Anthropic STEM Fellow

Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI syst...

Some of our world's grand challenges, from resolving long-open problems in mathematics to designing medicines for neglected diseases, require deep expert judgment that today's AI still lacks. We're working toward an AI scientist, a system capable of the long-horizon reasoning and experimental judgment needed to push...

The Anthropic STEM Fellows Program brings researchers and experts from across science and engineering into Anthropic for four months to take on the grand challenges of their fields with Claude. Working in small pods of Fellows from related fields, you will pair deep domain expertise with our frontier models and inte...

Setting grand challenges for your field: identifying long-horizon open problems where Claude falls short of expert judgment, and defining what real progress on them looks like.
Building comprehensive datasets, simulations and rigorous, hard-to-game evaluations that test whether models can plan experiments, interpret data and reason about mechanisms, and systematically finding where they're confidently wrong.
Applying Claude to open problems in your domain, using test-time compute strategies and integrating the scientific tools and software your field relies on.

Are excited about the potential for AI to reason well about hard questions in their field where expert judgment matters.
Hands-on experience using Claude and Claude Code in your day-to-day workflow.
Hold a PhD in a STEM field and have several years of experience (eg post-doc or faculty).
Are comfortable working in a fast-paced, high-agency atmosphere for a few months and delivering concrete results.
Existing authorization to work in the United States for the duration of the program.
The program runs from January 12th to May 8th 2027, and is full-time for the duration; some fellowships may be considered for an extension. 
Applications are open until October 28, 2026, and we plan to make offers by November 20th. Later stages will typically include a take-home exercise and conversations with our research team about your research interests and possible project directions.
We ask that all Fellows attend a one-week in-person orientation in San Francisco.
The default location is in San Francisco. We will consider remote engagements within the United States in certain circumstances.
We are not currently able to sponsor visas for fellows. To participate in the Fellows program, you need to have or independently obtain full-time work authorization in the United States.
This is a fixed-term contract position. Fellows are engaged through an employer of record, rather than employed directly by Anthropic.