model, called Fable, for all non-American nationals,…

  19. sabato 13 giugno 2026·dev.to

    Frontier Bakeoff: We Benchmarked Fable 5 Hours Before the Shutdown

    Four frontier models, ten tasks, one government shutdown. We ran Claude Fable 5 through the homelab benchmark harness three hours before Anthropic pulled the plug — and it came in…

  20. sabato 13 giugno 2026·axios.com

    How Amazon and the White House ended Anthropic's Fable

    The episode highlights the reactionary approach to a technology that is moving at breakneck speed.