Skip to content
Longterm Wiki has not been actively maintained since May 2026. Some data is still updated occasionally, but please don't rely on this site being current or accurate.
Longterm Wiki

Manifund is a $2M+ annual charitable regranting platform (founded 2022) that provides fast grants (<1 week) to AI safety projects through expert regrantors ($50K-400K budgets), fiscal sponsorship, and experimental impact certificates. The platform distributed $2.06M in 2023 (~40% to AI safety research), with a growing focus on AI safety evaluations and field-building.

Total Funding Raised
$2.3M
as of 2025
Grants Made
$11M
354 grants

Facts

2
Financial
Total Funding Raised$2.3M
General
Websitehttps://manifund.org/

Other Data

Entity Assessments
8 entries
DimensionRatingEvidenceAssessor
fiscal-sponsorshipYes501(c)(3) status; 5% fee for large donorseditorial
focus-areasAI Safety Primary~80% of grants to x-risk/AI safetyeditorial
mechanism-innovationHighPioneered impact certificates, regranting at scaleeditorial
related-platformManifold MarketsShared founders, infrastructure, communityeditorial
scaleGrowing$2M+ in 2023; $2.25M raised for 2025 regrantseditorial
speedVery FastGrant recommendation to disbursement in under 1 weekeditorial
team-sizeSmall~3 core staff (Austin Chen, Rachel Weinberg, Saul Munn)editorial
transparencyVery HighAll grants public with explanationseditorial
Entity Events
14 entries
TitleDateEventTypeSignificanceDescription
ACX Grants 2025 funds 42 of 654 applications2025-01milestonemoderate—
$2.25M raised for 10 regrantors2025fundingmoderate—
Manifest 2024 (600 attendees)2024-06milestonemoderate—
Impact certificate experiments conclude with mixed results2024-01milestonemoderate—
ACX Grants 2024 includes impact market for 50+ proposals2024milestonemoderate—
First Manifest conference (250 attendees, Berkeley)2023-09milestonemoderate—
Anonymous donor "D" provides $1.5M for regranting program2023-05fundingmajor—
$2.06M distributed ($2.012M grants + $45K impact certificates)2023milestonemoderate—
Manifund launches with ~12 regrantors ($50K-400K budgets each)2023launchmajor—
Receives $500K from FTX Future Fund for charity prediction markets2022fundingmoderate—
Scott Alexander approaches team about ACX Grants via impact certificates2022milestonemoderate—
Manifund incorporated as separate 501(c)(3)2022milestonemajor—
Rachel Weinberg joins; builds manifund.org in two weeks2022milestonemoderate—
Manifold Markets founded2021-12foundingmajorFounded by Austin Chen, Stephen Grugett, and James Grugett.

Divisions

2
Program

Experimental impact certificate marketplace where project creators sell shares of their impact to retroactive funders.

Program

Platform enabling individuals to receive tax-deductible donations for regranting. Provides fiscal sponsorship for individual regranters.

Related Wiki Pages

Top Related Pages

Approaches

Prediction Markets (AI Forecasting)

Analysis

Stampy / AISafety.info

Other

David DalrympleLeopold AschenbrennerNuño SempereRobin HansonEvan HubingerEliezer Yudkowsky

Organizations

MATS ML Alignment Theory Scholars programSeldon LabLighthaven (Event Venue)Sentinel (Catastrophic Risk Foresight)PolymarketForesight Institute

Concepts

Funders Overview