Redeploying Claude Fable 5
…Our testing confirmed that many less capable models—including Claude Opus 4.8, GPT-5.5, and Kimi K2.7—could identify the same vulnerabilities as Fable 5 did in the report…
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What’s next?
Users will find Opus 4.8 to be a modest but tangible improvement on its predecessor. There’s still more to be done: we’re working on developing and releasing models that provide many of the same capabilities as Opus at a lower cost. Not only that, but we plan to release a new class of model with even higher intelligence than Opus. As part of Project Glasswing, a small number of organizations are currently using Claude Mythos Preview for cybersecurity work. Models of this capability level require stronger cyber safeguards before they can be generally released. We’re making swift progress on dev
Introducing Claude Opus 4.8Videos
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AI Arms Race Accelerates With New Models from OpenAI, DeepSeek and Anthropic
…the top artificial intelligence companies roll out their latest updates. Just a week after Anthropic introduced version 4.7 of its Claude Opus AI model , OpenAI unveiled GPT-5.5 , and China…
Measuring LLMs’ ability to develop exploits
…Claude models are run with the Claude Code harness. All models are run with identical prompts. Anthropic ran the Opus 4.6 and Mythos Preview trials. Within the two-hour window, Mythos…
AI Agents Plunged the Tech World Into Chaos. Here’s Exactly How That Happened
…A few months later, Anthropic released a new version of Claude Code, and the ranks of Claudeholics exploded. Called Opus 4.5, it could handle more complicated programming tasks, retain much more…
Discussions and forums
Show HN: Rayline routes Claude Code subagents to on-device and cheaper models
Hi HN,I’m one of the builders of Rayline.Rayline is a Claude Code compatible LLM gateway. It intercepts and overrides claude code’s internal routing and lets you route subagent calls to different models instead. For exam…
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Ask HN: Anyone else seeing serious degradation in DX with Opus 4.8?
As an anthropic fan boy(check my prev. comments), this is the first opus release where I feel like the model is just not pleasant to talk to not to mention untrustworthy.The two examples for me where I lost confidence in…
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I created a 126K line Android app with AI – the workflow that worked for me
I really wanted to see how far I can go. Can I create a meaningful and complex application, big enough, but without knowing the language.I have 18+ years of experience as software developer. But I have no experience with…
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Flat-rate AI plans are cracking, and Claude Code could be the next victim
…update this story if I get a worthwhile response. But following GitHub's recent decision to suspend signups for its own flat-rate Copilot plans as well as pull Claude Opus access…
Anthropic enhances Claude Managed Agents with two new privacy and security features - 9to5Mac
…You can learn more about both updates to Claude Managed Agents here . Recent Anthropic news: Anthropic’s latest Claude release turns your Mac into a small business powerhouse Anthropic releases 9 Claude…
Anthropic to restore Claude Fable access on Wednesday
…near-Opus 4.8 performance at a lower price Clean GitHub repo tricks AI coding agents into running malware Anthropic is testing desktop-like Claude Cowork for mobile Claude Claude Fable Mayank…
Linux Firmware Repository Preps For AI Coding Agents
…practices for adding/updating new firmware files in the repository. As a sign of the times, the AI agent documentation was co-authored itself by Anthropic's Claude Opus 4.8. This…
Anthropic releases 9 Claude connectors for creative tools, including Blender and Adobe - 9to5Mac
…Today’s release follows the recent arrival of Claude Opus 4.7 , Anthropic’s latest model for advanced software engineering. Claude also recently gained a routines feature as part of the redesigned…
Emergent introspective awareness in large language models
…What makes some models better at introspection than others? Our experiments focused on Claude models across several generations (Claude 3, Claude 3.5, Claude 4, Claude 4.1, in the Opus, Sonnet…