Streams in this track include hands-on research using machine- learning experiments to understand and improve model safety including AI control, interpretability, scalable oversight, evaluations, red-teaming, and robustness. This track is defined by its methods rather than any single research agenda. If your primary tool is ML engineering, this is the track for you.
The track is defined by its methodology more than by any single research agenda. Fellows run ML experiments to understand and improve the safety properties of frontier models, with work spanning interpretability, AI control, scalable oversight, evaluations, red-teaming, robustness, and model organisms of misalignment. The unifying thread is that progress comes from hands-on work with real models (training, probing, fine-tuning, measuring, etc.) rather than reasoning from first principles alone. This is the largest track in the program and the most common entry point into technical AI safety research.
We are looking for fellows whose primary tool is ML engineering, broadly construed. The essential requirement is the ability to design and run experiments on language models or other deep learning systems and iterate quickly on the results. In practice, that usually means having a solid understanding of Python (with and without AI coding tools), being comfortable with the infrastructure around running models at moderate scale, and knowing which experiments are worth running. Mission alignment is highly important, and fellows should be able to say why a given line of empirical work meaningfully reduces frontier risk, not just whether it yields a successful publication. Educational background and seniority are weighted lightly here relative to other tracks. Past cohorts have included strong fellows ranging from undergraduates to senior industry researchers.
Fellows are matched to mentors based on fit, and projects are scoped to produce concrete artifacts (i.e., papers, evaluation suites, open-source tooling, or technical reports) by the end of the program. The target audiences for the work produced in this track would include safety and alignment teams at frontier labs, governments and other evaluation organizations, and the broader ML research community.
If you are excited by this kind of work, we encourage you to apply.
This stream will focus on model motivations and character, open-ended environments, and new forms of misalignment.
This stream will focus on monitoring, stress-testing safety methods, and evals, with a focus on risks from scheming AIs. Examples include (black-box) AI control techniques, white-box monitors (probes etc.), chain-of-thought monitoring/faithfulness, building evaluation environments, and stress-testing mitigations.
For each project, we will have a weekly meeting to discuss the overall project direction and prioritize next steps for the upcoming week. On a day-to-day basis, you will discuss experiments and write code with other mentees on the project (though I'm available on Slack for quick feedback between meetings or to address things that are blocking you).
I structure the program around collaborative, team-based research projects. You will work in a small team, on a project from a predefined list. I organize the 12-week program into fast-paced research sprints designed to create and keep research velocity, so you should expect regular deadlines and milestones. I will provide a more detailed schedule and set of milestones at the beginning of the program.
I am looking for scholars with strong machine learning engineering skills, as well as a background in technical research. While I’ll provide weekly guidance on research, I expect scholars to be able to run experiments and decide on low-level details fairly independently most of the time. I’ll propose concrete projects to choose from, so you should not expect to work on your own research idea during MATS. I strongly encourage collaboration within the stream, so you should expect to work in teams of 2-3 scholars on a project, hence good communication and team skills are important.
We will most likely have a joint project selection phase, where we present a list of projects (with the option for scholars to iterate on them). Afterward, each project will have at least one main mentor, but we might also co-mentor some projects.
I'm open to quite a broad range of work. By default I expect scholars to work on reasonably conceptually-simple empirical projects, such as building capability or propensity evals.
Technical skills, experience building evals with inspect, or working on agents or fine-tuning models with tinker.
It's good if you have at least one completed AI safety project.
I'm interested in better understanding and controlling how post-training causes alignment-relevant behavior. This is a pretty broad area, and I’m open to many approaches to these problems! Potential areas of study / methods of attack might include model organisms, training run science/ablations, root causing strange behaviors, or studying how best to robustly induce behaviors or values or beliefs into models.
If you're a technical researcher who's been wondering if your work should be a company, this stream is for you.
I invest in AI safety and assurance startups at pre-seed, and I'll treat fellows the way I treat founders I'm considering backing: real diligence, honest feedback, introductions to people building in the space. The output should be a defensible answer to 'should this exist as a company, and am I the person to build it?
Required:
We are excited to supervise projects:
1. Study the causes and implications of situational awareness, and the role that meta-cognition plays in (multi-agent) alignment;
2. Contribute to LawZero's Scientist AI, in the form of contextualization and uncertainty estimation.
Essential knowledge:
Essential experience:
Desired experience:
Bonus:
Lee's stream will focus primarily on improving mechanistic interpretability methods for reverse-engineering neural networks.
Mentorship looks like a 1 h weekly meeting by default with approximately daily slack messages in between. Usually these meetings are just for updates about how the project is going, where I’ll provide some input and steering if necessary and desired. If there are urgent bottlenecks I’m more than happy to meet in between the weekly interval or respond on slack in (almost always) less than 24h. We'll often run daily standup meetings if timezones permit, but these are optional.
In general I'd like projects in my stream to at least be conceptually informed by parameter decomposition, manifolds, and minimum description length framings of interpretability, if not build on them directly.
Scholars and I will discuss projects and come to a consensus on what feels like a good direction. I will not tell scholars to work on a particular direction, since, in my experience, intrinsic motivation to work on a particular direction is important for producing good research.
This stream focuses on critical challenges in AI safety and alignment, including risks from automating AI research, bottlenecks to recursive self-improvement, and the automation of safety and alignment research. Priority topics also include AGI privacy, measuring long-horizon agentic capabilities, developing new alignment methods, and advancing the science of post-training.
I usually spend at least 30 min per week in one-on-one meetings with my mentees. We can also discuss longer time slots if necessary. Besides these time slots, I try to be as responsive as possible over Slack (>2 comprehensive responses per day) and read relevant papers between weekly meetings.
I would prefer to set the overall direction, but I will listen closely to scholars about their preferences within a broad direction. Converging on a particular topic is expected to be a collaborative process.
The MATS Program is a 10-week research fellowship designed to train and support emerging researchers working on AI alignment, transparency and security. Fellows collaborate with world-class mentors, receive dedicated research management support, and join a vibrant community in Berkeley focused on advancing safe and reliable AI. The program provides the structure, resources, and mentorship needed to produce impactful research and launch long-term careers in AI safety.
MATS mentors are leading researchers from a broad range of AI safety, alignment, governance, field-building and security domains. They include academics, industry researchers, and independent experts who guide scholars through research projects, provide feedback, and help shape each scholar’s growth as a researcher. The mentors represent expertise in areas such as:
Key dates
Application:
The main program will then run from September 28th to December 4th, with the extension phase for accepted fellows beginning in December.
MATS accepts applicants from diverse academic and professional backgrounds - from machine learning, mathematics, and computer science to policy, economics, physics, cognitive science, biology, and public health, as well as founders, operators, and field-builders without traditional research backgrounds. The primary requirements are strong motivation to contribute to AI safety and evidence of technical aptitude, research potential, or relevant operational experience. Prior AI safety experience is helpful but not required.
Applicants submit a general application, applying to various tracks (Empirical, Theory, Strategy & Forecasting, Policy & Governance, Systems Security, Biosecurity, Founding & Field-Building.
In stage 2, applicants apply to streams within those tracks as well as completing track specific evaluations.
After a centralized review period, applicants who are advanced will then undergo additional evaluations depending on the preferences of the streams they've applied to before doing final interviews and receiving offers.
For more information on how to get into MATS, please look at this page.