How the fellowship works

Apply with the biggest problem in your field. If you’re selected, you spend ten weeks pushing it forward with frontier AI, then show the results at Demo Day.

  1. Set a goal

    Pick one result to move this week. A concrete build, not a vague intention.

  2. Learn from the frontier

    Researchers and operators from AI labs and science-AI companies share the workflows they actually use and ship.

  3. Build with our support

    Work from a skills library that’s yours to keep, with perks from our AI partners and 1:1s with us to unblock broken agent loops.

  4. Demo at office hours

    YC-style group office hours: show what changed, get pushback from other fellows, and take ideas from one lab to another.

Dates
March to May 2027Application deadline: January 24, 2027.
Format
10 weeks onlineKickoff and Demo Day: 2 days each in SF.
IP
You keep your IPYour research and work stay yours.
Program fee
No fee. No equity.A public good for science, thanks to our supporters.

Apply for Cohort 2

Your scientific ambition.
Our AI expertise.

Bring the problem and your knowledge of the field. We’ll work alongside you for ten weeks to accelerate your research.

Set a goal

Learn from the frontier with us. We help you turn new possibilities into a concrete research goal.

Choose the right problem

We help you choose a hypothesis or use case where AI can make a real difference, then set a concrete goal.

Learn from Frontier

Guest speakers from frontier AI labs and startups show what’s possible. Explore real use cases and find new ideas for your research.

Meet previous guest speakers

Build with our support

We help you build and get unstuck. Demo at office hours each week, and we’ll help you choose the next step.

Credits from Top AI Providers

AI credits to test more ideas, run larger analyses, and keep experimenting.

AI skills library

You don’t start from scratch. Adapt reusable AI skills and workflows to your research, and keep them after the fellowship.

Forward-deployed AI engineer

Get 2 hours every week of hands-on help to build AI tools and workflows for your research, solve technical problems, and keep moving.

1:1 office hours and support

Work with us to sharpen your goals, think through roadblocks, and stay accountable to your research ambitions.

Weekly office hours

Present your progress at the end of every week. Get thoughtful critique, see what others are building, and take new ideas back to your work.

At the end of the fellowship

Demo Day

Present what you built, discovered, and will pursue next to scientists, AI researchers, and investors. We help you prepare your talk.

See Cohort 1 outcomes

Published case study

Your research, under your name. We help you write up your problem, approach, and findings so others can read your work and build on it.

See Cohort 1 Case Studies

DEMO DAY PARTICIPANTS FROM

Cohort 2 schedule*

Your 2027 journey, from the first conversation to your work in public.

  1. January 24th

    Application deadline

    Tell us about your scientific problem and ambition.

  2. February

    Interviews

    Explore your goals with us. Fellows are selected in February.

  3. March

    Kickoff

    2 days in person in SF

    Meet your cohort and set your first research goal, then continue online.

  4. March to May

    10-week program

    Online

    Build on your own research with talks, hands-on support, and weekly demos.

  5. May

    Demo Day

    2 days in person in SF

    Return to share what you built and discovered with a wider audience.

  6. May

    Publication

    Turn your work into a published case study with our help.

* Exact dates for interviews and the program will be announced.

Apply by January 24

Beyond the cohort

Become part of a curated community of scientists building with AI, long after the 10‑week fellowship ends.

Meet previous fellows

Collaborators

Who Should Apply?

Pixel-dithered close-up portrait of Marie Curie, 1911.

You’re an Academic Researcher.

You’re pursuing a PhD, deep in a postdoc, or leading a lab. Your days revolve around experiments, papers, and a scientific question you can’t leave alone.

Pixel-dithered close-up of Katharine Burr Blodgett examining a sample in her laboratory.

You’re an Industry Scientist.

You do R&D in biotech, materials, energy, or another scientific field. You know the satisfaction of a good experiment, and the questions that come with an unexpected result.

Pixel-dithered close-up portrait of a young Thomas Edison, circa 1878.

You’re a Deep Tech Founder.

You’re building a company around hard science. You move between research questions, early prototypes, and the challenge of turning a discovery into something people can use.

Apply for Cohort 2

FAQ

When is Cohort 2?

March to May 2027. Applications are open now and reviewed on a rolling basis until the January 24, 2027 deadline. Interviews run in February, the program starts in March, and it ends with Demo Day in May.

Who can apply?

Scientists, engineers, and researchers across domains: academic, industry, or deep tech startups. Teams are encouraged to apply together: the program is for the people doing the work, not only the person with the title.

How are fellows selected?

Apply with the biggest problem in your field. We review every application and interview the strongest, usually one or two calls before a fast decision. We select for the size of your scientific ambition and your urgency to put AI to work on it.

How much time does it take?

Ten weeks, and every week counts. Each one has a goal, a session with researchers from AI labs, 1:1 time with us and YC-style group office hours, plus serious build time on your own research. Fellows who protect the hours get the results; there is no passive version of this.

Is it remote or in person?

Hybrid. Live sessions run online throughout the program, with in-person time for the cohort.

Is there a program fee?

No. Reactorfield is free and non-dilutive, supported as a public-good initiative to accelerate science.

Do you take IP?

No. You keep all your IP. We don't train on your data, it's all yours.

Do I need to be an AI expert?

No. You need depth in your own science and a willingness to rebuild how you work. We close the gap between what frontier models can do and how you use them. That is the whole point of the program.

What do I leave with?

Ten weeks of results on your own problem, shown at Demo Day and written up in a published case study. A skills library and workflows that run on your questions and your data, the judgment to keep them current as the tools change, and a cohort of peers across deep tech who share what works.

Why is it called Reactorfield?

Reactorfield is like magnetic field and gravitational field. A field that accelerates and transforms what interacts with it. We engineered Reactorfield as a space that catalyzes reactions and triggers inflections. We tip our hat to physics; the laws of the universe are our only true bounds. (and also because we're nerds)

Apply for Cohort 2

Applications are reviewed on a rolling basis until January 24, 2027.

Start your application