The Summer 2026 program will run from June through August. It will be largest MATS program to date with 120 fellows and 100 mentors. Fellows will be connected with mentors or organizational research groups, such as Anthropic's Alignment Science team, UK AISI, Redwood Research, ARC, and LawZero, to collaborate on a research project over the summer. Some fellows will be offered a 6+ month extension to continue this collaboration.
Applications are now closed.

Key dates for the application and admissions timeline
Applications typically open several months before the program begins. Applicants complete a multi-stage admissions process, beginning with a general application. Depending on the tracks, streams, and mentors they apply to, applicants may also complete additional evaluations such as interviews, work tests, coding assessments, or writing samples before final admissions decisions are made.
The main program is a 10 to 12 week full-time research fellowship. Fellows work closely with one or more mentors on independent research projects while participating in workshops, talks, office hours, and the broader MATS community. Research directions are developed collaboratively with mentors, with increasing independence throughout the program.
The extension phase typically begins approximately two weeks after the main program concludes. Fellows who demonstrate strong research potential during the main program may apply for a funded 6 to 12 month extension. Extension fellows continue developing independent research with ongoing mentorship and support, typically working from MATS offices or other approved research locations. In recent cohorts, roughly 80% of fellows who applied to the extension phase were accepted.
MATS aims to accelerate researchers who will:
MATS alumni have gone on to publish safety research, join alignment organizations, including Anthropic and MIRI, and found an alignment research lab. You can read more about MATS alumni here.
Each MATS stream brings together scholars and mentors around a shared research agenda. Streams vary in methodology and focus area, spanning topics such as interpretability, control, evaluations, governance, cybersecurity, and agent foundations.
We will continue working on black-box monitors for scheming in complex agentic settings, building on the success of the previous stream.
See here for details.
We have two weekly 60-minute calls by default. Since everyone will work on the same project, these calls will be with all participants of the stream. I respond on slack on a daily basis for asynchronous messages. Scholars will have a lot of freedom for day-to-day decisions and direction setting. In the best case, you will understand the project better than me after a few weeks and have a clear vision for where it should be heading. I recommend scholars focus 100% of their work time on the project and not pursue anything on the side. I think this way people will learn the most in MATS.
You will work on subprojects of black box monitoring. See here for details.
AI control focussed stream, probably running in-person in London.
I'm pretty hands-off. I expect scholars to fully take charge of the project, and update / consult me as needed. I do want my scholars to succeed, and am happy to advise on project direction, experiment design, interpreting results, decision-making / breaking ties, or getting unstuck.
During the program, we'll meet once a week to go through any updates / results, and your plans for the next week. I'm also happy to comment on docs, respond on Slack, or have additional ad hoc meetings when useful.
I'll propose ~5 projects for scholars to red-team, flesh out and decide on one to own. I'm also open to scholar-proposed projects if they sound promising; I'd just be less useful as an advisor.
Escalation risks from state perceptions of AI capability, AI-enabled targeting, AI-enabled decision manipulation, and the impact of AI integration into nuclear command and control.
Mentorship will mostly consist of calls, sorting through research ideas and providing feedback. I'll be up to review papers, and potentially to meet in person depending on timing.
Looking for intellectually curious and honest scholars, with some background on topics related to national security, game theory, or AI-enabled military and influence capabilities.
I'll talk through project ideas with scholar, or the scholar can pick from a list of projects
This stream focuses on AI policy, especially technical governance topics. Tentative project options include: technical projects for verifying AI treaties, metascience for AI safety and governance, and proposals for tracking AI-caused job loss. Scholars can also propose their own projects.
We'll meet once or twice a week (~1 hr/wk total, as a team if it's a team project). I'm based in DC, so we'll meet remotely. I (Mauricio) will also be available for async discussion, career advising, and detailed feedback on research plans and drafts.
No hard requirements. Bonus points for research experience, AI safety and governance knowledge, writing and analytical reasoning skills, and experience relevant to specific projects.
I'll talk through project ideas with scholar
This stream will focus on the science and development of model evaluations, especially monitorability and alignment evals.
I'll meet with scholars 2x/week each. I'll also be generally available async and potentially for code review.
Various profiles could be a good fit.
Wanted:
I'll provide a list of possible projects to pick from, and talk through the options before making a decision.
Scholars can also suggest their own projects.
Research papers (technical governance or ML) related to evaluating and mitigating dangerous AI capabilities, with a focus on what's actionable and relevant for AGI companies
I like to get daily standup messages about progress that has been made on the project, and I'm happy to provide some quick async feedback on new outputs. I'll also have weekly meetings. I'm based in Constellation in Berkeley.
Good writers/researchers who can work independently and autonomously! I'm looking for scholars who can ship a meaningful research output end-to-end and ideally have prior experience in writing relevant papers.
I may assign a project, have you pick from a list of projects, or talk through project ideas with you.
I'm interested in empirical projects that improve our ability to evaluate model capabilities or enable us to understand or evaluate model monitorability. An ideal project culminates in a research output (conference/Arxiv paper or research blogpost with artifacts).
Time commitments: I expect to not be able to spend more than 5 hours on any week.
Meetings: I expect to have project meetings weekly for about an hour, where we chat about your results from last week, the planned next steps, any blockers or uncertainties. We'll have a monthly overall project check-in about broader progress towards overall goals.
Help outside of meetings: I am available to provide some help most weeks outside of the meeting, but by and large I expect mentees to be self-directed and self-sufficient in solving problems.
An ideal mentee has a strong AI research (software engineering is a plus) background. It's important that they are self-motivated and can make weekly progress with little intervention. If you are interested in working on non-concretely scoped projects, I would expect mentees to have the ability to write well-scoped project proposals, with realistic planned milestones and deliverables. Evidence of successful projects here would be very helpful in evaluating this.
A mentee can be a PhD student and they can work on a paper that will be part of their thesis.
I will talk through project ideas with the scholar
Making society safe from AI doesn't just mean making safe AI: we're figuring out how to uplift human collective intelligence, manage a highly multiagent world, improve foresight and institutional competence, ideally learning how to make best positive use of frontier AI systems as we go. FLF has a small, sharp team of researchers with a wide network, and we're looking to nurture new and missing approaches to minimising large-scale risks while steering to a flourishing future.
Willing to devote a few hours per week to this - I'll keep a 30m or 1h slot available weekly, and interact on Slack circa daily. Some closer projects might be much more interactive.
Depends a lot on direction. Ideally be able to make proposals and dig into things somewhat independently. Be good at explaining your thinking, and able+willing to teach me things!
For collective intelligence/human reasoning, I'd usually want someone very familiar with software production, at least skilled in software development or in product management and prototyping. Other candidates with great vision can succeed here if they're able to work with complementary talent to get things going.
For foresight, any of: polymathic/multi-STEM/futurism background, deep expertise in bio and/or AI, natsec experience or connections, unusual writer/game dev talent, safety engineering background, other background that you think I might want to hear about.
For multiagent accountability: law, economics, politics, history, or a combination, plus some familiarity with AI and agents.
I'll ask for interests and (if you have them) a proposal or two right away. We'll spend the first week or two iterating that, discussing other options, and maybe trying out little experiments. Likely we'll pick a direction then, but it's also fine if we pivot later.
A track is a broad research area within MATS. Empirical, Theory, Strategy & Forecasting, Policy & Governance, Systems Security, Founder & Field-Building, and Biosecurity are our current tracks. Each track contains multiple streams. In Stage 1, you apply to tracks.
Streams are organized around a research agenda, led by one or more mentors who guide fellows through related projects. In Stage 2, applicants apply to streams within tracks based on research that interests them.
You may apply to as many tracks as you wish at Stage 1. At Stage 2, depending on which tracks you progress in, you may then apply to as many streams as you wish within those tracks; there is no cap. The process is comparable to applying to PhD supervisors.
We want to be flexible for applicants who have urgent prior commitments. Based on individual circumstances, we may be willing to alter the time commitment of the program and allow fellows to leave early or arrive late. Please inform us of your availability in the application process.
Applicants who will be 18 years or older before the program start date are eligible to apply. Both US and non-US citizens are eligible to apply. All backgrounds and levels of experience are welcome and prior AI safety experience is not required.
Yes. The 12-week program requires fellows to commit 40 hours per week to their MATS research. For exceptionally strong candidates with significant concurrent responsibilities, the time commitment can be reduced to 20 hours per week on a case-by-case review. However, the program maintains an expectation of sustained, high-level engagement, including regular participation in core activities and most organized events. Candidates that require a J1 visa to come to the US are unable to participate part time; they can only work part time if they participate remotely or from the UK.
Yes, upon submitting you will receive a link that lets you edit your response. Please note that you will not be able to edit your response once the application period ends.
LLMs may not be used to write any part of your application unless specific work tests or forms explicitly permit it. MATS monitors for LLM use, and applicants found to have used LLMs may be disqualified.
Depending on the evaluations of the tracks and streams you apply to in Stages 1 and 2, we will contact your references. We will send them a form with our own set of questions, so they will not have to prepare a reference letter.
Although MATS sometimes supports UC Berkeley-based mentors, MATS is an independent program and is not formally part of UC Berkeley. As such, MATS will not be providing student cards to our scholars.
The main program, or Research Phase, takes place in person in Berkeley, CA and London, UK. Historically, most fellows participate from Berkeley. London is typically chosen by fellows who want to co-locate with their mentor or who have a preference to work from the UK instead of US.Will this program be remote or in-person?
The main program, or the Research Phase takes place in Berkeley, CA and London, UK, with the majority of fellows participating from Berkeley. We strongly encourage in-person participation when possible, as a core part of the program experience comes from day-to-day interactions with your cohort and others in the broader AI safety ecosystem.
Decisions about remote participation are made on a case-by-case basis and depend primarily on mentor preferences, many of whom are open to the possibility, especially if you have family or other obligations that make in-person participation difficult. We strongly encourage in-person participation when possible, as a core part of the program experience comes from day-to-day interactions with your cohort and others in the broader AI safety ecosystem.
If you have difficulties in securing a visa to participate from Berkeley, we are likely to be able to support participation from our London office.The 6–12 month extension gives fellows the option to participate from Berkeley, London, or remotely.
MATS is a scientific and educational seminar and independent research program, and provides J1 visas for non-American participants. Participants can also opt to participate from our London office; however, please note that visa support is not available for that option.
During the main program, fellows should expect to meet with their mentor for at least one hour per week, with more frequent communication via Slack. The extent of mentor support will vary depending on the project and the mentor.
Fellows will also receive support from MATS’ Research Management team, who work with mentors by tracking scholar research progress, unblocking scholar research, and assisting with grant applications and deadlines.
Fellows develop as researchers by working with an experienced research mentor, interacting with other fellows, and receiving support from our Research Management team. Research managers meet weekly with most fellows and mentors and help with research strategy, research unblocking, and project coordination.
Other forms of training include workshops on different parts of the research process and seminars on a variety of AI technical safety and governance research.
Throughout the program, each fellow will work on an independent research project with input and guidance from your mentor(s). Depending on which stream you participate in, you may collaborate with other fellows in your stream.
Traditionally, fellows submit a Research Plan midway through the program and present their research at the Fellow Symposium at the end of the program.
We welcome feedback. For feedback for the whole team (visible by all MATS staff), please use this form. For feedback that will only be visible to the Co-Executive Directors, Ryan and Christian, please submit here.
You can contact the MATS Board of Directors using this linked form (responses are only viewable by the Board). Please only use this if you feel your question or concern requires board-level attention.