Ramone Hamilton

[Alex Finn @AlexFinn]

I was wrong. I said Opus 5 would be as good as Fable 5.

It’s somehow even better. And oh yeah, it’s half the price

Opus 5 beats Fable 5 on almost every single benchmark and is significantly more cost efficient. Plus you can use your FULL limits on it

Fable 5 is basically dead

No point in using it anymore. And I don’t even necessarily think that’s a bad thing for Anthropic

Fable 5 was the first consumer version of a Mythos level model. It was bound to be rough and inefficient.

If you remember when GPT Pro came out for the first time, it was absurdly priced and every prompt took 30 minutes to get a response

Now it’s economical and quick

Same thing will happen with Fable.

Fable 5.1 will come out in the next month and be much more economical, more efficient, and smarter than Opus

It’s a great day to be obsessed with technology.

Would highly recommend making this your default in Claude Code and use it for basically all tasks including planning and execution

[Claude Code Changelog @ClaudeCodeLog]

Claude Code 2.1.211 has been released.

37 CLI changes

Highlights:
• Added flag/env to include subagent text/thinking in stream-json, so downstream systems receive subagent output
• Permission previews neutralize bidi, zero-width, and look-alike quotes to prevent visual spoofing of approvals
• Auto mode stops overriding a PreToolUse hook's ask for unsandboxed Bash, so ask now forces a prompt

Full details available in thread ↓

[Ramone Hamilton @RamoneDHamilton]

Check out HBO Max's video! #TikTok https://t.co/peosKfxnwX

[Boris Cherny @bcherny]

As engineering, product, design, DS, etc. melt into a new kind of role, I was reflecting on what roles might look like in the future. For example, when I look at the Claude Code team I see what I think is five archetypes:

1. Prototyper: comes up with brand new ideas; churns out many ideas, most of which don't ship
2. Builder: quickly turns a prototype/idea into production-grade product/infra
3. Sweeper: cleans up the UI, simplifies the code and system, unships, optimizes performance
4. Grower: takes a product that has been built and iterates on it to improve Product-Market Fit
5. Maintainer: owns a mature system to make it secure, reliable, fast, and efficient as it scales

Many people span across 2 roles, and sometimes 3 roles. I also notice that these roles are not really tied to job function -- eg. across Anthropic, some designers match category 1, some 2, some 3; same for engineers, PM, DS.

A healthy team needs a mix of these, depending on the product:

- A product that is new and pre-PMF needs people that are strong at 1+2+3
- A product that is growing and has found PMF needs 2+3+4 and some 5
- A product that has strong PMF needs 3+4+5 and some 2

Maybe product roles of the future will look more like this, and less like the domain-specific roles of today?

[International Cyber Digest @IntCyberDigest]

‼️🚨 BREAKING: Amazon researchers snitched to the US government about jailbreaking Fable 5 and Mythos 5, forcing Anthropic to immediately shut down worldwide access.

A security export control directive from Commerce Secretary Howard Lutnick enforced the action.

Anthropic is fighting the directive and calls it a misunderstanding.

This isn't the first clash. The Trump administration had already tried to get Anthropic to pause the release of its latest models before this directive landed.

[Boris Cherny @bcherny]

Enjoy!

[Claude @claudeai]

Introducing Claude Opus 4.8: it builds on Opus 4.7 with sharper judgment, more honesty about its own progress, and the ability to work independently for longer than its predecessors.

Available today at the same price.

[ClaudeDevs @ClaudeDevs]

We’ve shipped a security-guidance plugin for Claude Code that helps identify and fix vulnerabilities as you’re writing code.

Available for all Claude Code users. Install from the plugin marketplace (/plugins).

[🚨 AI News | TestingCatalog @testingcatalog]

ANTHROPIC 🔥: Mythos 1, "claude-mythos-1-preview", is being prepared for a release on Claude Code and Claude Security.

The model became visible for a short amount of time on Claude; besides that, new strings mentioning Mythos have been added.

> Access to the Claude Mythos model in Claude Code and Claude Security.

It still doesn't mean the general public will have access to this exact model, according to Anthropic's earlier communication.

More below 👇

[Claude Code Changelog @ClaudeCodeLog]

Claude Code 2.1.146 has been released.

16 CLI changes

Highlights:
• Renamed /simplify to /code-review; adds optional effort levels like '/code-review high' to adjust review depth
• Auto mode preserves AskUserQuestion when a user or skill depends on it, so required prompts are shown
• Backgrounded sessions stop re-prompting for tools marked 'don't ask again', retaining those permissions

Complete details in thread ↓

[GitHub @github]

1/ We are sharing additional details regarding our investigation into unauthorized access to GitHub's internal repositories.

Yesterday we detected and contained a compromise of an employee device involving a poisoned VS Code extension. We removed the malicious extension version, isolated the endpoint, and began incident response immediately.

[Ramone Hamilton @RamoneDHamilton]

@tuckerlindgren It wouldn’t be funny if it wasn’t true. 😂😂

[Ramone Hamilton @RamoneDHamilton]

https://t.co/kuO6TWrILK

[Ramone Hamilton @RamoneDHamilton]

The creator of Claude Code tells you how to use it effectively. All for free!

[Andrej Karpathy @karpathy]

Personal update: I've joined Anthropic. I think the next few years at the frontier of LLMs will be especially formative. I am very excited to join the team here and get back to R&D. I remain deeply passionate about education and plan to resume my work on it in time.

[🍓🍓🍓 @iruletheworldmo]

sonnet 5, gpt 5.6, gemini 3.5 all next week.

are you starting to feel the acceleration yet chat?

[Anthropic @AnthropicAI]

We've published a paper that explains our views on AI competition between the US and China.

The US and democratic allies hold the lead in frontier AI today. Read more on what it’ll take to keep that lead: https://t.co/TgJBeodWYK

[Braydon Coyer @BraydonCoyer]

You have my attention

https://t.co/B4NdQxj2x6

[React Miami @ReactMiamiConf]

Let's run it back!!

Tickets for React Miami 2027 officially on sale now!

Lock it in: https://t.co/lJYy8lyg6r

[Ramone Hamilton @RamoneDHamilton]

Just heard at @ReactMiamiConf from @BrooksLybrand that React Router 8 is coming out next month and Remix 3 will be available next week! 😍