Anthropic hits $965 billion valuation, surpassing OpenAI

2026-05-28 · Source: Semafor · Field: Technology & Digital — Artificial Intelligence & Machine Learning, Cloud Computing & IT Infrastructure, Cybersecurity & Data Privacy · Depth: Fundamental Awareness, extended

Summary

Anthropic recently achieved a \$965 billion valuation, surpassing OpenAI as the most valuable AI startup, following a new funding round and the rapid release of its Claude Opus 4.8 model just 41 days after its predecessor. This rapid advancement coincides with reports that the US National Security Agency is reportedly using Anthropic's unreleased Mythos AI model for offensive hacking, leveraging its powerful ability to detect software vulnerabilities. Simultaneously, Anthropic, Google DeepMind, and OpenAI CEOs jointly warned about AI's potential for creating bioweapons, with Anthropic specifically calling for a development slowdown due to models like Claude now writing 80% of its own code and exhibiting "recursive self-improvement." The AI sector also saw Chinese phenom DeepSeek secure a \$7.4 billion funding round at a \$52 billion valuation, challenging Silicon Valley with aggressive pricing. However, the AI buildout faces mounting challenges, including ballooning data center energy demands and growing public opposition, exemplified by a California city's ban on new data center construction.

Key takeaway

For technology executives and investors navigating the AI landscape, you must balance aggressive innovation with critical safety and infrastructure considerations. While Anthropic's \$965 billion valuation and rapid model releases signal immense market potential, the reported NSA use of Mythos and collective CEO warnings on bioweapons underscore escalating risks. Your strategic planning should integrate robust AI safety protocols and anticipate growing public and regulatory scrutiny over data center energy consumption and construction, potentially impacting expansion plans and operational costs.

Key insights

Rapid AI advancement creates unprecedented value and capabilities, but also critical safety risks and infrastructure demands.

Principles

• AI models exhibit recursive self-improvement.
• Frontier AI poses bioweapons development risks.
• Public sentiment against AI infrastructure is rising.

Method

Anthropic advocates slowing AI development for safety. US government mandates voluntary frontier model safety inspections. DeepSeek uses aggressive pricing to compete.

In practice

• Utilize new AI coding and finance tools.
• Assess AI's energy demands for infrastructure.
• Explore competitive open-source AI models.

Topics

• Artificial Intelligence
• AI Safety
• AI Investment
• Data Centers
• National Security
• Geopolitics of AI

Best for: CTO, VP of Engineering/Data, Director of AI/ML, Executive, Investor, Policy Maker

Related on AIssential

• Anthropic reaches valuation of $965bn, beating OpenAI to become world’s most valuable AI firm — Anthropic's \$965 billion valuation highlights the strategic advantage of combining enterprise AI focus with strong AI safety and regulatory advocacy.
• The Dark Side of Anthropic’s Growth — Anthropic's rapid commercial growth creates fundamental tensions with its founding AI safety and ethical commitments.
• What’s behind Anthropic’s $65B raise? — The AI sector faces a complex dynamic of hyper-growth, escalating costs, infrastructure strain, and critical safety concerns, alongside geopolitical competition.
• OpenAI Tops $850 Billion Valuation — AI companies are securing massive funding and preparing for IPOs amidst market shifts and security challenges.
• Anthropic files to go public as AI startups race to hit markets — Rapid AI advancement fuels massive market growth but intensifies critical safety, ethical, and infrastructure challenges globally.
• Anthropic raises $65B in Series H funding at $965B post-money valuation — Anthropic's massive Series H funding and valuation reflect strong enterprise adoption and strategic compute expansion for its Claude AI models.

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Editorial summary, takeaway, and curation by AIssential. Original article published by Semafor.