Conceptual Reasoning Fellow

Key responsibilities

• Identifying key open problems in your field, assessing approaches to solving them, and using Claude to make progress on them.
• Identifying grand societal challenges which the expertise of your field is crucial for addressing, and assessing Claude’s strengths and weaknesses in tackling them.
• Designing evaluations and RL environments that test models in your field systematically, turning your expertise into working tests of how well Claude reasons in your field.
• Team up with other Fellows in your field to build environments that push Claude on the hardest, most judgment-heavy problems your discipline has to offer.

Minimum qualifications

• 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 (or are completing) a PhD in philosophy, cognitive science, economics, policy or law, or have equivalent research experience.
• 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.

Preferred qualifications

• Experience designing evaluations, benchmarks, datasets, or expert rubrics.
• Demonstrated expertise in your field, shown through research, scholarship, or expert-level analytical writing.

Logistics - Fellows

• 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 and potential mentors 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.
• This is a fixed-term contract position. Fellows are engaged through an employer of record, rather than employed directly by Anthropic.