Trace

Center for Applied Rationality

rationality.org · organization

Berkeley nonprofit, CFAR, that teaches applied rationality through workshops.

Leadership

Team

7 people

source, Oct 2026

EA infrastructureOther existential riskOtherAI safety fieldbuilding

Received
$8,706,671
from 7 funders
Grants
31
Funders
7
Years active
2014–26

Grants over time

$0$1.0M$2.0M$3.0M20162017201820192020202120222023202420252026
Coefficient GivingJaan TallinnLong-Term Future FundJed McCalebAustin ChenAll others

Biggest funders

Coefficient Giving$4,314,00050%7
Jaan Tallinn$4,042,40046%17
Long-Term Future Fund$324,0214%2
Jed McCaleb$23,0000%1
Austin Chen$2,5000%1
Nick Tarleton$7500%1

Reviews

Zvi Mowshowitz · nonprofits.zone · full post · Nov 26, 2025

Confidence: High, Funding needs: High

Read more ▾

I am on the board of CFAR, so there is a direct and obvious conflict. Of course, I am on the board of CFAR exactly because I think this is a worthwhile use of my time, and also because Anna asked me. I’ve been involved in various ways since the beginning, including the discussions about whether and how to create CFAR in the first place.

CFAR is undergoing an attempted revival. There weren’t workshops for many years, for a variety of reasons including safety concerns and also a need to reorient. The workshops are now starting up again, with a mix of both old and new units, and I find much of the new material interesting and potentially valuable. I’d encourage people to consider attending workshops, and also donating.

To donate, click here, or reach out to contact@rationality.org.

Oliver Habryka · Long-Term Future Fund · full post · Oct 3, 2019

$150,000

Read more ▾

This grant was recommended by the Fund, but ultimately was funded by a private donor, who (prior to CEA finalizing its standard due diligence checks) had personally offered to make this donation instead. As such, the grant recommendation was withdrawn.

Oliver Habryka had created a full writeup by that point, so it is included below.

Help promising people to reason more effectively and find high-impact work, such as reducing x-risk.

top reported bottleneck

In our last grant round, I took an outside view on CFAR and said that, in terms of output, I felt satisfied with CFAR's achievements in recruitment, training and the establishment of communal epistemic norms. I still feel this way about those areas, and my writeup last round still seems like an accurate summary of my reasons for wanting to grant to CFAR. I also said that most of my uncertainty about CFAR lies in its long-term strategic plans, and I continue to feel relatively confused about my thoughts on that.

I find it difficult to explain my thoughts on CFAR, and I think that a large fraction of this difficulty comes from CFAR being an organization that is intentionally not optimizing towards being easy to understand from the outside, having simple metrics, or more broadly being legible [1]. CFAR is intentionally avoiding being legible to the outside world in many ways. This decision is not obviously wrong, as I think it brings many positives, but I think it is the cause of me feeling particularly confused about how to talk coherently about CFAR.

Considerations around legibility

Summary: CFAR’s work is varied and difficult to evaluate. This has some good features — it can avoid focusing too closely on metrics that don’t measure impact well — but also forces evaluators to rely on factors that aren’t easy to measure, like the quality of its internal culture. On the whole, while I wish CFAR were somewhat more legible, I appreciate the benefits to CFAR’s work of not maximizing “legibility” at the cost of impact or flexibility.

To help me explain my point, let's contrast CFAR with an organization like AMF, which I think of as exceptionally legible. AMF’s work, compared to many other organizations with tens of millions of dollars on hand, is easy to understand: they buy bednets and give them to poor people in developing countries. As long as AMF continues to carry out this plan, and provides basic data showing its success in bednet distribution, I feel like I can easily model what the organization will do. If I found out that AMF was spending 10% of its money funding religious leaders in developing countries to preach good ethical principles for society, or funding the campaigns of government officials favorable to their work, I would be very surprised and feel like some basic agreement or contract had been violated — regardless of whether I thought those decisions, in the abstract, were good or bad for their mission. AMF claims to distribute anti-malaria bednets, and it is on this basis that I would choose whether to support them.

AMF could have been a very different organization, and still could be if it wanted to. For example, it could conduct research on various ways to effect change, and give its core staff the freedom to do whatever they thought was best. This new AMF (“AMF 2.0”) might not be able to tell you exactly what they’ll do next year, because they haven’t figured it out yet, but they can tell you that they’ll do whatever their staff determine is best. This could be distributing deworming pills, pursuing speculative medical research, engaging in political activism, funding religious organizations, etc.

If GiveWell wanted to evaluate AMF 2.0, they would need to use a radically different style of reasoning. There wouldn’t be a straightforward intervention with RCTs to look into. There wouldn’t be a straightforward track record of impact from which to extrapolate. Judging AMF 2.0 would require GiveWell to form much more nuanced judgments about the quality of thinking and execution of AMF’s staff, to evaluate the quality of its internal culture, and to consider a host of other factors that weren’t previously relevant.

I think that evaluating CFAR requires a lot of that kind of analysis, which seems inherently harder to communicate to other people without summarizing one’s views as: "I trust the people in that organization to make good decisions."

The more general idea here is that organizations are subject to bandwidth constraints - they often want to do lots of different things, but their funders need to be able to understand and predict their behavior with limited resources for evaluation. As I've written about recently, a key variable for any organization is the people and organizations by which they are trying to be understood and held accountable. For charities that receive most of their funding in small donations from a large population of people who don’t know much about them, this is a very strong constraint; they must communicate their work so that people can understand it very quickly with little background information. If a charity instead receives most of its funding in large donations from a small set of people who follow it closely, it can communicate much more freely, because the funders will be able to spend a lot of their time talking to the org, exchanging models, and generally coming to an understanding of why the org is doing what it’s doing.

This idea partly explains why most organizations tend to focus on legibility, in how they talk about their work and even in the work they choose to pursue. It can be difficult to attract resources and support from external parties if one’s work isn’t legible.

I think that CFAR is still likely optimizing too little towards legibility, compared to what I think would be ideal for it. Being legible allows an organization to be more confident that its work is having real effects, because it acquires evidence that holds up to a variety of different viewpoints. However, I think that far too many organizations (nonprofit and otherwise) are trying too hard to make their work legible, in a way that reduces innovation and also introduces a variety of adversarial dynamics. When you make systems that can be gamed, and which carry rewards for success (e.g. job stability, prestige, etc), people will reliably turn up to game them [2].

(As Jacob has written in his post on Unconscious Economics, this doesn’t mean people are consciously gaming your system, but merely that this behavior will eventually transpire. The many causes of this include selection effects, reinforcement learning, and memetic evolution.)

In my view, CFAR, by not trying to optimize for a single, easy-to-explain metric, avoids playing the “game” many nonprofits play of focusing on work that will look obviously good to donors, even if it isn’t what the nonprofit believes would be most impactful. They also avoid a variety of other games that come from legibility, such as job applicants getting very good at faking the signals that they are a good fit for an organization, making it harder for them to find good applicants.

Optimizing for communication with the goal of being given resources introduces adversarial dynamics; someone asking for money may provide limited/biased information that raises the chance they’ll be given a grant but reduces the accuracy of the grantmaker’s understanding. (See my comment in Lynette’s writeup below for an example of how this can arise.) This optimization can also tie down your resources, forcing you to carry out commitments you made for the sake of legibility, rather than doing what you think would be most impactful [3].

So I think that it's important that we don't force all organizations towards maximal legibility. (That said, we should ensure that organizations are encouraged to pursue at least some degree of legibility, since the lack of legibility also gives rise to various problems.)

Do I trust CFAR to make good decisions?

As I mentioned in my initial comments on CFAR, I generally think that the current projects CFAR is working on are quite valuable and worth the resources they are consuming. But I have a lot of trouble modeling CFAR’s long-term planning, and I feel like I have to rely instead on my models of how much I trust CFAR to make good decisions in general, instead of being able to evaluate the merits of their actual plans.

That said, I do generally trust CFAR's decision-making. It’s hard to explain the evidence that causes me to believe this, but I’ll give a brief overview anyway. (This evidence probably won’t be compelling to others, but I still want to give an accurate summary of where my beliefs come from):

  • I expect that a large fraction of CFAR's future strategic plans will continue to be made by Anna Salamon, from whom I have learned a lot of valuable long-term thinking skills, and who seems to me to have made good decisions for CFAR in the past.
  • I think CFAR's culture, while imperfect, is still based on strong foundations of good reasoning with deep roots in the philosophy of science and the writings of Eliezer Yudkowsky (which I think serve as a good basis for learning how to think clearly).
  • I have made a lot of what I consider my best and most important strategic decisions in the context of, and aided by, events organized by CFAR. This suggests to me that at least some of that generalizes to CFAR's internal ability to think strategically.
  • I am excited about a number of individuals who intend to complete CFAR's latest round of instructor training, which gives me some optimism about CFAR's future access to good talent and its ability to establish and sustain a good internal culture.

Footnotes

[1] The focus on ‘legibility’ in this context I take from James C. Scott’s book “Seeing Like a State.” It was introduced to me by Elizabeth Van Nostrand in this blogpost discussing it in the context of GiveWell and good giving; Scott Alexander also discussed it in his review of the book . Here’s an example from Scott regarding centralized planning and governance:

The centralized state wanted the world to be “legible”, i.e. arranged in a way that made it easy to monitor and control. An intact forest might be more productive than an evenly-spaced rectangular grid of Norway spruce, but it was harder to legislate rules for, or assess taxes on.

[2] The errors that follow are all forms of Goodhart’s Law, which states that “any observed statistical regularity will tend to collapse once pressure is placed upon it for control purposes.”

[3] The benefits of (and forces that encourage) stability and reliability can maybe be most transparently understood in the context of menu costs and the prevalence of highly sticky wages.

Oliver Habryka · Long-Term Future Fund · full post · Apr 23, 2019

$150,000

Read more ▾

[Edit: It seems relevant to mention that LessWrong is currently receiving operational support from CFAR, in a way that makes me technically an employee of CFAR (similar to how ACE and 80K were/are part of CEA for a long time). However, LessWrong operates as a completely separate entity with its own fundraising and hiring procedures, and I don't feel any hesitation or pressure to critique CFAR openly because of that relation. Though I find myself a tiny bit more hesitant to speak harshly of specific individuals, simply because I am only working a floor away from the CFAR offices and that does have some psychological effect on me. Though the same was true for CEA while LessWrong was located in the CEA office for a few months, and was true for residents of my group house while LessWrong was located in the living room of my group house for most of the past two years, so I don't think this effect is particularly large.]

I think that CFAR’s intro workshops have historically had a lot of positive impact. I think they have done so via three pathways.

  • Establishing epistemic norms: I think CFAR workshops are quite good at helping the EA and rationality community establish norms about what good discourse and good reasoning look like. As a concrete example of this, the concept of Double Crux has gotten traction in the EA and rationality communities, which has improved the way ideas and information spread throughout the community, how ideas get evaluated, and what kinds of projects get resources. More broadly, I think CFAR workshops have helped in establishing a set of common norms about what good reasoning and understanding look like, similar to the effect of the sequences on LessWrong.
  • Training: A percentage of intro workshop participants (many of whom were already working on important problems within X-risk) have seen significant improvements in competence; as a result, they became substantially more effective in their work.
  • Recruitment: CFAR has helped many people move from passive membership in the EA and rationality community to having strong social bonds in the X-risk network.

While I do think that CFAR has historically caused a significant amount of impact, I feel hesitant about this grant because I am unsure whether CFAR can continue to create the same amount of impact in the future. I have a few reasons for this:

  • First, all of its founding staff and many other early staff have left. I broadly expect organizations to get a lot worse once their early staff leaves.
  • From recent conversations with CFAR, I’ve gotten a sense that the staff isn’t interested in increasing the number of intro workshops, that the intro workshops don’t feel particularly exciting for the staff, and that most staff are less interested in improving the intro workshops than other parts of CFAR. This makes it less likely that those workshops will maintain their quality and impact, and I currently think that those workshops are likely one of the best ways for CFAR to have a large impact.
  • I have a general sense that CFAR is struggling to attract top talent, partially because some of the best staff left, and partially due to a general sense of a lack of forward momentum for the organization. This is a bad sign, because I think CFAR in particular benefits from having highly talented individuals teach at their workshops and serve as a concrete example of the skills they’re trying to teach.
  • My impression is that while the intro workshops were historically focused on instrumental rationality and personal productivity, the original CFAR staff was oriented quite strongly around truth-seeking. Core rationality concepts were conveyed indirectly by the staff in smaller conversations and in the broader culture of the organization. The current staff seems less oriented around that kind of epistemic rationality, and so I expect that if they continue their current focus on personal productivity and instrumental rationality, the epistemic benefits of CFAR workshops will be reduced significantly, and those are the benefits I care about most.

However, there are some additional considerations that led me to recommending this grant.

  • First, CFAR and MIRI are collaborating on a set of programmer-focused workshops that I am also quite positive on. I think those workshops are less directly influenced by counterfactual donations than the mainline workshops, since I expect MIRI to fund them in any case, but they do still rely on CFAR existing as an institution that can provide instructors. I am excited about the opportunities the workshops will enable in terms of curriculum development, since they can focus almost solely on epistemic rationality
  • Second, I think that if CFAR does not receive a grant now, there’s a good chance they’d be forced to let significant portions of their staff go, or take some other irreversible action. CFAR decided not to run a fundraiser last fall because they felt like they’d made significant mistakes surrounding a decision made by a community dispute panel that they set up and were responsible for, and they felt like it would be in poor taste to ask the community for money before they thoroughly investigated what went wrong and released a public statement.

In the last year, I had some concerns about the way CFAR communicated a lot of its insights, and I sensed an insufficient emphasis on a kind of robust and transparent reasoning that I don’t have a great name for. I don’t think the communication style I was advocating for is always the best way to make new discoveries, but is very important for establishing broader community-wide epistemic norms and enables a kind of long-term intellectual progress that I think is necessary for solving the intellectual challenges we’ll need to overcome to avoid global catastrophic risks. I think CFAR is likely to respond to last year’s events by improving their communication and reasoning style in this respect (from my perspective).

My overall read is that CFAR is performing a variety of valuable community functions and has a strong enough track record that I want to make sure that it can continue existing as an institution. I didn’t have enough time this grant round to understand how the future of CFAR will play out; the current grant amount seems sufficient to ensure that CFAR does not have to take any drastic action until our next grant round. By the next grant round, I plan to have spent more time learning and thinking about CFAR’s trajectory and future, and to have a more confident opinion about what the correct funding level for CFAR is.

Grants received

Date ↓FunderViaAmountCauseSourcePurpose
Sep 2026Jaan TallinnSurvival and Flourishing Fund$5,000Other existential risksffGeneral support
Jan 28, 2026Nick TarletonManifund$750EA infrastructuremanifundaCFAR 2025/6 Fundraiser
Jan 28, 2026Austin ChenManifund$2,500EA infrastructuremanifundaCFAR 2025/6 Fundraiser
Dec 23, 2024Jaan TallinnSurvival and Flourishing Fund$100,000Otherjaan_onlineGeneral support for flexHEG prototyping
Dec 13, 2024Jaan TallinnSurvival and Flourishing Fund$100,000Otherjaan_onlineGeneral support for flexHEG prototyping
May 14, 2024Jaan TallinnLightspeed Grants$85,400Otherjaan_onlineGeneral support for Tushita Jha
May 14, 2024Jaan TallinnLightspeed Grants$15,000Otherjaan_onlineGeneral support for Tushita Jha
Dec 2022Jaan TallinnSurvival and Flourishing Fund$450,000EA infrastructuresffGeneral Support
Aug 2022Coefficient Giving$700,000EA infrastructurecoefficient_givingSPARC
Jul 2021Jaan TallinnSurvival and Flourishing Fund$1,207,000EA infrastructuresffGeneral Support
Dec 8, 2020Jaan TallinnFounders Pledge$39,000Otherjaan_onlineGeneral support
Dec 2020Jaan TallinnSurvival and Flourishing Fund$19,000EA infrastructuresffGeneral Support
Dec 2020Jed McCalebSurvival and Flourishing Fund$23,000EA infrastructuresffGeneral Support
Dec 2020Jaan TallinnSurvival and Flourishing Fund$212,000EA infrastructuresffGeneral Support
Feb 2020Coefficient Giving$375,000Other existential riskcoefficient_givingGeneral Support
Dec 4, 2019Jaan TallinnTallinn Community Fund$50,000Otherjaan_onlineGeneral support
Dec 2019Jaan TallinnSurvival and Flourishing Fund$150,000EA infrastructuresffGeneral Support
Sep 2019Jaan TallinnSurvival and Flourishing Fund$110,000EA infrastructuresffGeneral Support
Aug 18, 2019Jaan TallinnBerkeley Existential Risk Initiative$300,000Otherjaan_onlineGeneral support
Apr 2019Long-Term Future FundEA Funds$150,000AI safety fieldbuildingea_fundsUnrestricted donation
Jul 24, 2018Jaan TallinnBerkeley Existential Risk Initiative$300,000Otherjaan_onlineUnrestricted grant
Jul 2018Long-Term Future FundEA Funds$174,021AI safety fieldbuildingea_fundsFunding to trade money for saving the time or increasing the productivity of their employees (e.g. subsidizing electronics upgrades or childcare)
Jan 26, 2018Jaan TallinnBerkeley Existential Risk Initiative$800,000Otherjaan_onlineUnrestricted grant
Jan 2018Coefficient Giving$1,000,000Other existential riskcoefficient_givingGeneral Support
Jan 2018Coefficient Giving$560,000EA infrastructurecoefficient_givingSummer Program on Applied Rationality and Cognition
Dec 27, 2017Jaan TallinnBerkeley Existential Risk Initiative$100,000Otherjaan_onlineUnrestricted grant
May 2017Coefficient Giving$340,000Other existential riskcoefficient_givingEuropean Summer Program on Rationality
Jul 2016Coefficient Giving$1,035,000Other existential riskcoefficient_givingGeneral Support
May 2016Coefficient Giving$304,000Other existential riskcoefficient_givingSPARC
2016EA Giving Group—EA infrastructurevipul_donationsActual date range: December 2015 to February 2016. Exact date, amount, or fraction not known, but it is the donee with the fifth highest amount donated out of six donees in this period
2014EA Giving Group—EA infrastructurevipul_donationsActual date range: December 2013 to December 2014. Exact date, amount, or fraction not known, but it is the donee with the second highest amount donated out of five donees in this period

Grants via 8 · $3,354,800 · $419,350 average

Date ↓FunderRecipientViaAmountCauseSourcePurpose
Oct 25, 2024Jaan TallinnLightcone InfrastructureCenter for Applied Rationality$1,720,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Oct 25, 2024Jaan TallinnLightcone InfrastructureCenter for Applied Rationality$200,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Nov 30, 2023Jaan TallinnLightcone InfrastructureCenter for Applied Rationality$160,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Jul 11, 2023Jaan TallinnLightcone InfrastructureCenter for Applied Rationality$250,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Dec 8, 2022Jaan TallinnElizabeth Van NostrandCenter for Applied Rationality$11,000Otherjaan_onlineGeneral support for Elizabeth Van Nostrand c/o Lightcone
Dec 8, 2022Jaan TallinnLightcone InfrastructureCenter for Applied Rationality$600,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Aug 18, 2022Jaan TallinnLightcone InfrastructureCenter for Applied Rationality$400,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Jul 8, 2022Jaan TallinnLightcone InfrastructureCenter for Applied Rationality$13,800Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure

As fiscal sponsor 19 · $8,252,000 · $434,316 average

Date ↓FunderRecipientViaAmountCauseSourcePurpose
2024Jaan TallinnLightcone InfrastructureSurvival and Flourishing Fund$1,720,000Epistemic infrastructuresffGeneral support of Lightcone Infrastructure
2024Jaan TallinnLightcone InfrastructureSurvival and Flourishing Fund$200,000Epistemic infrastructuresffGeneral support of flexHEG prototyping
2024Jaan TallinnJacob LagerrosSurvival and Flourishing Fund$100,000OthersffGeneral support of flexHEG prototyping
Oct 26, 2023Jaan TallinnLightcone InfrastructureSurvival and Flourishing Fund$410,000Research hubssffGeneral Support of Lightcone Infrastructure
Oct 26, 2023Jaan TallinnCoordination ProjectSurvival and Flourishing Fund$29,000OthersffGeneral Support of Coordination Project
Oct 26, 2023Jaan TallinnSLT Summit organizersSurvival and Flourishing Fund$20,000FoundationssffGeneral Support of SLT Summit organizers
Apr 28, 2023Jaan TallinnLightcone InfrastructureSurvival and Flourishing Fund$1,733,000Research hubssffGeneral Support of Lightcone Infrastructure
Dec 2022Jaan TallinnRationality MeetupsSurvival and Flourishing Fund$140,000EA infrastructuresffGeneral Support of Rationality Meetups
Dec 2022Jaan TallinnLightcone InfrastructureSurvival and Flourishing Fund$1,000,000Research hubssffGeneral Support of Lightcone Infrastructure
Dec 2022Jaan TallinnElizabeth Van NostrandSurvival and Flourishing Fund$25,000Research hubssffGeneral Support of Elizabeth Van Nostrand c/o Lightcone
Nov 20, 2021Casey and Family FoundationLightcone InfrastructureSurvival and Flourishing Fund$500,000Research hubssffGeneral Support of Lightcone Infrastructure
Nov 20, 2021Jaan TallinnLightcone InfrastructureSurvival and Flourishing Fund$380,000Research hubssffGeneral Support of Lightcone Infrastructure
Jul 2021Jaan TallinnLightcone InfrastructureSurvival and Flourishing Fund$1,055,000Research hubssffGeneral Support of LessWrong
Jun 2020Jaan TallinnLightcone InfrastructureSurvival and Flourishing Fund$290,000Research hubssffGeneral Support of LessWrong
Jun 2020Jed McCalebLightcone InfrastructureSurvival and Flourishing Fund$30,000Research hubssffGeneral Support of LessWrong
Jun 2020Jaan TallinnLightcone InfrastructureSurvival and Flourishing Fund$110,000Research hubssffGeneral Support of LessWrong
Sep 2019Jaan TallinnLessWrong 2.0Survival and Flourishing Fund$260,000EA infrastructuresffGeneral Support
Sep 4, 2018Jaan TallinnLightcone InfrastructureBerkeley Existential Risk Initiative$150,000Epistemic infrastructurejaan_onlineGeneral support for activities to develop and improve the website LessWrong 2.0
Feb 8, 2018Jaan TallinnLightcone InfrastructureBerkeley Existential Risk Initiative$100,000Epistemic infrastructurejaan_onlineGeneral support for activities to develop and improve the website LessWrong 2.0