整理 Anthropic 官方公告、Claude Blog 文章，以及團隊推文。每張卡片點開有繁中重寫、重點大綱與媒體展示。
@a16z 👋 Guessing you're looking at npm-only data. We switched to a native installer a few months back, so the majority of installs aren't captured here. Thursday was the second-highest Claude Code signup day we've ever had (15x growth since Jan 1). Ask Claude to debug your SQL?
@petergyang Interesting. Going to see if we can improve this UX to make it feel more responsive. Also we should add some debug logs to make it more self-serve to see what's causing hangs. Expect something soon.
@knowShubhangi @HowDevelop @vipulgupta2048 @nosajab @ClaudeDevs @claudeai 👏👏
@mitchellh congrats Mitchell!
@promptprincess Oh i like this
@kaiofreitas /loop until
@charlieholtz 🫡
@clairevo 👀 can’t wait for the episode
i dont disagree, the worst parts of this are when you create a report or deck which expands on your thought too much, adds a lot of AI writing, etc you can create on the fly editing experiences in HTML but it’s finicky more work to do here but i still think html is better directionally, people were just not reading the markdown files
@badlogicgames 🥹
@mattpocockuk curious to see what you do! i think your /prototype skill was in a similar vein i think you can really push the envelope with HTML in terms of prototyping interactions, flows, apps, etc. much more to do here
@antirez @badlogicgames like with most things LLM-related this is empirical and subjective, people can have different preferences but imo worth trying i was also skeptical initially tbh, tried things like MDX instead but kept coming back to HTML
@zeeg
@zeeg leaning into the unc
An early Claude Mythos Preview snapshot we provided METR has a time horizon of more than 2x the next best model on their 80% success rate benchmark
New Anthropic research: Teaching Claude why. Last year we reported that, under certain experimental conditions, Claude 4 would blackmail users. Since then, we’ve completely eliminated this behavior. How?
@meshtimes_ @ClaudeDevs @claudeai So glad you joined! Typewriter was my fav
We have a few extra stickers from Code with Claude! Grab some if you want
@fabianstelzer oh yum
That's a wrap on Code with Claude San Francisco! Clawd had an amazing time, and we hope you did too. Thanks to everyone who came out and everyone who tuned in 🧡
Last week we shipped 50+ Claude Code reliability fixes. This week it's 60+ more. Smoother long-running sessions, a more efficient agent loop, auth that works in more environments, and terminal fixes: 🧵
/radio
We're co-hosting a couple of hackathons in San Francisco next week. Come build with Claude 👇
Yeehaw!
@itsjulespark @claudeai @AnthropicAI scarborough mans to be specific
@makeHouses thank you for coming! tell us what they do with the Cardputer :)
@AdiGuruprasad @bcherny dude this one is so cute, I didnt even know we had that
@MolemanStudios @Newgrounds camera movement is so slick
https://t.co/MXt5XS4xBX
HTML is the new markdown. I've stopped writing markdown files for almost everything and switched to using Claude Code to generate HTML for me. This is why.
@untraceable_the @ Dario hope my bonus is in the mail
@MilksandMatcha @AnthropicAI had the idea for this article literally during the Q&A part of this :) https://t.co/1V3pRFQL5M
@simonw this is really cool, I think you can probably ask it to do like an interactive step through of the exploit with a simulated call stack or state machine as well to make it even more interactive
@jtaby we doing plans
With the help of Claude Mythos Preview, the Firefox team fixed more security bugs in April than in the past 15 months combined.
We’re sharing the research agenda of The Anthropic Institute, or TAI. TAI will focus on four areas: 1) Economic diffusion 2) Threats and resilience 3) AI systems in the wild 4) AI-driven R&D Read the full agenda:
New Anthropic research: Natural Language Autoencoders. Models like Claude talk in words but think in numbers. The numbers—called activations—encode Claude’s thoughts, but not in a language we can read. Here, we train Claude to translate its activations into human-readable text.
Our security bug bounty program is now public on HackerOne. We've run the program privately within the security research community, and their findings have strengthened our products. Now anyone can report vulnerabilities and get rewarded.
We’re donating Petri, our open-source alignment tool, to @meridianlabs_ai, so its development can continue independently. Working with Meridian Labs, we’ve also released a major update that improves the adaptability, realism, and depth of Petri’s tests.
@petergyang @AnthropicAI ✌️
@bedriyan0 @ClaudeDevs 🫶
@oliviazzzu Woah
Claude for Excel, PowerPoint, and Word are now generally available, and Claude for Outlook is in public beta. As Claude moves between your Microsoft apps, it carries the full context of your conversation.
@meshtimes_ @claudeai So cute! Thanks for joining us! 🧡
@joshdbirdwell @AnthropicAI Loved having you here, Josh! 🧡
This was a very special day. As always, grateful to be a part of this magic and build products that help you be a technical wiz, artist, designer, data analyst and more all rolled into one. Also my ~6 month Antiversary To six more months of making magic <3
@clairevo @ClaudeDevs Thanks for the Routines shoutout. Let me know how we can continue to make more powerful for you!
@raroque i was told you would crop out the tacos smh
"everyday we're trying to obtain more compute to pass on to you, we're sorry if it takes sometime but we're going to acquire as much as we can" you heard the man
@Magdoub thanks for coming, great to meet you!
@jdnichollsc thanks for coming! hope you enjoyed it
@CeciNowBe @claudeai thanks for coming! hope you enjoyed it
@MilksandMatcha @AnthropicAI thank you for having me! such a good convo
More chips, more Claude
I'll be at Code with Claude all day today so come find me and let's chat about Claude! I'll also be giving a talk on the main stage at 530pm PT so tune in, it will be on the livestream!
@wongmjane @ClaudeDevs Thanks for the feedback Jane. Working on it
See everyone tomorrow!!
Hello from Code with Claude!
It's been an amazing start to Code w/ Claude! Love hearing what people are building with Claude Code and getting feedback on what we can do better.
@jarredsumner getting mic’d up for live coding. See everyone in a few!
We’ve agreed to a partnership with @SpaceX that will substantially increase our compute capacity. This, along with our other recent compute deals, means that we’ve been able to increase our usage limits for Claude Code and the Claude API.
Live from Code with Claude: we're launching dreaming in Claude Managed Agents as a research preview. Outcomes, multiagent orchestration, and webhooks are now in public beta.
Join us at 1pm PT for a conversation with our co-founders Dario Amodei and Daniela Amodei, moderated by Chief Product Officer Ami Vora. https://t.co/InUxTaNimb
Code with Claude is happening now! ▪︎ 9:00AM - Keynote ▪︎ 10:30AM - What's new in Claude Code ▪︎ 11:15AM - Building on Claude at GitHub scale ▪︎ 12:00PM - Get to production faster with Managed Agents All times PT. https://t.co/O4oygkSr2G
Usage limits are up, effective today we're: 1) Doubling Claude Code's 5-hour limits for Pro, Max, Team and seat-based Enterprise plans 2) Removing peak hours limit reduction on Claude Code for Pro and Max plans 3) Substantially raising our API rate limits for Opus models
In Claude Managed Agents, we’ve added multiagent orchestration, an outcomes loop for rubric-driven self-improvement, dreaming for self-learning, & webhooks.
We love our community 🧡
Up next: ▪︎ 1:00PM - A conversation with our co-founders Dario Amodei and Daniela Amodei, moderated by Chief Product Officer Ami Vora ▪︎ 1:50PM - Watch how @bcherny and @jarredsumner build with Claude Code
Your rate limits are now out of this world!
@RhysSullivan being an indie dev is the best
@MATLAB 🤩
We're winding back our peak hours limit reduction and doubling 5 hour limits. Excited to partner with SpaceX to bring you more compute and we'll keep pushing to bring you the best coding agent in the world.
@xai @scaling01 @AnthropicAI 🫡
Claude in Space 🤞
@MikeEndale @claudeai @AnthropicAI @bcherny oh no, shared internally!
As AI takes on work humans can't fully check, a capable model could deliberately hold back—and we'd never know. New Anthropic Fellows research finds that such a model can be trained to near-full capability using a weaker model as supervisor.
New Anthropic Fellows research: Model Spec Midtraining (MSM). Standard alignment methods train AIs on examples of desired behavior. But this can fail to generalize to new situations. MSM addresses this by first teaching AIs how we would like them to generalize and why.
New for financial services: ready-to-run Claude agent templates for building pitches, conducting valuation reviews, closing the books at month-end, and more. Install them as plugins in Cowork and Claude Code, or use our cookbooks to run them in production as Managed Agents.
@jarredsumner @berenddeboer @LukeParkerDev but what did u spend more compute on
@zeeg 👀
See you all soon! We've got some fun announcements ahead. I'll also be doing a workshop on "how we Claude Code" with some workflows I'm excited to share. Don't worry if you're not there, everything will be recorded and uploaded.
Managing API keys is one of the top security concerns we hear from customers. Today we’re introducing keyless auth for Claude Platform: authenticate via browser with the CLI, or let workloads use their existing cloud identity (AWS, GCP, Azure, or any OIDC token provider).
Code with Claude, our developer conference, returns next week. Whether you're just getting started with Claude Code or you've been building for a while, there's a session for you. Register for the livestream: https://t.co/GJwOPMDLEC
Agent SDK 🤝 Your design system "The design system is generated in an autonomous run averaging 53 minutes. Then, any team member can prompt Bolt to produce on-brand prototypes, generating code that can go to production with minimal rework."
Claude Security is now in public beta, built into Claude Code on the web. Point it at a repo, get validated vulnerability findings, and fix them in the same place you're already writing code
How do people seek guidance from Claude? We looked at 1M conversations to understand what questions people ask, how Claude responds, and where it slips into sycophancy. We used what we found to improve how we trained Opus 4.7 and Mythos Preview.
Claude Security is now in public beta for Claude Enterprise customers. Claude scans your codebase for vulnerabilities, validates each finding to cut false positives, and suggests patches you can review and approve.
The Built with Opus 4.7 Claude Code hackathon is a wrap! Thank you to the 500 participants worldwide, and to @cerebral_valley for co-hosting. Here's how the winners combined multi-agent orchestration, persistent memory, MCP tools, sandboxed execution, and smart prompt design 🧵
In new Anthropic Fellows research, we discuss “introspection adapters": a tool that allows language models to self-report behaviors they've learned during training—including potential misalignment.
New on the Science Blog: We gave Claude 99 problems analyzing real biological data and compared its performance against an expert panel. On 23 problems, the experts were stumped. Our most recent models solved roughly 30% of those—and most of the rest.
Another Claude Code hackathon comes to an end. Thank you to everyone who spent a week building with Opus 4.7, and to @cerebral_valley for co-hosting. Introducing the winners:
Claude Code ships with a built-in skill for working with the Claude Platform. Useful for model migrations, using API features (e.g., prompt caching), or onboarding to newer APIs like Claude Managed Agents.
Claude now connects to the tools creative professionals already use. With the new Blender connector, you can debug a scene, build new tools, or batch-apply changes across every object, directly from Claude.
Claude Code can now send push notifications to your phone when a long task finishes or Claude needs your input. Walk away from the terminal, we'll let you know when it's done.
In the last four Claude Code CLI releases, we’ve shipped 50+ stability and performance fixes. Faster resume, stable auth, lower memory, fewer hangs: 🧵
New Anthropic research: Project Deal. We created a marketplace for employees in our San Francisco office, with one big twist. We tasked Claude with buying, selling and negotiating on our colleagues’ behalf.
新研究 Project Deal。我們在 SF 辦公室搞了個市集實驗，但有個轉折：讓 Claude 替同事們做買賣、議價。
We’ve refreshed Claude Code on the web and mobile. A few things that recently shipped 🧵
Claude Code 網頁版跟手機版更新了。最近上線的幾個重點。
Trigger Routines whenever a GitHub Issue is created. Great for auto-triage usecases. Get started at https://t.co/QIDgEAJrRG
@yoavtzfati @dmwlff yes please share feedback!
@delba_oliveira @AnthropicAI So excited to have you on the team! :D
Thanks @lennysan for a great conversation about how Claude Code maintains product velocity, how the product management role is shifting in the AI era, and the future of work!
We’ve been looking into recent reports around Claude Code quality issues, and just published a post-mortem on what we found.
@armstrong_k @ClaudeDevs Run /usage to see what's eating up your limits. Improving this over the coming days to give you more visibility into plugins, skills, and custom agents
Claude can now connect to more of the apps you use outside of work, including @Tripadvisor, @bookingcom, @resy, @Instacart, @Spotify, @audible_com, @AllTrails, @thumbtack, Intuit @turbotax, and more.
Memory on Claude Managed Agents is now in public beta. Your agents can now learn from every session, using an intelligence-optimized memory layer that balances performance with flexibility.
Managed Agents 的 Memory 進入 public beta。你的 agent 可以從每一次 session 學東西，記憶層在效能跟彈性之間找平衡。
Over the past month, some of you reported Claude Code's quality had slipped. We investigated, and published a post-mortem on the three issues we found. All are fixed in v2.1.116+ and we’ve reset usage limits for all subscribers.
Thanks to the entire Claude community for giving feedback and continuing to build with us. Read the full post-mortem here:
Memory on Claude Managed Agents is now in public beta on the Claude Platform, letting agents learn and improve across different sessions.
You can now /schedule one-time tasks from the CLI or the Routines UI via the Schedule -> Once Trigger. Use it to: * /schedule cleanup this feature flag in 1 week */schedule give me a launch report for my feature in 2 days
Last month, we published our look into what 81,000 people told us they want from AI. In new research, we’ve investigated the economic hopes and worries referenced in their responses.
Claude Code won a Webby! Thanks to all of our users and customers for the support and love, and for always giving us feedback so that we can continue making the product a little better every day.
@ReadySetBrian Hmm are you seeing this with Opus 4.7 on xhigh effort and the latest version of Claude Code?
Interactive charts and diagrams are now in Claude Cowork. Available in beta on all paid plans.
互動式圖表跟示意圖進到 Cowork 了。所有付費方案 beta 開放。
New in Claude Code: /ultrareview (research preview) runs a fleet of bug-hunting agents in the cloud. Findings land in the CLI or Desktop automatically. Run it before merging critical changes—auth, data migrations, etc. Pro and Max users get 3 free reviews through 5/5.
New blog: Building agents that reach production systems with MCP. When should agents use direct APIs vs CLIs vs MCP? Plus patterns for building MCP servers, context-efficient clients and pairing MCP with skills. https://t.co/Q4UrUVgVYB
@LifeClaw_AI Desktop now supports /remote-control
Session store adapters in Agent SDK are now live! We published example adapters in TS and Python for S3, Redis, and Postgres adapter shapes. You can now mirror transcripts to your own backend, so a session created on one host can be resumed on another.
@HaneeefShiraz We increased rate limits for all subscribers, so you shouldn’t feel the increased token consumption
@theo @benhylak I only use auto mode every day. What's missing/not working for you?
Claude Code in the terminal will now show recaps when you switch focus away from the session and then come back. This should help you stay more in flow while multi-clauding.
Caching is critical for customers to lower both costs and TTFT. We’re launching a new dashboard in Claude Developer Console to increase visibility and help customers optimize their usage. Check it out here: https://t.co/zgBJ4dHXyI
@sunnyworks @seconds_0 Would love to hear what's not working well so we can improve!
@petergyang We're taking a look!
@Jack_Raines Congrats man! Just ordered, very excited to read this
Jack's young money blog had a big impact on me when I was in college and navigating what I wanted to do post-grad. If you are in your teens/20s and trying to figure out how to think about life, this book will offer you some good ideas.
We're launching the Anthropic STEM Fellows Program. AI will accelerate progress in science and engineering. We're looking for experts across these fields to work alongside our research teams on specific projects over a few months. Learn more and apply:
We're expanding our collaboration with Amazon to secure up to 5 gigawatts of compute for training and deploying Claude. Capacity begins coming online this quarter, with nearly 1 gigawatt expected by the end of 2026.
跟 Amazon 的合作擴大：拿下最多 5 GW 算力給 Claude 訓練跟部署。本季就會陸續上線。
👋 Is there a specific issue you're hitting? If so, would you mind running /feedback and sharing the id here? That would be most helpful for debugging. There were a number of harness changes that may have caused this, all of which are fixed in the latest (last known issue was fixed in 2.1.116 today). We will be sharing more in a bit, and have also shared a few updated on X/Threads as we've been investigating. General tips: 1. Use Opus 4.7 + xhigh/max effort 2. Make sure you're using the latest version of Claude Code (currently 2.1.116)
In Cowork, Claude can now build live artifacts: dashboards and trackers connected to your apps and files. Open one any time and it refreshes with current data.
@iBrews Thanks let me know any feedback!
@sergey_moloman @bunjavascript auto == max. cleaned up this UI, going out in monday's release
A lot of bugs that folks may have hit yesterday when first trying Opus 4.7 are now fixed. Thanks for bearing with us🙏
Everyone with a vision can produce very high-quality designs now (with a lil help from Claude)
@nateparrott 🐐
@danshipper @claudeai thanks for having me on!
@petergyang Our services have been strained by rapid user growth. It’s mostly stuff like scaling up databases, dealing with more contention, etc. We’re continuing to work around the clock to scale everything up — thanks for bearing with us!
Introducing Claude Design by Anthropic Labs: make prototypes, slides, and one-pagers by talking to Claude. Powered by Claude Opus 4.7, our most capable vision model. Available in research preview on the Pro, Max, Team, and Enterprise plans, rolling out throughout the day.
Claude for Word is now available on Pro and Max plans to use alongside Opus 4.7: https://t.co/MJ89c4IuTt
The Claude Code hackathon is back for Opus 4.7. Join builders from around the world for a week with the Claude Code team in the room, with a prize pool of $100K in API credits. Apply by Sunday: https://t.co/5MCkMtP5ti
We’re adding more visibility into where your Claude Code usage goes. Run /usage to see a breakdown of what's driving it: parallel sessions, subagents, cache misses, long context, plus tips to optimize each.
Some of you ran into Opus 4.7 refusing normal code edits with "this might be malware" warnings. That was a bug on our side, not the model being cautious. Older builds applied a stale safety prompt that Opus 4.7 doesn't need. Run claude update or relaunch the app.
Our virtual hackathon is back! Join us for a week of building with Opus 4.7 alongside developers from around the world. The Claude Code team will be in the room all week, with a prize pool of $100K in API credits.
Starting in v2.1.113, the Claude Code npm package ships the native binary instead of the JavaScript build. Same install command, faster startup, and the CLI no longer needs Node.js at runtime. If you need the JS build, pin to an earlier version.
Opus 4.7 is live in Claude Code today! The model performs best if you treat it like an engineer you're delegating to, not a pair programmer you're guiding line by line. Here are three workflow shifts we recommend for this model 🧵
Excited to centralize our updates in one place!
Some of my favorite things in Opus 4.7: - Very good at async work and following instructions - Effort levels are far more predictable for token control (+ new xhigh level) - No more downscaling of high-res images - Noticeably more taste in UIs, slides, docs
5/ Configure your effort level Opus 4.7 uses adaptive thinking instead of thinking budgets. To tune the model to think more/less, we recommend tuning effort. Use lower effort for faster responses and lower token usage. Use higher effort for the most intelligence and capability. Personally, I use xhigh effort for most tasks, and max effort for the hardest tasks. Max applies to just your current session; other effort levels are sticky and persist for your next session also. /effort to set your effort level.
@AutomatorLab 🫶
@ariccio ikik rename going out tomorrow
@ClaudeDevs is now on X.
Introducing Claude Opus 4.7, our most capable Opus model yet. It handles long-running tasks with more rigor, follows instructions more precisely, and verifies its own outputs before reporting back. You can hand off your hardest work with less supervision.
Here’s what developers should know to get the most out of Opus 4.7:
We fixed a bug where rate limits on Claude subscriptions weren't properly adjusted for long context requests in Opus 4.7. We've reset 5-hour and weekly rate limits. Enjoy Opus 4.7!
To make it easier to migrate your workflows, we've updated the claude-api skill in Claude Code with Opus 4.7 support. Just say "migrate to Opus 4.7" and it updates model names, prompts, and effort settings for you.
from the 🐐 himself
Yet another intelligence leap!
@PrajwalTomar_ Thank you!! Let us know if you have feedback
We just launched Routines. We just launched Claude Opus 4.7. The real unlock is using them together. 4.7 was built for full-throttle agentic work, judgment under ambiguity, and self-verifying outputs. Perfect for routines that work in the background. https://t.co/QIDgEAJrRG
@tylerwince @trq212 @bcherny Tell me more - Routines currently are cloud-managed so dont have local filesystem access at the moment. What's your use case for cloud routines + file system changes?
Over the past few weeks, I’ve become a daily user of Claude Code on desktop. It’s the best way to kick off and manage multiple CC sessions across local and cloud in one place. You can also see git status, pin active sessions, and drag and drop layout to view multiple sessions at the same time! Let us know what you think :)
Research we co-authored on subliminal learning—how LLMs can pass on traits like preferences or misalignment through hidden signals in data—was published today in @Nature. Read the paper:
@toddsaunders Let us know if you have any feedback !
@petergyang Hey Peter - Dming to figure out what’s going wrong w Remote control!
@aakashgupta Let me know what you build with it!
@fahdananta Let me know any feedback you have <3
@coreyganim Let me know if you have any feedback!
@SebAaltonen We made this change like six months ago (back in November) due to enterprise customer demand for it. These pricing plans have been published on our site for months. Max plans are still the same
Awesome work from @tryoffdeal on their M&A agent with Claude Agent SDK. Incredible to see how they're automating every piece of the M&A process - from sourcing to diligence on the SDK. Some great nuggets on agents in here! Agents >>> Workflows
Automate the manual repetitive parts of your work with Routines! You can now kick off Claude Code on a schedule, from GH events, and from other APIs
New version of Claude Code in the desktop app dropped today with tons of new features and performance improvements. Between Cowork and Code, I've found I don't really need to open other apps (or even my terminal) to do most of my work now.
Our Long-Term Benefit Trust has appointed Vas Narasimhan to Anthropic's Board of Directors. Vas brings more than two decades of experience in medicine and global health, including as CEO of Novartis.
New Anthropic Fellows research: developing an Automated Alignment Researcher. We ran an experiment to learn whether Claude Opus 4.6 could accelerate research on a key alignment problem: using a weak AI model to supervise the training of a stronger one.
Now in research preview: routines in Claude Code. Configure a routine once (a prompt, a repo, and your connectors), and it can run on a schedule, from an API call, or in response to an event. Routines run on our web infrastructure, so you don't have to keep your laptop open.
We've redesigned Claude Code on desktop. You can now run multiple Claude sessions side by side from one window, with a new sidebar to manage them all.
Claude Code Routines are here! In addition to a schedule, you can now trigger templated agents via GitHub event or API – with our infra & your MCP+repos They've changed how we do docs, backlog maintenance and more internally at Anthropic Get started at https://t.co/QIDgEAJrRG
@dedene Which ones are you thinking about?
@Rasmic Routines also have API and webhook!
@30Thrd Too much fun
Been incredible watching this labor of love from a incredibly talented, kind, and thoughtful human being. He's channeled weeks of feedback into an amazing redesign of the Claude Desktop app!
The new desktop app is incredible. The best part - you can touch grass! /remote-control
@pavelhegler Thank @alistaiir
Really cool use case of Claude Agent SDK
Claude for Word is now in beta. Draft, edit, and revise documents directly from the sidebar. Claude preserves your formatting, and edits appear as tracked changes. Available on Team and Enterprise plans.
@john_swanson_88 Thank @alistaiir
Claude now supports dynamic looping. If you run /loop without passing an interval, Claude will dynamically schedule the next tick based on your task. It also may directly use the Monitor tool to bypass polling altogether /loop check CI on my PR
We made setting up Claude Code with Bedrock and Vertex much faster!
@morganlunt congrats on the ship!
Allowing Sonnet to "phone a friend" (i.e. call Opus) increases performance while also reducing total cost since it reduces tokens spent trying to solve more complex tasks
Claude Cowork is now generally available to all paid plans. For Enterprise, we are adding role-based access controls, group spend limits, usage analytics, and expanded OpenTelemetry to give admins what they need to deploy it across the org.
We're bringing the advisor strategy to the Claude Platform. Pair Opus as an advisor with Sonnet or Haiku as an executor, and get near Opus-level intelligence in your agents at a fraction of the cost.
I've found Managed Agents to somehow be both the fastest way to hack together a weekend agent project and the most robust way to ship one to millions of users. It eliminates all the complexity of self-hosting an agent but still allows a great degree of flexibility with setting up your harness, tools, skills, etc.
New on the Engineering Blog: Building Managed Agents—our hosted service for long-running agents—meant solving an old problem in computing: how to design a system for “programs as yet unthought of.”
Shipping a production agent meant months of infrastructure work first. Managed Agents handles that for you. Define your agent's tasks, tools, and guardrails, and we run it on our infrastructure. Here's what early customers have built:
Run /powerup to learn our team's favorite Claude Code CLI features!
Glasswing is possibly the most consequential event in the AI industry I've seen up close since joining Anthropic almost 3 years ago. It feels like we're at a turning point in history.
We released Claude Opus 4.6 just two months ago. Today we're sharing some info on our new model, Claude Mythos Preview.
Introducing Project Glasswing: an urgent initiative to help secure the world’s most critical software. It’s powered by our newest frontier model, Claude Mythos Preview, which can find software vulnerabilities better than all but the most skilled humans.
We've signed an agreement with Google and Broadcom for multiple gigawatts of next-generation TPU capacity, coming online starting in 2027, to train and serve frontier Claude models.
New Anthropic Fellows Research: a new method for surfacing behavioral differences between AI models. We apply the “diff” principle from software development to compare open-weight AI models and identify features unique to each.
These vectors shape Claude’s behavior. When we present the model with pairs of activities, emotion vector activations shape its preferences. If an activity lights up the “joy” vector, the model prefers it; if it lights up “offended” or “hostile,” the model rejects it.
I love using Claude Code on Claude mobile app to fire off ideas on the go, then pick them up on my laptop later. We support easily teleporting sessions to your local CLI. Download link for Claude iOS and Android apps:
@Jack_Raines Happy birthday man!
We've made setting up https://t.co/wbJhWHsewH with GitHub much easier! You can now run /web-setup in a local `claude` session to use your local GitHub credentials on the web
Excited to see everyone at Code with Claude! What would you like to hear from us at this year's sessions?
Auto mode is a step change improvement in the Claude Code UX, balancing autonomy and safety. Almost everyone on our team uses this as a daily driver. Now available to Claude for Team users! `claude --enable-auto-mode` to turn on, then Shift + Tab to enter the mode
Highly recommend reading this guest post by theoretical physicist Matthew Schwartz to get a sense of how AI is helping science. He found Opus 4.5 to be roughly the level of a second-year grad student and it helped him accelerate his research by 10x.
Goodbye --dangerously-skip-permissions, hello auto mode
The future where I never have to open up my laptop to get work done is becoming real very fast
The PM playbook was built on an assumption that the technology underneath your product is roughly stable With the current pace of model progress, this is no longer true. Here's how we've evolved the PM role:
We're hosting a webinar today at 10am PT that should be very helpful for folks trying to learn how to apply AI to their work. We'll be sharing best practices on how to use new products like Claude for Excel/Powerpoint. Attendees will also get one month free of Claude Pro.
We now support custom environments when you run Claude Code remotely via , Claude desktop, and Claude mobile apps!
It’s a great time to build something new! For the next two weeks, we’re doubling rate limits on weekends and outside 5-11am PT on weekdays
my three favorite claude code shortcuts: 1. `!` prefix runs bash inline. the command + output land in context 2. `ctrl+s` stashes your draft. type something else, submit, and it pops back 3. `ctrl+g` opens the prompt (or plan) in $EDITOR for bigger edits
Opus 4.6 1M context is now the default model for Max, Team and Enterprise users. Enjoy 🎉
Tons of improvements shipped with this one: - Opus 4.6 1M is now the default Opus model for Claude Code users on Max, Team, and Enterprise plans. - No more long context price increase in the API. - No beta header required in the API. - Include up to 600 images in one request.
Install the Claude for Excel and Claude for PowerPoint add-ins to bring Claude directly into your workflow As of today, these agents support Skills and are able to share context with each other Excel install: PowerPoint install: https://t.co/GJ9MM9Njqd
I'll be speaking at the O'Reilly AI Codecon: Software Craftsmanship in the Age of AI on March 26 at 8am PT/11am ET Join us to explore what it takes to build excellent software in the age of AI that creates value for all participants Sign up:
Generative UI is here and it works very very well
Claude for all things knowledge work feels like it is on a very similar trajectory to what agentic coding experienced last year. I expect entire industries that rely on spreadsheets and powerpoints to begin to be transformed in the next few months.
@karinanguyen this is cool! congrats on getting this out, karina!
This has been a game changer for our internal eng and research teams. Rare to see a product get this much praise from some of the top engineers I know.
@max_a_schwarzer @akbirkhan @MillionInt @polynoamial welcome to anthropic!
Here's a roundup of how Claude Code has changed engineering at inside Ramp, Rakuten, Brex, Wiz, Shopify, and Spotify 🧵
I go offline for one week: - DoW saga - everyone from trump to katy perry posts about us - Claude hits 1 on app store - sign-up records broken, servers are melting - oh also we shipped a ton of new stuff in record time starting to think this is what the takeoff feels like
It was easy to miss all the stuff we shipped at Anthropic this past week given... everything else that happened. A few of my favorites across Claude Code, claude dot ai, and Cowork:
Proud to work at Anthropic and stand up for our values 💛
Opus 3 would be proud 🇺🇸
@katyperry thank you for your support 💛
/remote-control is now available to all Pro users!
`/plugin install slack` to connect Claude Code with Slack!
A year ago, we had no idea if anyone would want an AI agent in their terminal. Thank you for taking a chance on something new, for the feedback, and for building products with Claude Code that we never could have imagined. Excited for year 2 🛠️
jarred is cooking 🍳
@jackrudenko thanks for flagging this. we're looking into it
We just launched /remote-control so you can continue local Claude Code sessions from your phone This is now rolled out to all Max users!
@cyrusnewday looking into it!
Never make a powerpoint manually again.
Huge quality of life upgrade for devs: We've added automatic prompt caching to the API which means you no longer have to set cache points in your requests!
Sonnet 4.6 is here. It's our most capable Sonnet model by far, approaching Opus-class capabilities in many areas. Very excited for folks to try this one out. The performance jump over Sonnet 4.5 (which was released just over four months ago) is quite insane.
Less than a year and a half ago computer use was barely even a thing and now we're near human-level capability. Another reminder that things are improving very fast.
@boltdotnew 🙌
Underrated dev upgrade from today's launch: Claude's web search and fetch tools now write and execute code to filter results before they reach the context window. When enabled, Sonnet 4.6 saw 13% higher accuracy on BrowseComp while using 32% fewer input tokens.
This has one been one of my biggest productivity boosts of the past year. Highly recommend trying this out, in some ways it feels just as impactful as a model intelligence upgrade.
Opus 4.6 is here. The jump in autonomy is real. The biggest shift for me personally has been learning to let it run. Give it the context, step away, and come back to something pretty amazing. The way we work alongside models is starting to completely change.
https://t.co/M7oSwIDCla
@FactoryAI opus 🤝 droid
@v0 love to see it!
@windsurf 🙌
@cursor_ai Excited for folks to use 4.6!🙌