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Statement from Dario Amodei on our discussions with the Department of War
A statement from Anthropic CEO Dario Amodei on our discussions with the Department of War and national security uses of AI.
Anthropic
Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.
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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 Fable 5
Today we’re launching Claude Fable 5: a Mythos-class model that we’ve made safe for general use.
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Claude Opus 4.6
We're upgrading our smartest model. Across agentic coding, computer use, tool use, search, and finance, Opus 4.6 is an industry-leading model.
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Claude 3.7 Sonnet and Claude Code
Today, we’re announcing Claude 3.7 Sonnet, our most intelligent model to date and the first hybrid reasoning model generally available on the market.
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Claude 4
Discover Claude 4's breakthrough AI capabilities. Experience more reliable, interpretable assistance for complex tasks across work and learning.
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Claude Opus 4.7
Claude Opus 4.7 is now generally available, with notable gains over Opus 4.6 in advanced software engineering and the most difficult tasks.
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Claude Opus 5.5
Claude Opus 5.5 leads in agentic coding and knowledge work, and costs 40% less to run than Opus 5 on typical workloads.
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Claude Opus 5
Opus 5 is a step change improvement for the Opus tier powering long-running agents while delivering improvements in coding and professional work.
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Claude Opus 4.8
Claude Opus 4.8 brings stronger performance across coding, agentic tasks, and professional work, and the consistency to handle long-running work.
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Claude Sonnet 4.5
Claude Sonnet 4.5 is the best coding model in the world, strongest model for building complex agents, and best model at using computers.
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Computer use, a new Claude 3.5 Sonnet, and Claude 3.5 Haiku
A refreshed, more powerful Claude 3.5 Sonnet, Claude 3.5 Haiku, and a new experimental AI capability: computer use.
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Claude Fable 5.1 and Claude Mythos 5.1
Our most advanced models for coding and knowledge work. Their research capabilities also offer an early glimpse of how AI models will contribute to scientific progress.
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Claude Sonnet 4.6
Claude Sonnet 4.6 is a full upgrade of the model’s skills across coding, computer use, long-reasoning, agent planning, knowledge work, and design.
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Claude Sonnet 4 now supports 1M tokens of context
Claude Sonnet 4 now supports up to 1 million tokens of context—a 5x increase that lets you process entire codebases, synthesize extensive document sets, and build agents that maintain coherence across hundreds of tool calls.
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Claude Sonnet 5
Our most agentic Sonnet yet, with top-tier intelligence for coding and everyday professional work.
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Statement on the comments from Secretary of War Pete Hegseth
Anthropic's response to the Secretary of War and advice for customers
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Claude Opus 4.5
Claude Opus 4.5 is our new flagship model, with state-of-the-art coding and agentic performance at lower pricing.
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Claude Haiku 5.5
Claude Haiku 5.5 is our fastest, most capable small model. Built for high-volume work like summarization, subagents, and browser use.
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Claude 3 model family
The Claude 3 model family—Haiku, Sonnet, and Opus—sets new industry benchmarks across a wide range of cognitive tasks.
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Claude Fable 5.2 and Mythos 5.2
Claude Fable 5.2 and Claude Mythos 5.2, our new models for the hardest technical challenges. Fable 5.2 sets a new bar in coding, finance, and the sciences.
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100K Context Windows
Claude's context window expands from 9K to 100K tokens, roughly 75,000 words, letting it process hundreds of pages in under a minute.
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Sonnet 5.5
Claude Sonnet 5.5 is a clear upgrade over Claude Sonnet 5, runs 30%+ faster, and costs up to 30% less for most work.
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Claude Opus 4.1
Claude Opus 4.1 is an upgrade over Opus 4 in agentic tasks, real-world coding, and reasoning.
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Claude Skills
Claude can now use Skills to improve how it performs specific tasks. Skills are folders that include instructions, scripts, and resources that Claude can load when needed. Claude will only access a skill when it's relevant to the task at hand.
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Updates to Consumer Terms and Privacy Policy
Claude Free, Pro, and Max users can now opt in to having conversations used to improve models, with a five-year retention period for participants.
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Claude Haiku 4.5
Claude Haiku 4.5, our latest small model, is available today to all users.
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Claude 3.5 Sonnet
Introducing Claude 3.5 Sonnet—our most intelligent model yet. Sonnet now outperforms competitor models and Claude 3 Opus on key evaluations, at twice the speed.
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Where things stand with the Department of War
A statement from Dario Amodei
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Anthropic raises $13B Series F
Anthropic has completed a $13 billion Series F led by ICONIQ, co-led by Fidelity and Lightspeed, valuing the company at $183 billion post-money.
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The Anthropic Economic Index
Announcement of the new Anthropic Economic Index and description of the new data on AI use in occupations