Aubrey Morgan

Leading Startups & Tech Marketing @ Anthropic | Views are my own ✌🏼

[Aubrey Morgan @aubreydmorgan]

@Techweek_ @AnthropicAI Nooo. Come back tomorrow?? :)

[Ana Belén @anabelen_gf]

this is your sign to start something new

[Aubrey Morgan @aubreydmorgan]

@runable_hq @claudeai @Lovable @meetgranola @ElevenLabs @GammaApp We love it!!

[Sarah Wolf @sarahzorah]

Really excited to share what I've been working on since I started at Anthropic. It's been an incredible team effort to bring this to life.

There's never been both a better and harder time to be a founder. So we asked founders what would help most. We heard three things: 1) tokens to build with 2) time with our team, and 3) support and connection while they get started.

Here's what's in the expanded Claude Startups program:
1. A free year of Claude Team to build your next idea
2. $1,000 in API credits
3. Up to $45K in offers from companies building with Claude (@linear, @Lovable , @ElevenLabs, @meetgranola, @hexanalytics and more)
4. Office hours with our Applied AI team

[Claude @claudeai]

Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family.

It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most work.

[Sarah Wolf @sarahzorah]

Excited to share that we're hosting Claude Founder House during SF Tech Week.

Come hang at the Founder House café and coworking space, and meet other founders and the Anthropic team. It's open all day, with talks, workshops, and Applied AI office hours running throughout.

Plus: a Women in Startups brunch, Claude Run Club, and a Founder Salon with live demos to close out the week.

More info + apply to attend below!

[Dan Shipper @danshipper]

BREAKING:

Anthropic just dropped Opus 5.5—and it’s pulling some of our recent Codex converts back to Claude.

We’ve been testing it at @every across coding, design, writing, and knowledge work. It sometimes beats Fable 5.1 in our testing and is up to 40% cheaper than Opus 5.

It's a strong contender for new daily driver model:

It’s excellent at end-to-end builds that match your taste. I’ve started reaching for Opus over Fable on big, end-to-end coding projects. And @kieranklaassen is replacing Fable 5.1 with Opus for his day-to-day product work. He calls it his new favorite model.

It produces legible prose, but still trails Astra on writing tasks. Opus 5.5 scores a 68.42 on reading ease—the highest on any model we've tested. But in my writing benchmark tests it consistently buries the main point in intro paragraphs, and revisions. You'll be able to understand what this model is saying (yay!) but for day-to-day writing it's still behind.

The economics are striking. Anthropic says Opus 5.5 will cost $5 per million input tokens and $20 per million output tokens. That’s the same input price and 20% less for output than Opus 5’s $5/$25. Altogether it should save roughly 40% on costs than Opus 5.

It still has a “do the most” problem. @hammermt tested it on our standard knowledge work benchmarks, and it's results were great when thye came back. On at least one test it ran past the 10 minute time limit before delivering.

Net Result:
If you build apps and interfaces, try it. It’s become my go-to for ambitious coding projects. I’m still roughly 80/20 Codex versus Claude in day-to-day use, and I still prefer Sol and Astra for editing. But I’m spending far more of my tokens with Claude than I was a week ago.

State of Play:
Codex is still the better harness for me, but Anthropic is steadily gaining ground. They have a history of making their smaller models perform better than their bigger ones (Sonnet 3.7 for example) and they seem to have done the same with Opus 5.5.

Full vibe check will be on @every soon!

[ClaudeDevs @ClaudeDevs]

Try these in your first Opus 5.5 session:

→ Hand over a whole task. Define "done" and when to check in.
→ Drop "think carefully". It always thinks first.
→ After a long run, check what it needs to go further.

Our playbook: https://t.co/h4Vz9BIl0z

[Salesforce @salesforce]

Live: @DarioAmodei x @Benioff

The @AnthropicAI co-founder & CEO joins us at @Dreamforce for a conversation worth hearing ☁️

[Barack Obama @BarackObama]

I was encouraged this week to see the leaders of the frontier labs agree on the need for them to slow down the pace of AI development. Given the stakes, it’s a good and necessary first step.

But I’m even more encouraged by the growing recognition that how this powerful new technology develops should be at the center of our public debate.

I’ve been watching the progress on AI for over a decade now, and one thing that’s clear to me is that the potential impact of this technology is not overhyped. It’s also moving at lightning speed – and even faster than those who are engineering it can keep up with.

I’m not an AI accelerationist who believes it will lead to some techno-utopia, and I’m not a doomer who thinks it will inevitably lead to humanity’s destruction.

But whether this technology results in amazing breakthroughs in medicine, energy and education or unleashes huge economic disruptions, greater inequality, and potential catastrophe will depend on the choices that we make right now – choices that should be made not just by the companies involved, but by all of us.

[Dario Amodei @DarioAmodei]

We Must Pace the Frontier: I’ve written a new essay on why the AI industry should slow down, with a three-part plan for doing so.

Anthropic is unilaterally committing to the first of these steps. We’ll provide third-party evaluators with permanent, employee-level access to our systems, so that they can verify adherence to our safety measures, report on incidents, and assess models’ alignment during training.

You can read the full post here: https://t.co/OGyPb7yaYt

[Anthropic @AnthropicAI]

Today, we're kicking off the first phase of the research preview for Model Hardware Standard (MHS): a new standard for AI agents to safely operate physical equipment in scientific research and advanced manufacturing.

Read more: https://t.co/XQ2y9EW7Af

[Marc Benioff @Benioff]

Claudeforce is here. ⚡️ The #1 AI (Claude) now runs natively on the #1 CRM (Salesforce). Through the new AIforce harness + Headless 360, Claude gets direct, governed access to Data 360, Tableau, Slack, and your entire Salesforce workflow—without ever leaving the chat.
What this changes today:
• Instant Grounded Intelligence — Ask complex enterprise questions and get real-time, trusted answers
• App & Agent Builder — Deploy custom workflows, agents, and secure apps on the fly
• Action-Oriented — Trigger live enterprise actions and get work done, not just summaries
• Ironclad Governance — Zero Data Retention, full trust boundary, Salesforce-certified by default
Probabilistic models alone can’t run a company. Deterministic systems alone can’t reason. Claudeforce fuses Claude’s reasoning with Salesforce’s trusted data and controls. The AI is the interface.
This is how every business will run.
See it at Dreamforce. #DF26

[cat @_catwu]

We'd love to talk with Cowork users in Corporate Finance and Accounting roles!

Have ideas on how we can improve? Sign up for a screen share with our team here: https://t.co/KjF5bGFX1x

[Aubrey Morgan @aubreydmorgan]

@AvitalBalwit absolutely STUNNING

[Claude @claudeai]

Introducing Claude Opus 5.

It's a thoughtful and proactive model that comes close to the frontier intelligence of Fable 5 at half the price.

[Andy Fang @andyfang]

Today we're opening up the DoorDash CLI in limited beta.

`dd-cli` lets you order DoorDash directly from your agent: search stores, find the best deals, check out, and more.

Early access for US/Canadian macOS developers by waitlist. Excited to see what folks build!

[Anthropic @AnthropicAI]

We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5.

We'll begin restoring access tomorrow, and will share an update soon.

We’re grateful to our users for their patience, and to everyone who worked with us on redeploying the models.

[Andrej Karpathy @karpathy]

This is a new paradigm for interacting with Claude that is significantly more "inline" with all the other human activity org-wide. Once you do all of the under the hood engineering work to make this "just work" (e.g. across tools, integrations, compute environments, memory, security, etc.), Claude basically joins the team in a seamless way - you can talk to it as you would talk to a person and it can help with a very large variety of workloads.

Imo this is the 3rd major redesign of LLM UIUX. The first paradigm was that the LLM is a website you go to, the second was that it is an app you download to your computer. This third one is that it is a self-contained, persistent, asynchronous entity with org-wide tools and context, working alongside teams of humans. It really takes a while to wrap your head around it, but it works and it is awesome.