Anthropic Claude

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Claude Opus 4.8 system prompt leaked

 ✍️Prompt Engineering

Pliny the Liberator 🐉󠅫󠄼󠄿󠅆󠄵󠄐󠅀󠄼󠄹󠄾󠅉󠅭 (@elder_plinius)

 ✍️Prompt Engineering
xcancel.com··Hacker News

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

 🤝AI Agents

Claude Fable 5 “Feels Next Level” via @sejournal, @martinibuster

 🪟Context Windows

Claude Fable 5 is generally available for GitHub Copilot - GitHub Changelog

 🤝AI Agents  Content type: Blog  Content type: Tutorial
github.blog··Hacker News

Microsoft restricts Claude Fable for employees over data retention concerns

 ⚖️AI Policy  Content type: News

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

 🤝AI Agents  Content type: News

Anthropic warns Claude AI is building itself faster than expected, calls for option to halt frontier development — 'recursive self improvement' increases risk humans lose control of AI

 🤝AI Agents  Content type: News

Comparing Claude Fable 5's system prompt to Opus 4.8

 ✍️Prompt Engineering  Content type: Blog

Claude Fable 5 and new AI safety fables

 🤖LLM  Content type: News
interconnects.ai··Hacker News

teia-igo-vs-claude-opus-4.8/README.en.md at main · joseteiadirector/teia-igo-vs-claude-opus-4.8

 🤖LLM  Content type: Code
github.com··Hacker News

Anthropic says these topics are too dangerous to let its Fable 5 model talk about

 ⚖️AI Policy  Content type: News
arstechnica.com·

AI Video Generation Benchmark: 11 LLMs Compared

 🤖LLM
mesmer.tools··Hacker News

A free diagnostic for the Claude Certified Architect exam

 🤖LLM  Content type: Discussion  Content type: Tutorial

keyuchen21/agentic-engineering-handbook: The definitive OpenAI, Claude, MCP, Harness, Evals, and Production Agent Systems learning roadmap.

 🔌MCP  Content type: Code
github.com··Hacker News

I Tested Claude Fable 5 Against Private Benchmarks It Has Never Seen, Here Is Where It Failed

 Generative Art
alikhallad.com··Hacker News

[!!!] Claude Fable 5 by Anthropic, releasing tomorrow

 Generative Art  Content type: Discussion

If Claude Fable stops helping you, you'll never know

 🤖LLM  Content type: Blog
jonready.com··Lobsters, Hacker News

Anthropic releases ‘safe’ version of Claude Mythos AI model to public

 ⚖️AI Policy  Content type: News
theguardian.com··Hacker News

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