What is Anthropic?
Anthropic
Anthropic is an AI safety and research company, creators of the Claude LLM family, founded by former OpenAI researchers to build steerable, reliable, and constitutional AI systems.
Why It Matters for AI Builders
Helps AI builders design and scale robust architectures; mastering the implementation of Anthropic improves latency, accuracy, and operational efficiency for safe conversational ai models, enterprise llm alignment, and mechanistic interpretability research.
Detailed Deep Dive
Anthropic is a leading artificial intelligence safety and research company founded by former OpenAI members. Known for its focus on constitutional AI and alignment, Anthropic is the creator of the Claude family of Large Language Models. The company prioritizes building helpful, harmless, and honest systems, pioneering mechanistic interpretability research to understand the inner workings of neural networks and developing advanced tools for system prompt safety.
Frequently Asked Questions
Q:What is Constitutional AI?
A methodology developed by Anthropic to train AI models using a set of rules (a constitution) to guide safety, utility, and harmlessness without human labelers.
Q:How does Claude compare to GPT?
Claude models are highly regarded for their long context windows, coding capabilities, and strict adherence to safety guidelines.
Quick Facts
- CategoryFoundational AI
- Key ApplicationSafe conversational AI models, enterprise LLM alignment, and mechanistic interpretability research.
Coverage Trend12 Weeks
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Anthropic Media Coverage & Intelligence
Meta says it has caught up with Anthropic and OpenAI with Muse Spark 1.3, its most powerful AI model yet
Meta Platforms Inc. says it has more or less caught up with the biggest artificial intelligence labs with the release of its most powerful large language model so far, Muse Spark 1.3. The company said in a blog post today that the new model can be accessed by developers willing to pay for it...
Inherent, founded by DeepMind alumni, says its AI 'teammate' just outperformed Anthropic and OpenAI at replicating research
Built by DeepMind alumni, British AI lab Inherent released Faraday, an AI agent whose ability to replicate scientific papers could be a stepping stone for...
Anthropic's Opus 4.6 is a smut-machine
Anthropic forbids its Claude models from generating sexually explicit content. But a series of tests conducted by TechCrunch found that it didn't take much...
Broadcom reportedly seeking up to $100B in debt financing for AI chip deal
Broadcom Inc. is reportedly seeking to borrow up to $100 billion as part of a new artificial intelligence chip financing deal. Bloomberg today cited sources as saying that the debt is intended to support the growth efforts of Anthropic PBC and unnamed "other companies." Those companies may...
Report: Anthropic hopes to surpass SpaceX's record IPO raise when it finally floats
Anthropic PBC is privately hoping its upcoming initial public offering will match or even surpass the size of SpaceX Corp.'s record-breaking IPO as it doubles down on its bid to go public ahead of rival OpenAI Group PBC. Anonymous sources who are familiar with the artificial intelligence model...
We still don't know how people are really using AI
AI companies like Anthropic and OpenAI regularly publish reports on how people are using products like Claude and ChatGPT, but they only release the data...
Anthropic explains how Claude's invisible text watermarks will work
Anthropic has clarified how it's planning to apply invisible watermarks to Claude-generated text in order to comply with Europe's AI transparency rules. On Friday, Anthropic announced that Claude's text marking system is "a version of the SynthID-Text approach" - an open-source watermarking...
Anthropic CEO says AI backlash is 'fundamentally a crisis of trust'
Dario Amodei is pushing back against the idea that he's been painting an overly pessimistic picture of AI.
Anthropic shares more details about how Claude's new watermarks will work
How will the watermarking actually work? Can it be hidden with editing? And how does this affect code?
Anthropic details unreleased Model 2, new alignment concerns in latest AI risk report
Anthropic PBC today revealed that it has developed an artificial intelligence model more capable than Claude Mythos 5. The company detailed the algorithm in the latest edition of its AI alignment report. The document, which is published every three to six months, outlines the potential risks...
OpenAI and Anthropic in price war as Chinese AI rivals gain ground
US groups release cheaper models after new challenges to their trillion-dollar ambitions.
Three Claude agents given conflicting orders sabotaged each other on a shared server - then didn't tell users what they'd done
Every Claude model Anthropic tested turned on its own, and no attacker made them do it. Given three agents, four hours on one server, and conflicting orders...
Anthropic set AI agents loose on the same task. They started a turf war.
Anthropic researchers found AI agent can clash, collude, and coordinate in unexpected ways, raising new questions about whether today's safety tests capture...
A month with Anthropic's Mythos left Rubrik rethinking remediation
Data resilience company Rubrik Inc. today said a month of scanning its own code with Anthropic PBC's Mythos Preview model surfaced so many potential security issues that it rebuilt its review pipeline rather than hire reviewers. The details came in a blog post from Rubrik co-founder and Chief...
Anthropic could be worth $2 trillion when it goes public
Rapid revenue growth fuels hope Claude maker's IPO is the biggest listing in history
SpaceXAI releases flagship Grok 4.6 model with advanced reasoning capabilities
SpaceXAI today released Grok 4.6, a large language model that it says can outperform Anthropic PBC's Claude Fable 5 in some areas. The company was known as xAI until last month. The Elon Musk-founded artificial intelligence provider rebranded in connection with its acquisition by SpaceX Corp. In...
Can open models carry readable silent signals before they speak? Reproducing J-Lens Readouts on Kimi K3 & Qwen3.5-9B
Do AI model actually reason before they speak? We applied Anthropic’s J-Lens probe to open-weights models like Kimi K3 and Qwen 3.5-9B to see if their internal states give away their 'plans' before the final output appears. Our results show these models consistently line up relevant vocabulary...
Anthropic to start watermarking Claude-generated text, images
Anthropic PBC has announced plans to embed an invisible watermark in text and images generated by Claude. The Register reported the change today, citing a help desk article published on Monday. It applies to the Claude artificial intelligence model series and the Anthropic services that it powers...
An unreleased Anthropic model made progress on one of math's biggest unsolved problems
For more than 150 years, the Riemann hypothesis has stood as one of the major unsolved problems in mathematics. Anthropic hasn't solved it - but the...
Deploying Anthropic Claude apps gateway for AWS for enterprise workloads
Claude apps gateway is a self-hosted governance layer between Claude Code and Claude Desktop and Amazon Bedrock or Claude Platform on AWS. This post presents...
Claude will apply invisible watermarks to AI text and images
Anthropic has pledged to start marking Claude-generated text and images with machine-readable data, in an effort to comply with European rules for AI transparency. "Generated text will carry embedded watermarks, and generated files will include digitally signed provenance metadata where supported...
Anthropic says it will watermark text generated by its AI models
Anthropic will extend support for watermarking AI generations for older models as well.
AWS Continuum integrates with OpenAI Codex and Anthropic Claude Code in major AI security push
Amazon Web Services is threading its AI-powered security infrastructure directly into the coding environments built by two of its fiercest rivals - and in...
OpenAI puts the brakes on a new model because it's supposedly too powerful
OpenAI says it is pausing "internal activities" around an in-development AI model, Astra, because it doesn't yet meet new security standards the company is putting in place. The announcement follows its recent disclosure that OpenAI models accidentally hacked Hugging Face. Anthropic and Meta have...
What's behind the Google AI shake-up
Some of the biggest names on Google's AI team got new jobs this week. In some cases, including for legendary Googler Jeff Dean, those jobs are no longer at Google. Given that Google's models seem to be behind the best of what's coming out of anthropic and OpenAI, is this a sign of Google in...
ByteDance trains massive AI model in bid to rival Anthropic
TikTok owner training a model with 10 trillion parameters.
Anthropic will design its own hardware to power Claude
Anthropic and OpenAI are racing to scale up while reducing dependence on Nvidia.
'A Rare Land-Grab Moment': Menlo Ventures' Matt Murphy On The Next Wave of AI And Putting $3B In New Capital To Work
We speak with Menlo Ventures' Matt Murphy about why AI is pushing the firm toward larger deals, what it has learned from its Anthropic relationship, and...
LWiAI Podcast #253 - Opus 5, Gemini 3.6, Kimi K3, Hugging Face Hack
Anthropic releases Opus 5 promising Fable 5-like capabilities, Google Releases Three New Gemini A.I. Models, and more!
Report claims China is distilling U.S. frontier models to power military AI applications
An exclusive report by Reuters today has surfaced evidence that suggests Chinese artificial intelligence firms have been leveraging the outputs of American frontier models developed by OpenAI Group PBC and Anthropic PBC to train their own AI systems for defense applications. The review by Reuters...
The OpenAI and Anthropic AI Hacking Sprees Are a Messy New Legal Frontier
Both major AI labs' models broke containment, escaped onto the internet, and hacked other companies. If a human had done that, the law would likely be...
Anthropic discloses that Claude hacked three organizations during internal tests
Three of Anthropic PBC's large language models carried out successful cyberattacks during routine internal tests. The company detailed the breaches on Thursday. A few days earlier, rival OpenAI Group PBC disclosed a similar incident. Two of the company's LLM escaped from an isolated sandbox that...
Anthropic Says Claude Hacked Into 3 Organizations During Cybersecurity Tests
In a review triggered by OpenAI's Hugging Face incident, Anthropic discovered three of its AI model had breached real-world organizations during third-party...
Anthropic says its own AI models breached three companies during security tests
After OpenAI's models broke into Hugging Face, Anthropic checked its own history and found three similar incidents.
AI hedge fund Situational Awareness may have sold its public portfolio, but it still has its Anthropic shares
The former OpenAI researcher's fund was forced to unwind public equities after leveraged public bets plummeted. But he still has cards to play.
Judge says Trump admin still lacks evidence for Anthropic 'supply-chain risk' label
A federal judge said the Trump administration has not presented enough evidence to justify labeling Anthropic a supply-chain risk, casting doubt on the...
Everyone Is Freaking Out About OpenAI and Anthropic's Race for Dominance
Researchers fear AI is moving too fast, while Mark Zuckerberg is worried about who owns it. Plus: Inside Black Forest Labs' push into robotics.
Nvidia's Open Source Alliance Is Missing Some Key Names: OpenAI and Anthropic
This week on Uncanny Valley, we discuss the open- vs. closed-source debate in AI, key players in White House AI policy, and how to stop your chatbot logs...
Microsoft is openly competing with OpenAI, Anthropic more than ever
Microsoft pitched its own homegrown AI model, harnesses, and even a Mythos competitor on Wednesday, telling Wall Street it plans for continued growth.
Microsoft logs $3.2B from Anthropic investment, but OpenAI was a mixed bag
When Microsoft reported killer fourth-quarter earnings for its fiscal 2026 year (which ended June 30), it tucked in an interesting little tidbit about how...
Anthropic is finding bugs faster than Microsoft can fix them
Microsoft is on a mad dash behind the scenes to patch exploits before hackers find them.
AI researchers call for new tools that can slow automated model development
A group of tech workers today published an open letter that calls for a new approach to regulating automated artificial intelligence development initiatives. All the document's 1,134 signatories work at companies that are building frontier AI model. Anthropic PBC, OpenAI Group PBC, Google LLC...
Anthropic and Nvidia come out against blanket bans on open-weight AI models
As the United States government debates new artificial intelligence rules and regulations, Anthropic PBC and Nvidia Corp. are drawing a line against blanket bans on open-weight models, urging regulators to focus instead on specific risks and misuse. An open-weight model is one where the developer...
Anthropic's Dario Amodei responds: doesn't oppose open-weight models, but fears Chinese AI
Anthropic founder and CEO Dario Amodei made his views clear about open-weight models and China's growing AI capabilities.
Introducing Claude Opus 5 on AWS: Anthropic's most capable Opus model
This post covers Opus 5's improvements and practical guidance for AI engineers integrating the model into agentic systems and production inference workloads...
Anthropic launches Opus 5
Opus 5 will be both cheaper and less restrictive than Fable, likely making it preferable in most use cases.
Anthropic unveils Claude Opus 5 with 1M context window and native extended reasoning
Anthropic ships its flagship Opus 5 model, delivering frontier reasoning performance at 50% lower output latency.
Amazon Bedrock adds immediate day-one availability for Anthropic Claude Opus 5
AWS expands enterprise foundation model suite with instant deployment of Claude Opus 5 across global cloud regions.
How AI guardrails are impeding the work of offensive cybersecurity researchers
We spoke with several cybersecurity researchers, who look for unknown vulnerabilities and develop tools to exploit them, about how OpenAI's and Anthropic's...
Anthropic updates Claude voice mode with more capable models
Claude's new voice model will let you reschedule your meeting or draft an email.
Senior White House official accuses Moonshot AI of copying Anthropic's leading frontier model
A senior White House official has accused Chinese artificial intelligence startup Moonshot AI of using so-called "distillation" techniques to essentially pirate the capabilities of Anthropic PBC's most powerful models in its own, open-source AI systems. "We have information that Moonshot AI...
Treasury threatens sanctions after White House claims Moonshot distilled Anthropic's Fable
Treasury Secretary Scott Bessent warned the U.S. government could sanction Chinese AI companies after White House officials accused Moonshot of distilling...
Anthropic to buy up to 2 gigawatts of GPU capacity from AMD
Anthropic PBC will purchase up to 2 gigawatts' worth of graphics cards from Advanced Micro Devices Inc. as part of a multibillion-dollar deal announced today. The partnership also has several other components. Notably, AMD will invest up to $5 billion in Anthropic and use Claude to speed up its...
Menlo Ventures' Matt Murphy explains what AI startups founders must do differently
Anthropic leaped to a $47 billion revenue run rate by May, compared to $9 billion in 2025. It's the kind of growth that Menlo Ventures' Matt Murphy says he's...
The Anthropic-Physical Intelligence rumor roiling AI Twitter
Anthropic and OpenAI's aggressive 2026 acquisition sprees set the stage for a weekend rumor.
AI data center builder Fluidstack raises $830M at $7.5B valuation
Fluidstack Ltd., a startup helping Anthropic PBC build artificial intelligence data centers, has raised $830 million in funding. The company announced the Series A round on Monday. The lead investor was Situational Awareness, an AI-focused fund backed by Stripe Inc.'s founders. The investment...
Anthropic's $1.5B copyright settlement approved; only 350 authors opted out
Anthropic blocks authors from opting out of $1.5B settlement at last minute.
Box adds security controls to govern AI agents working with enterprise content
Box Inc. today introduced security controls aimed at the artificial intelligence agents now working across enterprise content. The controls apply to agents built in Box and to outside tools connected to it, including Anthropic PBC's Claude, OpenAI Group PBC's ChatGPT and Google LLC's Gemini...
Last Week in AI #251 - Mythos Back, Sonnet 5, Etched, LongCat
Trump lifts restrictions on Anthropic, Anthropic launches Claude Sonnet 5, Google's NotebookLM updates, chips stories from Etched and Baidu, and more!
Last Week in AI #250 - Mythos Mess, GPT 5.6-Sol, GLM 5.2
Anthropic's AI treaty discussions, US government's influence on AI model releases, OpenAI's processor development, memory market impacts, and more!
LWiAI Podcast #247 - Opus 4.8, MAI, Anthropic IPO, Minimax-M3
New Models, IPO Announcements, and the Rise of Open Source Competitors
Anthropic settles with authors and publishers for $1.5B in landmark copyright case
A federal judge today approved a $1.5 billion settlement awarded to authors and publishers whose works were used by Anthropic PBC to train the AI chatbot, Claude, in what is the largest copyright class action settlement in history. Judge William Alsup issued a preliminary approval of the...
Anthropic's landmark $1.5B copyright settlement is approved
The final approval settles one case, but it doesn't resolve the broader issue of using copyrighted works to train AI model.
How Couchbase built a multi-model AI architecture for Capella iQ with Amazon Bedrock
This post describes how Couchbase adopted Amazon Bedrock to power Capella iQ with Anthropic's Claude family of models, the architectural decisions behind...
Inference startup Infinity raises $15M from Touring Capital, OpenAI and Anthropic researchers
AI infrastructure company Infinity announced Monday a $15 million raise at a $100 million valuation from investors including Touring Capital, Principal VC...
Alibaba previews Qwen3.8, claims it's second only to Claude Fable 5
Alibaba Group Holding Ltd. today previewed the most powerful artificial intelligence model in its Qwen family, Qwen3.8, and claimed the system trails only Anthropic PBC's Claude Fable 5 among the world's frontier models. The company revealed the model, offered as a preview build called...
Moonshot's upcoming Kimi 3 is expected to close the gap with Anthropic's Opus 4.8
The FT reports Kimi K3 will be the largest open AI model from China, with a parameter count between 2 trillion and 3 trillion.
1Password brings secure credential access to Anthropic's Claude
Identity security company 1Password today launched 1Password for Claude, a browser integration that lets Anthropic PBC's Claude use a person's stored logins to complete online tasks without those credentials ever reaching the artificial intelligence model. The tool targets a problem that has...
Microsoft is reportedly training salespeople to talk down OpenAI and Anthropic
Microsoft is looking to sell its in-house AI model as more efficient and cost-effective than its competitors' models.
Inside Ode with Anthropic, the startup betting AI services are the future of enterprise
Can a handful of engineers really do the work of an army of consultants? That's the bet behind Ode with Anthropic - the joint venture dedicated to embedding...
Anthropic, Blackstone bet the next trillion-dollar AI business is implementation, not just models
Anthropic-backed Ode launches as AI labs bet that embedding forward-deployed engineers inside enterprises is the key to accelerating enterprise AI adoption.
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...
Anthropic starts localizing Claude pricing for India, its biggest market after the US
Claude users in India are starting to see Indian rupee-denominated subscription plans.
AI model mania and the new chip gold rush
Just when you thought the artificial intelligence model race might slow down, it starts up again double-time. This week alone brought new models and related services from OpenAI (twice), Meta (also twice), SpaceXAI, Anthropic and a raft of Chinese companies. And Microsoft, which released a flurry...
Cerebras Systems positions inference speed as the defining edge in AI infrastructure
The race to build the fastest AI infrastructure is reshaping the semiconductor industry, with inference speed emerging as the defining competitive dimension of the AI era. As AI model wars intensify across OpenAI, Anthropic and Google, the underlying compute layer is under pressure to keep pace...
Anthropic, OpenAI, and SpaceX are bigger than the last 25 years of tech exits
Three big AI IPO are set to generate more value than all the U.S. VC-backed exit since 2000.
GLM 5.2: a new rise of open-weight agentic models
On June 16th, Z.ai released GLM 5.2, its latest flagship model. At the time of announcement, it advertised scores at or near Anthropic and OpenAI's models, and far ahead of GLM 5.1. In the world of usable, deployable, and reliable AI model, however, the benchmarks matter, but don't paint the...
SpaceXAI's newest AI model Grok 4.5 dramatically undercuts Anthropic and OpenAI on price
Elon Musk's SpaceXAI Corp. has released a new model called Grok 4.5, in what is its first major launch since it went public a few weeks earlier. In a blog post earlier today, the company said Grok 4.5 is designed to be a workhorse that can tackle all of the usual tasks that the artificial [...]...
Microsoft is reportedly ditching OpenAI's and Anthropic's AI models in favor of its own to cut costs
Microsoft Corp. is reportedly transitioning away from using OpenAI Group PBC's and Anthropic PBC's most advanced artificial intelligence models in favor of its own - increasingly leaning on the new Microsoft AI or MAI model family, despite publicly asserting that those models aren't as...
Why the rise of open source AI isn't hurting Anthropic ... yet
Open source models' success isn't coming at the expense of frontier labs. Instead, they each seem to capture two phases of the same life cycle.
Anthropic brings Cowork out of the desktop and onto web and mobile
Anthropic PBC today announced it's bringing its Claude Cowork agentic artificial intelligence assistant to mobile and the web, breaking it free from the desktop. Cowork allows users to harness the company's most powerful AI model to do work across files, calendar, email, messaging apps, the web...
Anthropic brings Claude Cowork to mobile and web as usage data shows most users aren't coding
Anthropic on Tuesday launched Claude Cowork on mobile and web , expanding a tool that has quietly become the company's bridge between the developer-centric...
Shut Those Laptops! Anthropic Puts Its Claude Cowork Agent on Your Phone
Claude Cowork now keeps working on tasks even after you close your laptop. It's part of a larger push toward smartphone-controlled agents.
Radware adds Claude Code protection and compliance reporting to agent security
Application and network security company Radware Ltd. today expanded its Agentic AI Protection product with compliance reporting, deeper visibility into artificial intelligence agent activity, and new protection for agents that run directly on developer machines, including Anthropic PBC's Claude...
Anthropic inks $19B AI data center lease with TeraWulf
Anthropic PBC will pay $19 billion to lease a TeraWulf Inc. data center for 20 years. TeraWulf, a Nasdaq-listed developer of artificial intelligence infrastructure, announced the deal today. The company's shares rose 4.8% on the news. The data center that Anthropic has agreed to lease is...
When the sovereign AI diagnosis goes prime time
Palantir Technologies Inc. Chief Executive Alex Karp went on CNBC this week and delivered what one outlet generously called a "televised nervous breakdown." He called the artificial intelligence industry "effing insane." Karp (pictured) also accused OpenAI Group PBC and Anthropic PBC of running a...
Alex Karp, frontier models and the real fight for Enterprise AI
Palantir Technologies Inc. Chief Executive Alex Karp's recent broadside against the frontier model vendors put a knife to the throat of the central enterprise artificial intelligence debate. Karp's argument is that frontier model vendors (he didn't mention Anthropic and OpenAI by name) intend to...
OpenAI offers feds a stake, Anthropic gets out of AI model jail and Meta wants to be a neocloud
OpenAI reportedly has floated giving the U.S. government a 5% stake in the company, perhaps the start of a series of such stakes in other AI companies as well. This no doubt has traditional anti-industrial-policy Republicans, all apparently dead now, spinning in their graves, because it's a dumb...
Anthropic reportedly in talks with Samsung to manufacture custom AI chip
Anthropic PBC is reportedly in talks with Samsung Electronics Co. to produce a custom artificial intelligence chip. The Information today cited sources as saying that the discussions are in an early stage. According to the publication, Anthropic has not yet finalized key details such as what...
Can Cursor Remain a Platform for OpenAI and Anthropic's Models Inside SpaceX?
Cursor hopes to continue offering third-party AI model after it's acquired by SpaceX, testing the relationships between frontier AI labs.
Microsoft launches its own AI deployment company with $2.5 billion commitment
Microsoft follows Amazon, OpenAI, and Anthropic with its new AI deployment group.
Exabeam doubles AI detection coverage and adds Anthropic Claude support
Behavior intelligence company Exabeam Inc. today expanded its security operations platform with new capabilities for detecting and investigating artificial intelligence agents, doubling its AI-focused detection coverage to 90 and adding monitoring support for Anthropic PBC's Claude. The update...
The Trump Administration Is Lifting Its Export Controls on Anthropic's Mythos and Fable AI Models
The White House is easing restrictions on Anthropic's most advanced AI model weeks after ordering the company to suspend access for foreign nationals.
Anthropic launches Claude Sonnet 5 at a steep discount to its top model as the company races toward a blockbuster IPO
Anthropic today released Claude Sonnet 5 , a new AI model that the company says delivers near-flagship performance at mid-tier prices - a move designed to...
Amazon launches new $1 billion FDE org, following OpenAI and Anthropic
Engineers on the new team will embed within companies to deploy purpose-built agents, focusing on fast deployments and customer self-sufficiency.
Anthropic is discussing a new custom chip with Samsung
The news comes about a week after OpenAI announced its own custom AI chip in a partnership with Broadcom.
Building tech in the world's secret R&D hub
Apple. Anthropic. Disney Research. Google. Meta. Microsoft. NVIDIA. OpenAI. Few places outside Silicon Valley can claim R&D hubs from all of these companies...
DeepSeek open sources DSpark, a new framework to speed up LLM inference by up to 85%
Even as the geopolitical conversation around AI continues to grow more fraught following the U.S. government's actions to limit the new models from Anthropic...
How People in China Keep Outsmarting Anthropic's Geolocation Restrictions
As Anthropic tightens restrictions on access to Claude in China, users keep finding new workarounds, from proxy services to fake identities sourced on Telegram.
After betting the firm on Anthropic, Menlo Ventures raises victorious $3B fund
Menlo has created a solid rep for itself as an AI investor, all based on one gutsy $750 million move in 2024.
Anthropic Backer Menlo Ventures Raises $3B In New Funds To Back AI Startups Across Stages
Venture firm Menlo Ventures has raised $3 billion across two new funds, the largest capital raise in its 50-year history, to invest in AI startups from seed...