Anthropic’s secret ‘Mythos’ model

Good morning, { AI enthusiasts }. OpenAI had Q* and Strawberry. Now Anthropic has its own ‘accidental’ preview of what is coming next.

Details of ‘Claude Mythos’ leaked via a CMS error, describing a system in a brand new tier above Opus with cyber capabilities Anthropic says are ‘far ahead’ of anything available — in what looks like one other step up the frontier ladder.

In today’s AI rundown:

LATEST DEVELOPMENTS

The Rundown: Details of Anthropic’s next flagship AI, Claude Mythos, surfaced this week after the corporate’s CMS left launch materials in an unsecured data store, with the leaked blog calling it ‘a step change’ and Anthropic’s most capable system so far.

The small print:

Why it matters: A security-focused AI lab ‘by chance’ leaving its strongest model’s launch plans in a public data store has an identical vibe to OpenAI’s Q*-era leaks, where conveniently timed rumors doubled as free hype. Accidental or not, a brand new model tier above Opus feels like one other major next step up the frontier ladder.

The Rundown: Pinecone Assistant is an end-to-end knowledge service that handles the heavy lifting behind AI retrieval like chunking, embedding, search, and reranking, so that you haven’t got to construct and maintain your personal stack. Just upload your data and begin querying.

With the brand new Pinecone Assistant n8n node, you possibly can:

Start constructing without cost.

The Rundown: The Rundown Roundtable is a weekly feature where we poll members of The Rundown staff about how we use AI in our work and each day lives.

Nate, University Educator: I proceed to make use of Claude artifacts for every kind of visualizations. Recently, when purchasing acoustic panels for my ceiling, I wasn’t sure what number of to purchase or the fitting orientation to put in them in.

I had Claude create a mock-up of my room after which lay them out in numerous orientations and different patterns to optimize the fitting number, the fitting order, and the fitting method to install them. I made sure to buy the fitting amount, reduced waste and cuts, and was in a position to higher estimate costs when comparing different options.

I can see this being super useful any time I’m doing any form of home improvement project that features estimating materials, whether it’s tile, carpeting, or any form of paneling across an area.

Shubham, Editor: Claude created my portfolio website right away. I prompted it with my links (LinkedIn and social), described what I wanted, and it built the whole thing in a single sitting — design, deployment, DNS config, website positioning, and Google indexing included. I made a handful of edits across the session, and it handled each one without friction.

When things broke during deployment, it debugged in real time and stuck them via desktop extension browser control. Zero code written by me.​​​​​​​​​​​​​​​​

The Rundown: On this guide, you’ll learn the way to get repeatable “skill”-style workflows to work with ChatGPT. The concept is to make use of Codex Desktop as a skills playground, create a reusable skill there, after which run it on demand.

Step-by-step:

Pro tip: Type /skill creator to be certain Codex creates it the identical way every time. You can even specify whether you would like it to be a world skill or a skill only for this folder.

The Rundown: 378 prompts across CRM, ERP, project management, and data warehouse platforms. Most MCP servers were accurate 60-75% of the time, silently dropping date filters, multi-condition queries half-applied, and write operations failing validation. But CData’s Connect AI achieved 98.5% accuracy.

CData’s report covers:

Download the complete benchmark report.

The Rundown: The WSJ just laid out the private grudges, power struggles, and broken guarantees between Sam Altman and Dario Amodei that trace back to an SF group house in 2016, with the fallout shaping the rivalry between the 2 AI leaders.

The small print:

Why it matters: Kudos to the WSJ for these nuggets that paint a much deeper picture of the decade-long drama between Amodei and Altman. The grudges are entertaining, but they’re also steering the trajectory of two of a very powerful AI corporations — with impacts that ripple through way more than simply a private rivalry.

QUICK HITS

Sam Altman reportedly told OAI staff he tried to “save” Anthropic during its Pentagon standoff, per Slack messages seen by Axios — at the same time as OpenAI locked in its own deal.

xAI’s Ross Nordeen reportedly departed the corporate this week, who was the last remaining of the unique 11 co-founders on the startup besides Elon Musk.

Pharma giant Eli Lilly entered a $2.75B cope with Hong Kong’s Insilico Medicine to license its AI-discovered drug pipeline, with 28 compounds already in development.

Anthropic won a federal injunction blocking the Trump administration’s supply-chain-risk designation, with the judge calling it “classic illegal First Amendment retaliation.”

Google expanded the rollout of its Live Translate feature to iOS, turning any pair of headphones right into a real-time interpreter across 70+ languages.

COMMUNITY

Every newsletter, we showcase how a reader is using AI to work smarter, save time, or make life easier.

Today’s workflow comes from reader David B. in Wichita, KS:

“My dad passed away in February, abandoning a big box of handwritten letters from the 50’s & 60’s. I photographed them with my phone and fed the pictures in bulk to Claude Code — it read the cursive, transcribed the whole lot, and helped me construct a family history website with the unique photos alongside each transcription.

Something that may have stayed in a box is now a family archive grandkids can actually explore.”

How do you employ AI? Tell us here.

See you soon,