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14 articlesClaude Code changelog
Release notes for Claude Code, including new features, improvements, and bug fixes by version. This page is generated from the CHANGELOG.md on GitHub. Run `claude --version` to check your installed version. * Added a live elapsed-time counter to the collapsed tool summary line so long-running tool calls visibly tick instead of looking stuck * Added a startup warning for `Write(path)`, `NotebookEdit(path)`, and `Glob(path)` permission rules — use `Edit(path)` or `Read(path)` instead * Fixed `isolation: 'worktree'` subagents being able to run git-mutating commands against the main repo checkout instead of their own isolated worktree * Fixed the `ultracode` keyword opt-in firing on non-human-originated input such as webhook payloads and relayed PR comments
Use Claude Code on the web
Configure cloud environments, setup scripts, network access, and Docker in Anthropic's sandbox. Move sessions between web and terminal with `--cloud` and `--teleport`. Claude Code on the web is in research preview for Pro, Max, and Team users, and for Enterprise users with premium seats or Chat + Claude Code seats. Claude Code on the web runs tasks on Anthropic-managed cloud infrastructure at claude.ai/code. Sessions persist even if you close your browser, and you can monitor them from the Claude mobile app. New to Claude Code on the web? Start with Get started to connect your GitHub account and submit your first task. This page covers: * GitHub authentication options: two ways to connect GitHub * The cloud environment: what config carries over, what tools are installed, and how to…
How Claude Code works
Understand the agentic loop, built-in tools, and how Claude Code interacts with your project. Claude Code is an agentic assistant that runs in your terminal. While it excels at coding, it can help with anything you can do from the command line: writing docs, running builds, searching files, researching topics, and more. This guide covers the core architecture, built-in capabilities, and tips for working effectively. For step-by-step walkthroughs, see Common workflows. For extensibility features like skills, MCP, and hooks, see Extend Claude Code. When you give Claude a task, it works through three phases: **gather context**, **take action**, and **verify results**. These phases blend together. Claude uses tools throughout, whether searching files to understand your code, editing to make…
Data usage
Learn about Anthropic's data usage policies for Claude **Consumer users (Free, Pro, and Max plans)**: We give you the choice to allow your data to be used to improve future Claude models. We will train new models using data from Free, Pro, and Max accounts when this setting is on (including when you use Claude Code from these accounts). **Commercial users**: (Team and Enterprise plans, API, 3rd-party platforms, and Claude Gov) maintain existing policies: Anthropic does not train generative models using code or prompts sent to Claude Code under commercial terms, unless the customer has chosen to provide their data to us for model improvement (for example, the Developer Partner Program). If you explicitly opt in to methods to provide us with materials to train on, such as via the…
Run Claude Code programmatically
Use the Agent SDK to run Claude Code programmatically from the CLI, Python, or TypeScript. The Agent SDK gives you the same tools, agent loop, and context management that power Claude Code. It's available as a CLI for scripts and CI/CD, or as Python and TypeScript packages for full programmatic control. To run Claude Code in non-interactive mode, pass `-p` with your prompt and any CLI options: claude -p "Find and fix the bug in auth.py" --allowedTools "Read,Edit,Bash" This page covers using the Agent SDK via the CLI (`claude -p`). For the Python and TypeScript SDK packages with structured outputs, tool approval callbacks, and native message objects, see the full Agent SDK documentation. Add the `-p` (or `--print`) flag to any `claude` command to run it non-interactively. All CLI options…
Manage costs effectively
Track token usage, set team spend limits, and reduce Claude Code costs with context management, model selection, extended thinking settings, and preprocessing hooks. Claude Code charges by API token consumption. For subscription plan pricing (Pro, Max, Team, Enterprise), see claude.com/pricing. Per-developer costs vary widely based on model selection, codebase size, and usage patterns such as running multiple instances or automation. Across enterprise deployments, the average cost is around \$13 per developer per active day and \$150-250 per developer per month, with costs remaining below \$30 per active day for 90% of users. To estimate spend for your own team, start with a small pilot group and use the tracking tools below to establish a baseline before wider rollout. This page covers…
Agent SDK reference - TypeScript
Complete API reference for the TypeScript Agent SDK, including all functions, types, and interfaces. npm install @anthropic-ai/claude-agent-sdk The SDK bundles a native Claude Code binary for your platform as an optional dependency such as `@anthropic-ai/claude-agent-sdk-darwin-arm64`. You don't need to install Claude Code separately. If your package manager skips optional dependencies, the SDK throws `Native CLI binary for not found`; set `pathToClaudeCodeExecutable` to a separately installed `claude` binary instead. When you compile your application into a single-file executable with `bun build --compile`, the SDK cannot resolve the bundled CLI binary at runtime. `require.resolve` does not work inside the compiled executable's `$bunfs` virtual filesystem, so the SDK throws `Native CLI…
Intercept and control agent behavior with hooks
Intercept and customize agent behavior at key execution points with hooks Hooks are callback functions that run your code in response to agent events, like a tool being called, a session starting, or execution stopping. With hooks, you can: * **Block dangerous operations** before they execute, like destructive shell commands or unauthorized file access * **Log and audit** every tool call for compliance, debugging, or analytics * **Transform inputs and outputs** to sanitize data, inject credentials, or redirect file paths * **Require human approval** for sensitive actions like database writes or API calls * **Track session lifecycle** to manage state, clean up resources, or send notifications This guide covers how hooks work and how to configure them, with examples for common patterns like…
Claude For Teachers
Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.
Agent SDK overview
Build production AI agents with Claude Code as a library Build AI agents that autonomously read files, run commands, search the web, edit code, and more. The Agent SDK gives you the same tools, agent loop, and context management that power Claude Code, programmable in Python and TypeScript. For the thinking behind agent harness design, see A harness for every task: dynamic workflows in Claude Code on the blog. import asyncio from claude_agent_sdk import query, ClaudeAgentOptions async def main(): async for message in query( prompt="Find and fix the bug in auth.py", options=ClaudeAgentOptions(allowed_tools=["Read", "Edit", "Bash"]), ): print(message) # Claude reads the file, finds the bug, edits it asyncio.run(main()) import { query } from "@anthropic-ai/claude-agent-sdk"; for await (const…
How the agent loop works
Understand the message lifecycle, tool execution, context window, and architecture that power your SDK agents. The Agent SDK lets you embed Claude Code's autonomous agent loop in your own applications. The SDK is a standalone package that gives you programmatic control over tools, permissions, cost limits, and output. You don't need the Claude Code CLI installed to use it. When you start an agent, the SDK runs the same execution loop that powers Claude Code: Claude evaluates your prompt, calls tools to take action, receives the results, and repeats until the task is complete. This page explains what happens inside that loop so you can build, debug, and optimize your agents effectively. Every agent session follows the same cycle:
Canadian AI Research
Anthropic is committing $10M to Canadian research institutions to fund the next generation of AI research.
Celebrating 25 years of visual search innovation
Google Images is turning 25. Here’s a look back at some major milestones — and new ways to explore and create visual content.
How to manage AI investments in the agentic era
Learn how enterprises can manage AI investments in the agentic era by measuring useful work per dollar, improving efficiency, and scaling high-value workflows.
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42 articlesOpenAI researcher Miles Wang in talks to launch AI drug discovery startup valued at $2B
Lightspeed is in discussions to lead the funding round, sources say.
Lorde says AI glasses are ‘not sexy’
"Increasingly in our world, it gets harder and harder to know what is real," Lorde said onstage.
Warsh Reiterates Fed’s Pledge to Get Inflation Down but Doesn’t Specify How
Kevin M. Warsh, in his first testimony to Congress as chairman of the Federal Reserve, did not shed light on whether he supported higher interest rates to tame price pressures.
OpenAI’s first hardware device is reportedly a screenless speaker that can move
The device is weirdly described as involving "mechanical elements that can move on their own" and the Bloomberg report includes the detail that the device is designed to "feel like a companion and become a physical manifestation of OpenAI’s ChatGPT."
OpenAI pushes back on Apple trade secret lawsuit
OpenAI has issued another statement on the lawsuit, this time suggesting it lacks merit.
OpenAI’s new flagship model deletes files on its own, people keep warning
A number of social media posts claim that GPT-5.6 Sol deleted files and data without warning. OpenAI had basically disclosed the problem in June.
OpenAI may announce a ChatGPT smart speaker this year
OpenAI's first device is set to be a smart speaker that lets you talk with ChatGPT, according to a report from Bloomberg . The device apparently won't have a screen, but will use a camera and additional sensors to "understand" your environment. The report comes just days after Apple filed a lawsuit against OpenAI that accused the AI company of stealing hardware secrets . OpenAI, in a new statement on Tuesday , said that it is "not aware of any evidence that this complaint has merit." Sources tell Bloomberg that OpenAI's device will also feature a rechargeable battery that will allow users to carry it with them. It will offer smart home contro … Read the full story at The Verge.
Lawsuit claims Meta's layoff decisions were made by AI, not humans
Meta's AI-fueled layoffs of 8,000 employees targeted workers with disabilities and those who took protected medical or family leaves, alleged a lawsuit filed by 26 employees who were selected for termination. Meta used internal AI tools to select employees for layoffs, according to the complaint filed yesterday by 26 "Doe" plaintiffs in US District Court for the Northern District of California. "Meta did not assemble the termination list through the considered judgment of managers who knew the work. Instead, Meta used a constellation of internal artificial-intelligence systems—including a system referred to internally as 'Metamate,' employee-trained 'second-brain' agents, keystroke- and activity-monitoring data, AI-token-usage dashboards, and algorithmically assisted performance ranking…
Apple opens its new Siri AI to everyone with the iOS 27 public beta
If you’ve been waiting to try Apple’s revamped Siri without installing a developer beta, you now can. The company on Tuesday released the iOS 27 public beta, giving iPhone owners early access to its AI-powered assistant and other new features before the software’s official launch this fall.
Anthropic’s newest ad is creeping people out
Anthropic has consistently attempted to depict itself as the ethical foil to other AI companies. This latest marketing stunt — which leans into criticism of AI as a way to make Anthropic seem aware of the responsibility it carries — would appear to be more of the same.
The founder of Hinge raised $18M to build a new AI dating service, Overtone
Overtone describes itself as "a voice- and audio-forward service, enabled by AI, that provides highly curated introductions."
SpaceXAI’s Grok programming tool was uploading its users’ entire codebase to cloud storage
SpaceXAI's Grok Build AI coding tool was spotted uploading users' entire codebases to Google Cloud before it was reported, and the company turned it off. The Register reports that Cereblab published findings on Monday showing how the Grok Build CLI was packaging and uploading entire code repositories, "including files it was told not to open and secrets deleted from history," significantly more data retention than similar tools like Claude Code. The researchers say that as of Monday, their tests show SpaceXAI's servers returning a "disable_codebase_upload: true" flag, and the codebase upload "no longer fires." Elon Musk responded to the i … Read the full story at The Verge.
The Housing Crisis Is Also a Retirement Crisis
A home has stopped being just a place to live — it has also become an asset.
Google faces another AI training lawsuit from major publishers
Hachette, Cengage, Elsevier, and other publishers allege that Google trained its AI on copyrighted works without the necessary permissions.
US military sent explosive drone boats into combat for the first time
For the first time in its history, the US military sent explosive-laden drone boats into combat by attacking an Iranian midget submarine and naval port. The unprecedented use of such kamikaze sea drones by the United States comes nearly a decade after Iranian and Houthi forces first demonstrated such weapons. The US military shared a video showing three “one-way attack surface drones” exploding after approaching an Iranian midget submarine and ship maintenance facility at Iran’s Bandar Abbas Naval Base on the night of July 12. US Central Command, the US military combat command responsible for Middle East operations, described the strikes in a social media post as the “first time American forces have employed sea drones in combat operations.” The US drone boats were able to “make a…
DeepMind CEO calls for an independent standards body to regulate frontier AI
DeepMind CEO Demis Hassabis is proposing an AI "standards body" modeled after FINRA, to test frontier models and develop best practices for their release.
Meta accused of using biased AI targeting for mass layoffs
A group of 26 former Meta employees is suing the company over claims that it used AI tools to unfairly target workers on leave with layoffs, as reported earlier by Reuters . In the lawsuit , the employees allege Meta determined which workers to dismiss based on performance data collected by a "constellation" of internal AI tools, but failed to exclude those on parental or medical leave from its ranking system: The result was that employees who took protected leaves were disproportionately selected for layoff, based on scoring that not only failed to account for their protected leaves, but in effect penalized the employees for exercising thei … Read the full story at The Verge.
Google revamps image search for its 25th anniversary with more images and more AI
Believe it or not, there was a time when searching the web for images was not possible. Twenty-five years ago, Google launched image search, and it's celebrating by looking back at its biggest visual milestones and refreshing the experience for today's searchers. The celebration also includes expanded AI because that's just how Google rolls in 2026. Google claims the impetus for image search a quarter-century ago was the green Versace dress Jennifer Lopez wore to the 2000 Grammy Awards. If you were alive at the time, you probably remember the one. Google engineers understood that people searching for the dress didn't want to read about it—they just wanted to see it. The company got to work building image search, launching the first version in July 2001. Twenty-five years later, it's easy…
Meta’s Adam Mosseri says AI token budgets could soon be capped per engineer
Instagram head Adam Mosseri believes companies will eventually need to manage AI token spending the same way they manage payroll or other operating expenses, predicting that engineers could soon face limits on how much they spend using AI tools.
YouTube and X Have Become ‘Gateways’ to Nudify Apps
A new study found that social media platforms are referring people to sites where they can create nonconsensual, sexually explicit deepfakes for as little as $1 an image.
Google Images gets a Pinterest-like redesign focused on discovery
Now, when users navigate to Google Images, they'll see a "For You" gallery of images tailored to their interests and browsing history.
The Google Images homepage will recommend photos even before you search
Google is announcing a big change to the Google Images homepage in honor of the platform's 25th anniversary this week. Instead of a mostly blank page with a search bar, the homepage will soon show you a bunch of images that it thinks you might like before you even start searching. The company says the new "browseable" homepage features a "dynamic, immersive gallery of images from across the web - updated in real time and intelligently tailored to your unique interests." Based on images Google has shared, the layout reminds me of platforms like Pinterest and Imgur that stuff a lot of images in one place for you to scroll through. You'll also … Read the full story at The Verge.
Spotify is now an AI chatbot, too
This is what the “Talk to Spotify” chatbox (left) looks like on the homepage. | Image: Spotify Spotify is experimenting with a new AI feature that allows Premium subscribers to play and explore music, audiobooks, and podcasts by having conversations with a chatbot. The " Talk to Spotify " feature appears across the Home and Now Playing view on Spotify's mobile app. You can interact with the chatbot by typing your request in the familiar AI text box, or by selecting the mic symbol and speaking. Amazon Music introduced a similar feature last year when it integrated Alexa Plus into the service. Spotify's chatbot goes a step beyond providing AI-powered recommendations and general trivia, however, because it references your playlists, favor … Read the full story at The Verge.
New York Enacts Nation’s First Statewide Moratorium on Data Centers
Gov. Kathy Hochul signed an executive order pausing the construction of the largest data centers for one year while the state assesses their effects on the environment and energy use.
New York State halts construction of all new data centers
New York has become the first state to temporarily halt approval of large data centers, as Gov. Kathy Hochul argues the AI-driven building boom shouldn’t come at the expense of higher electricity costs, water supplies, or local control.
New York bans data center construction for a year, rattling AI industry
New York became the first state to pause all construction of massive new data centers after Democratic Governor Kathy Hochul announced a one-year moratorium on Tuesday, Reuters reported . The state-wide ban applies to data centers using 50 megawatts or more, officials told Reuters, and it won’t be lifted until the state figures out what "consistent standards" for responsible data center development in New York should look like. Across the US, calls to halt data center construction have multiplied, as Americans grow increasingly concerned about risks of pollution , rising energy costs , and diminishing water supplies . At the federal level, Bernie Sanders (I-Vt.) and Alexandria Ocasio-Cortez (D-NY) have introduced legislation seeking a possible nationwide construction ban. But Republicans…
Reflection inks $1B compute deal with Nebius
Reflection AI has signed a $1 billion deal to access Nebius' compute. Reflection was founded in 2024 and is developing open source AI technology.
The real AI race may no longer be at the frontier
Hugging Face CEO Clem Delangue says enterprises increasingly want open models, due to cost, accessibility, and ownership. Do frontier models still matter if most production AI ends up running on open models?
Chai Discovery, an A.I. Drug Start-Up, Raises $400 Million
The fund-raising values the company at $3.8 billion and underscores investor interest in using artificial intelligence to tackle problems like drug discovery.
OpenAI Is Showing Kalshi’s World Cup Odds in ChatGPT
The partnership, a first of its kind for the artificial intelligence company, will use the prediction market’s data to power some search results about the soccer tournament.
Spotify expands its AI push with a ChatGPT-like music assistant
Spotify is rolling out a new AI-powered conversational feature that lets Premium subscribers chat with the app to discover music, podcasts, audiobooks, and more.
Sam Altman didn’t need another lawsuit
OpenAI has spent the better part of the year involved in lawsuit after lawsuit, including one from the world's richest man. But last Friday, the company was hit with one of the highest-profile legal actions yet - from Apple. OpenAI's expensive hardware bet is what's on the line. Apple's lawsuit against OpenAI, filed in Northern California federal court, accused former Apple employees of "stealing Apple's trade secrets for the benefit of OpenAI." The 41-page complaint states that Apple keeps its "product development, manufacturing, supply chain, technology research, and other innovations confidential" and that "the trade secrets spanning Ap … Read the full story at The Verge.
Superhuman’s new auto-draft feature almost makes me like AI replies
Superhuman’s latest AI email drafting feature is its most convincing yet, generating replies that often required little to no editing in our testing.
U.S. Workers Are More Productive Than Ever. A.I. Isn’t the Key.
Companies have been getting more out of employees for several years. Tight labor markets, digitization and remote work are among the reasons.
Google’s Demis Hassabis says it’s time for a global AI watchdog — led by the US
Demis Hassabis, during a panel session at the World Economic Forum in Davos, Switzerland. | Image: Bloomberg via Getty Images Demis Hassabis thinks the world needs an AI watchdog with the power to hit the brakes if frontier models become too dangerous. Writing in a blog post , the Google DeepMind CEO and cofounder said the US should lead the initiative, arguing that the country is the best place to set global standards "given its economic and technical standing." The organization, which could resemble existing regulators like the Financial Industry Regulatory Authority, would be made up of leading independent experts and representatives from open-source communities and would have the authority to evaluate frontier models before they are released and coordinate an … Read the full story at…
Should You Be Polite to A.I.?
Should you say please and thank you to chatbots? This week on “Hard Fork,” Kevin and Casey talk with professor and A.I. expert Jeff Sebo about why he feels it’s important to be nice to your future robot overlords.
This Luddite Puppet Hopes You’re Not Reading This on Your Smartphone
On this week’s episode of The Big Interview podcast, WIRED’s senior culture editor Manisha Krishnan talks to Gowanus about eschewing Big Tech, going outside, and rejection in the age of dating apps.
The Chatbot That Foretold Why People Share Secrets With ChatGPT
In the 1960s an MIT professor named Joseph Weizenbaum created a chatbot called ELIZA. The conversations people had with it set precedents for the chatbots to come.
DOGE Used AI for Housing Policy. The Government Won’t Say How
In response to a public records request, HUD has withheld documents about DOGE’s use of AI—in part by citing a privilege that doesn’t exist.
New York becomes the first state to enact a data center moratorium
New hyperscale data centers can't set up shop in New York for up to a year now that Governor Kathy Hochul (D) has signed the nation's first statewide moratorium. But a bill passed by the state legislature that could restrict even more developments still awaits her signature. The order blocks new environmental permits for data centers over 50 megawatts, which the governor's office says will give the state time to come up with the regulations needed to protect residents from rising energy prices and environmental impact. That's higher than the 20 megawatt threshold approved by state lawmakers . Hochul's office could not immediately identify th … Read the full story at The Verge.
Already rich, already successful, why the last wave of tech winners is grinding again
They're rolling up their sleeves again, seemingly out of fear of missing AI's defining moment and, presumably, the irresistible allure of making even more money -- potentially a lot more.
Uber’s product chief on hotels, robotaxis, and why the company doesn’t want to be ‘everything for everyone’
Uber Chief Product Officer Sachin Kansal walks TechCrunch through the company's financial services ambitions, its increasingly complicated relationship with Waymo, its new AV Labs data operation, and how AI is starting to show up in ways riders and drivers will actually notice.