Application Guide

How to Apply for Anthropic AI Security Fellow

at Anthropic

🏢 About Anthropic

Anthropic is a frontier AI research company focused specifically on building safe, interpretable, and steerable AI systems. Unlike many AI companies, they prioritize alignment, policy, and security as core components of their mission, making them unique for those who want to work on AI safety rather than just AI capabilities. Their explicit focus on beneficial AI for society attracts researchers who are concerned about AI's long-term impact.

About This Role

The Anthropic AI Security Fellow is a 4-month research fellowship where you'll work on empirical projects using external infrastructure (open-source models, public APIs) to accelerate defensive AI applications in cybersecurity. This role is impactful because it directly addresses the inflection point where AI models like Claude are becoming practical tools for discovering vulnerabilities and securing code, potentially shaping how AI is used defensively in real-world security contexts.

💡 A Day in the Life

A typical day involves designing and running experiments with open-source AI models or APIs to test security applications, analyzing results for potential vulnerabilities or defensive improvements, and collaborating with mentors to refine research direction. You'll spend significant time writing code, documenting findings, and preparing research for publication while staying updated on the latest AI security developments.

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🎯 Who Anthropic Is Looking For

  • Has strong technical skills in AI/ML and cybersecurity, with experience using open-source models or APIs for practical applications
  • Demonstrates independent research ability and can propose empirical projects aligned with Anthropic's AI security priorities
  • Shows genuine interest in AI safety and alignment, not just AI capabilities, with awareness of the ethical considerations in frontier AI
  • Can work remotely with minimal supervision while producing publishable research within the 4-month fellowship timeline

📝 Tips for Applying to Anthropic

1

Explicitly mention your experience with open-source AI models or public APIs in cybersecurity contexts, as the fellowship emphasizes external infrastructure

2

Propose a specific empirical research project idea in your application that aligns with Anthropic's stated priority of 'defensive use of AI to secure code and infrastructure'

3

Reference Anthropic's specific concerns about AI harm (mentioned in their career review link) to show you've deeply considered their safety focus

4

Highlight any previous work that demonstrates your ability to produce publishable research within a constrained timeline

5

Note your availability for specific cohorts (July 2026 or beyond) since applications are rolling and the May 2026 cohort is closed

✉️ What to Emphasize in Your Cover Letter

["Your specific interest in AI security (not just general AI/ML) and how it relates to Anthropic's mission of building safe, interpretable systems", 'Concrete examples of your experience with empirical research using AI models for security-related tasks', "Why you're drawn to the fellowship structure (4-month focused research with mentorship) rather than a traditional employment role", 'How your background prepares you to work independently on a publishable project using external AI infrastructure']

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🔍 Research Before Applying

To stand out, make sure you've researched:

  • → Read Anthropic's research papers on AI safety and interpretability (available on their website) to understand their technical approach
  • → Review their AI Security blog posts or announcements about Claude's cybersecurity capabilities
  • → Study the 80,000 Hours career review they referenced to understand their concerns about AI harm
  • → Look into their previous fellows' research outputs or publications to understand project expectations
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💬 Prepare for These Interview Topics

Based on this role, you may be asked about:

1 Your proposed empirical research project and how it addresses defensive AI applications in cybersecurity
2 Technical questions about using open-source models or APIs for security tasks (e.g., vulnerability discovery, code analysis)
3 Your understanding of AI safety concerns specific to frontier models and how defensive AI might mitigate risks
4 How you would approach a 4-month research timeline to produce publishable results
5 Your thoughts on Claude's performance in cybersecurity competitions and practical applications of AI for security
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⚠️ Common Mistakes to Avoid

  • Focusing only on AI capabilities without addressing safety, alignment, or security concerns
  • Proposing theoretical research rather than empirical projects using practical AI tools
  • Applying with generic AI/ML experience without demonstrating specific cybersecurity applications or interest
  • Missing the January 12, 2026 deadline or not specifying cohort availability

📅 Application Timeline

This position is open until filled. However, we recommend applying as soon as possible as roles at mission-driven organizations tend to fill quickly.

Typical hiring timeline:

1

Application Review

1-2 weeks

2

Initial Screening

Phone call or written assessment

3

Interviews

1-2 rounds, usually virtual

✓

Offer

Congratulations!

Ready to Apply?

Good luck with your application to Anthropic!

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