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Anthropic confidentially submits draft S-1 to the SEC
Anthropic has confidentially submitted a draft S-1 registration statement to the Securities and Exchange Commission
Anthropic
Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.
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- #7 company
Visit anthropic.com → On Hacker News May 2023 – Nov 2026
AI & Machine Learning 138Tech Industry & Business 59Software Engineering 30Security & Privacy 20Society, Policy & Culture 12Science & Space 12
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Claude 2.1
Claude 2.1 brings a 200K token context window, a 2x reduction in hallucination rates, beta tool use, and system prompts.
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Higher usage limits for Claude and a compute deal with SpaceX
We’ve raised Claude's usage limits and agreed a new compute partnership with SpaceX that will substantially increase our capacity in the near term.
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Claude is a space to think
Claude will remain ad-free. We explain why advertising incentives are incompatible with a helpful AI assistant.
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How AI assistance impacts the formation of coding skills
A randomized trial with 52 developers found AI assistance lowered comprehension scores, except when used for explanations rather than delegation.
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LLMs are making formal software verification feasible at a much larger scale
Claude formally proved security properties in the compiled code of 123 open-source libraries. Along the way, it found bugs that had eluded detection for years.
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A global workspace in language models
Interpretability research on Claude's internal thoughts.
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Anthropic raises $30B in Series G funding at $380B post-money valuation
Anthropic raised $30 billion, led by GIC and Coatue, with run-rate revenue of $14 billion and 500+ customers spending over $1 million annually.
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Decomposing language models into understandable components
Interpretability research decomposing a transformer layer into thousands of interpretable features that can steer model behavior.
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Claude 2
Claude 2 brings improved performance, a 100K token context window, and 2x better harmlessness, available via API and the claude.ai beta.
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Reasoning models don't always say what they think
Research from Anthropic on the faithfulness of AI models' chain-of-thought reasoning.
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Persona vectors: Monitoring and controlling character traits in language models
A paper from Anthropic describing persona vectors and their applications to monitoring and controlling model behavior.
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How University Students Use Claude
AI systems are no longer just specialized research tools: they’re everyday academic companions. As AIs integrate more deeply into educational environments, we need to consider important questions about learning, assessment, and skill development. Until now, most discussions have relied on surveys and controlled…
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A postmortem of three recent issues
A technical report on three bugs that intermittently degraded Claude's responses: what happened, why fixes took time, and what we're changing.
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Disrupting the first reported AI-orchestrated cyber espionage campaign
A report describing a highly sophisticated AI-led cyberattack and how we disrupted it.
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Natural Language Autoencoders: Turning Claude's Thoughts into Text
AI models like Claude talk in words but think in numbers. In this study, we train Claude to translate its thoughts into human-readable text.
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Anthropic raises $65B in Series H funding at $965B post-money valuation
Anthropic has raised $65 billion in Series H funding led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital.
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Labor market impacts of AI: A new measure and early evidence
We introduce "observed exposure," combining LLM capability with real Claude usage data, and share early evidence on employment effects.
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Early progress on accelerating drug development with Claude
Over the past several months, we’ve partnered with six organizations to accelerate curing disease. We’ve also started drug discovery efforts of our own, including programs for rare childhood forms of muscular dystrophy. In this post, we provide an update on our progress.
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Build and Host AI-Powered Apps with Claude – No Deployment Needed
Build and share AI-powered apps directly in Claude. Update: Now available on Team and Enterprise plans. (July 31, 2025) Update: Upload PDFs, images, and more into your artifact.
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Contextual Retrieval
Contextual retrieval improves how AI systems access and use information, reducing retrieval failures in large knowledge bases.
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Alignment faking in large language models
A paper from Anthropic's Alignment Science team on Alignment Faking in AI large language models
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Donating the Model Context Protocol and establishing the Agentic AI Foundation
Anthropic is donating the Model Context Protocol to the Linux Foundation's new Agentic AI Foundation, co-founded with Block and OpenAI.
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Anthropic expands partnership with Google and Broadcom for next-gen compute
Anthropic secures multiple gigawatts of next-generation TPU capacity starting in 2027, its largest compute commitment to date.
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How Anthropic teams use Claude Code
Teams across Anthropic use Claude Code for everything from debugging production issues and navigating unfamiliar codebases to building custom automation tools. Here's how.
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Learning more about Claude's mathematical capabilities
An unreleased Claude model improved the lower bound for the fraction of zeroes of the Riemann zeta function that satisfy the hypothesis, raising it from 41.6% to 67.2%.
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Project Vend: Can Claude run a small shop? (And why does that matter?)
We let Claude run a small shop in the Anthropic office. Here's what happened.
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Web search on the Anthropic API
Claude can now search the web through the API, giving users access to real-time information with citations for building up-to-date AI applications. Unknown block type "latestUpdates", specify a component for it in the `components.
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Claude Tag
Claude Tag is a new way for teams to work with Claude.
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Teaching Claude Why
New research on how we've reduced agentic misalignment