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TUE · 2026-06-09 · 18:35 GMTBRIEF NSR-2026-0609-83090
News/Version of AI tool 'too powerful for public' released to pub…
NSR-2026-0609-83090News Report·EN·Technology

Version of AI tool 'too powerful for public' released to public

Anthropic has released Claude Mythos 5, a version of its AI program previously deemed "too powerful for public" due to its advanced capabilities and lack of limitations on areas like cybersecurity and biology. This release follows a preview period where approximately 150 groups, including cyberdefenders and infrastructure providers, gained access.

BBC News - WorldFiled 2026-06-09 · 18:35 GMTLean · CenterRead · 1 min
Version of AI tool 'too powerful for public' released to public
BBC News - WorldFIG 01
Reading time
1min
Word count
248words
Sources cited
2cited
Entities identified
8entities
Quality score
100%
§ 01

Briefing Summary

AI-generated
NEWSAR · AI

Anthropic has released Claude Mythos 5, a version of its AI program previously deemed "too powerful for public" due to its advanced capabilities and lack of limitations on areas like cybersecurity and biology. This release follows a preview period where approximately 150 groups, including cyberdefenders and infrastructure providers, gained access. These groups have reportedly identified over 10,000 critical security flaws in their systems using the AI. Anthropic plans to expand access to Mythos 5 through a broader trusted program. The company, nearing a $1 trillion valuation, highlighted that Mythos 5, like its counterpart Fable, can operate "unattended" for extended periods. This development comes as Anthropic co-founder Jack Clark expressed concerns about the rapid advancement of AI, suggesting a need for mechanisms to slow its progress.

Confidence 0.90Sources 2Claims 5Entities 8
§ 02

Article analysis

Model · rule-based
Framing
Technology
Economic Impact
Tone
Mixed Tone
AI-assessed
CalmNeutralAlarmist
Factuality
0.70 / 1.00
Factual
LowHigh
Sources cited
2
Limited
FewMany
§ 03

Key claims

5 extracted
01

The AI industry has a gas pedal but no brake pedal.

quoteJack Clark
Confidence
1.00
02

AI tools are advancing rapidly, and there should be a way for the public to slow down technological advancement.

quoteJack Clark
Confidence
1.00
03

Claude Mythos 5 has been released to a limited group, with no limitations on cybersecurity or biology.

factualAnthropic
Confidence
0.90
04

Anthropic's private valuation has neared $1tn.

statisticarticle
Confidence
0.90
05

Groups using Mythos have reported finding over 10,000 critical security flaws.

statisticAnthropic
Confidence
0.80
§ 04

Full report

1 min read · 248 words
Anthropic is expected to become a public company soon, as its private valuation has neared $1tn (£747bn). Consistently showing better and broader AI capabilities underlines its value to investors. The company also said on Tuesday said that the roughly 150 groups that had been given access to preview Mythos will now have access to Mythos-5" class="entity-link entity-topic" data-entity-id="143303" data-entity-type="topic">Claude Mythos 5, which does not have limitations on cybersecurity or biology, depending on an organization's specific uses.To-date, groups and companies using Mythos have reported to Anthropic finding more than 10,000 critical security flaws in their systems. Anthropic said the updated access was limited to a "small group of cyberdefenders and infrastructure providers" but is expected to go beyond that soon."We intend to expand access to Mythos 5 through a broader trusted access program", the company said.Both Fable and Mythos, which are essentially the same model but with different safeguards and levels of access in place, can work "unattended" on human commands that the tools are given for longer periods of time "than any previous Claude models." Anthropic added.Anthropic co-founder Jack Clark last week told BBC Newsnight that the ability of AI tools was expanding so rapidly that the company thought there should be a way for the public to slow the technology's advancement."You want the option to be able to take your foot off the gas and put your foot on the brake", Clark said. "Right now, it's like the AI industry has a gas pedal, but it doesn't have a brake pedal."
§ 05

Entities

8 identified
§ 06

Keywords & salience

10 terms
ai capabilities
1.00
ai safety
0.90
anthropic
0.80
claude mythos 5
0.70
ai advancement
0.70
cybersecurity
0.60
ai regulation
0.50
public access
0.50
trusted access program
0.40
ai models
0.40
§ 07

Topic connections

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