New York NY
Joined June 2009
Sam Σ Petulla retweeted
Fantastic conversation - Joe asks tough questions! Did we answer them well? I think this might be the first appearance of @the_marwell in public - he is a complete legend within Anthropic, an unbelievable amount of critical programs simply would not have progressed without him. Getting to know him via this podcast is crucial lore.
Some of my friends will be mad I recorded this, and comms people at Anthropic objected to releasing certain parts (and delayed it). But it's important for leaders to make these conversations happen. And I have a lot of respect for these two. Over a month ago, I sat down with Anthropic's key technical leaders @_sholtodouglas & @the_marwell for an optimistic insiders’ view of the AI frontier, with hard questions too: open source, regulatory capture, slowing down USA vs China, and more.
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Sam Σ Petulla retweeted
Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family. It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.
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Sam Σ Petulla retweeted
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: darioamodei.com/post/we-must…
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Sam Σ Petulla retweeted
I talk to engineers at other companies every day and hear the same thing: one person is 10x'ing their output with Claude but the rest of the org hasn't caught up. Watching teams adopt AI, I keep seeing the same 4 steps. I mapped them out here: Steps of AI Adoption claude.ai/code/artifact/bfdf…
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Sam Σ Petulla retweeted
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.
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Sam Σ Petulla retweeted
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.
Introducing Claude Tag, a new way for teams to work with Claude. In Slack, Claude joins as a team member with access to the channels and tools you choose. Tag Claude in and delegate tasks to it while you focus on other work.
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Sam Σ Petulla retweeted
This has completely changed how I work with Claude. It feels less like using a tool and more like managing a team.
Introducing Claude Tag, a new way for teams to work with Claude. In Slack, Claude joins as a team member with access to the channels and tools you choose. Tag Claude in and delegate tasks to it while you focus on other work.
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Sam Σ Petulla retweeted
A bit of news: After nearly 9 years, I have decided to leave Google DeepMind and join Anthropic (after taking some time to recharge). I am incredibly grateful for my time at GDM. @demishassabis took a real chance letting me lead the AlphaFold team just six months after finishing my PhD, and the entire GDM team taught me so much about how to do great science. GDM is a special place, and I’ll still be excited to hear about what amazing things they discover next.
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Sam Σ Petulla retweeted
Claude Fable 5 by @AnthropicAI leads by the widest margins over other top models like Opus-4.8 and GPT-5.5 on two key signals: confirmed task success rate and praise vs. complaint.
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Sam Σ Petulla retweeted
Introducing Claude Fable 5: a Mythos-class model that we’ve made safe for general use. Its capabilities exceed those of any model we’ve ever made generally available.
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Gemini
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Sam Σ Petulla retweeted
I finally finished listening the Sutton podcast everyone is talking about, and one thing you can tell apart is real scholarship vs. “vibe scholarship”. The more you spend time with real scholars, the more your disdain for the latter. Which is why I feel allergic to influencers.
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strange object spotted under the microscope over the weekend in the lab...
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Sam Σ Petulla retweeted
read the first letter of every name in the gemini contributors list
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Sam Σ Petulla retweeted
Gemini 2.5 Pro is taking off 🚀🚀🚀 The team is sprinting, TPUs are running hot, and we want to get our most intelligent model into more people’s hands asap. Which is why we decided to roll out Gemini 2.5 Pro (experimental) to all Gemini users, beginning today. Try it at no cost at gemini.google.com
📣 Today, we’re introducing Gemini 2.5, our most intelligent AI model. An experimental version of Gemini 2.5 Pro is available now in the Gemini app for Gemini Advanced users: gemini.google.com/app Let’s get into this update ⬇️🧵
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Introducing Gemini 2.5 Pro, the world's most powerful model, with unified reasoning capabilities + all the things you love about Gemini (long context, tools, etc) Available as experimental and for free right now in Google AI Studio + API, with pricing coming very soon!
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The model sometimes enters a self-critique loop by itself, but you can trigger this manually, and the model tunes the prompt for itself through self-conversation. [Add e.g., "Verify the image, if it's incorrect, write your own prompt, try again, and repeat the process." ]
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🤔
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Welcome to the world, Gemini 2.0 ✨ our most capable AI model yet. We're first releasing an experimental version of 2.0 Flash ⚡ It has better performance, new multimodal output, @Google tool use - and paves the way for new agentic experiences. 🧵 goo.gle/gemini-2
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Our experimental version of Gemini 1.5 Pro in AI Studio debuted at #1 on the LMSys leaderboard. 1300 ELO, nice round number 🔥 With the Gemini team, we are focused on both improving our models by iterating and finessing our recipe (deep learning FTW!), and also on massive bets that could yield big quality jumps. If you have what it takes, join us! boards.greenhouse.io/deepmin…
Exciting News from Chatbot Arena! @GoogleDeepMind's new Gemini 1.5 Pro (Experimental 0801) has been tested in Arena for the past week, gathering over 12K community votes. For the first time, Google Gemini has claimed the #1 spot, surpassing GPT-4o/Claude-3.5 with an impressive score of 1300 (!), and also achieving #1 on our Vision Leaderboard. Gemini 1.5 Pro (0801) excels in multi-lingual tasks and delivers robust performance in technical areas like Math, Hard Prompts, and Coding. Huge congrats to @GoogleDeepMind on this remarkable milestone! Gemini (0801) Category Rankings: - Overall: #1 - Math: #1-3 - Instruction-Following: #1-2 - Coding: #3-5 - Hard Prompts (English): #2-5 Come try the model and let us know your feedback! More analysis below👇
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