New on the Anthropic Engineering blog: writing effective tools for LLM agents. AI agents are only as powerful as the tools we give them. So how do we make those tools more effective? We share our best tips for developers:
@anthropicai
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California SB 53: Thoughtful AI governance framework debate
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The question is whether we’ll develop AI governance thoughtfully today, or reactively tomorrow. SB 53 offers a solid path toward the former. We encourage California to take it. Read more:
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Anthropic Endorses California AI Regulation Bill SB 53
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Anthropic is endorsing California State Senator Scott Wiener’s SB 53. This bill provides a strong foundation to govern powerful AI systems built by frontier AI companies like ours, and does so via transparency rather than technical micromanagement.
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Federal AI Safety Regulation vs State Patchwork Approach
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Frontier AI safety is best addressed at the federal level instead of a patchwork of state regulations. But powerful AI advancements won’t wait for consensus in Washington.
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Anthropic reaches $5 billion revenue in record growth
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We started 2025 at $1 billion in run-rate revenue and passed $5 billion just eight months later. This makes Anthropic one of the fastest-growing technology companies in history.
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AI Company Raises $13B at $183B Valuation
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We've raised $13 billion at a $183 billion post-money valuation. This investment, led by @ICONIQCapital
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Government Leaders Shape AI and Nuclear Security Strategy
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Members have collectively led major intelligence agencies, directed nuclear security operations, and shaped national technology strategy at the highest levels of government. Read more:
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Anthropic Launches National Security Advisory Council for AI Leadership
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We're announcing the Anthropic National Security and Public Sector Advisory Council, a bipartisan group of defense, intelligence, and policy experts who will help us support the U.S. government and closely allied democracies in maintaining our AI leadership.
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Anthropic Addresses AI Cybercrime Threat Intelligence Disruption
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Watch Jacob Klein and Alex Moix from Anthropic's Threat Intelligence team discuss what Anthropic is doing to disrupt AI cybercrime:
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Malicious Actors Adapting to Exploit Advanced AI Capabilities
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Malicious actors are adapting to exploit AI’s most advanced capabilities. We're sharing these findings to strengthen collective defenses across the industry. Read more: