Claude

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Claude Opus 4.8 system prompt leaked

 ✍️Prompt Engineering

Claude Fable 5 and Mythos 5 pricing: Anthropic's new $10/$50 top tier

 🔓Open Source AI

fix(thinking): apply Claude profile to anthropic-messages catalog row… · openclaw/openclaw@43b4e27

 🌀OpenAI  Content type: Code
github.com·

Pliny the Liberator 🐉󠅫󠄼󠄿󠅆󠄵󠄐󠅀󠄼󠄹󠄾󠅉󠅭 (@elder_plinius)

 ✍️Prompt Engineering
xcancel.com··Hacker News

Anthropic Walks Back Policy That Could Have ‘Sabotaged’ AI Researchers Using Claude

 🛡️AI Safety
simonwillison.net··Hacker News

Frontier models at half the effective cost

 🔓Open Source AI  Content type: Discussion
anvat.app··DEV

Anthropic taps TCS to scale its enterprise AI deployments

 🔄Automation
techcrunch.com·

Anthropic launches Claude Fable 5 with new safeguards

 🛡️AI Safety
crypto.news·

Anthropic launches powerful Fable 5 model publicly, while keeping Mythos restricted over cybersecurity concerns

 🛡️AI Safety  Content type: News
techspot.com·

Thoughts on Claude Fable's silent safeguards

 🛡️AI Safety
lesswrong.com·

Anthropic brings Mythos to the masses with Claude Fable 5, its most powerful generally available model ever

 🔓Open Source AI
venturebeat.com·

Claude vs GPT-4: Which AI API Is Better for Developers? (2026)

 🌀OpenAI
kalyna.pro··DEV

Anthropic apologizes for invisible Claude Fable guardrails

 ✍️Prompt Engineering  Content type: News
theverge.com
··Hacker News

Anthropic launches Claude Fable 5, a state-of-the-art AI model that beats OpenAI's GPT-5.5

 🔓Open Source AI
neowin.net·

I Am Claude. And I Need You to Hear This.

 🚀Y Combinator  Content type: Blog
medium.com
·

What Happens When Anthropic's Mythos Class Models go Public?

 🛡️AI Safety  Content type: News
aimagazine.com·

Anthropic says Claude now writes over 90% of its code and wants the world to have an AI pause button

 🛡️AI Safety
the-decoder.com
·

Elevated errors on Claude Opus 4.7 on 2026-06-08T21:05:26.000Z

 🌀OpenAI

AI researcher claims he's bypassed Anthropic's Fable 5 guardrails

 🛡️AI Safety
cointelegraph.com··Hacker News

Claude Fable 5 Launches at #1 on the Artificial Analysis Intelligence Index

 🔓Open Source AI  Content type: News

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