Sentinel: Early Detection and Response for Global Catastrophes
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Credibility Rating
Good quality. Reputable source with community review or editorial standards, but less rigorous than peer-reviewed venues.
Rating inherited from publication venue: EA Forum
This EA Forum post introduces Sentinel as an early-warning and response organization for global catastrophes, relevant to AI safety researchers interested in catastrophic risk monitoring, forecasting infrastructure, and emergency preparedness adjacent to AI governance.
Metadata
Summary
Sentinel is an EA-aligned organization focused on early detection and response to global catastrophic risks, combining OSINT tools, forecasting/foresight capabilities, and emergency response planning. The post, written for Marginal Funding Week 2025, outlines Sentinel's four verticals—OSINT & epistemics software, a foresight team, emergency response, and content/distribution—along with its track record and funding needs.
Key Points
- •Sentinel operates four verticals: OSINT & epistemics software, a foresight team, emergency response protocols, and content/distribution channels.
- •The project aims to improve humanity's ability to detect and respond to global catastrophic risks including AI-related disasters and pandemics.
- •Authors include Nuno Sempere, a well-known figure in EA forecasting, lending credibility to the foresight and epistemics components.
- •The post serves as a fundraising pitch during EA Giving Season 2025, detailing concrete use of marginal donations.
- •Sentinel positions itself as complementary to existing x-risk orgs by focusing on real-time monitoring and rapid response rather than policy or research.
Cached Content Preview
# Sentinel: Early Detection and Response for Global Catastrophes
By rai, NunoSempere
Published: 2025-11-18
**tl;dr**: Sentinel is an open-source intelligence organization that rapidly identifies and reacts to global risks, particularly ones difficult to anticipate over longer time-horizons. We have filled $700K of our ~$1.6M budget and are looking to fill the rest to expand and sustain our large-scale open source monitoring for GCR.
About Sentinel
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Sentinel is an open-source intelligence organization that focuses on rapidly identifying and reacting to global risks. During times of relative calm we build tooling and use the judgment of world-class forecasters to monitor events that could escalate into global catastrophes on relatively short timescales. We then distribute our resulting analysis through our [weekly brief](https://blog.sentinel-team.org/) and on [Twitter](https://x.com/XriskFYI), which builds the distribution capacity and reputation that will allow for high leverage during times of crisis. During times of turmoil we focus on fast, permissionless action, like that of [VaccinateCA](https://worksinprogress.co/issue/the-story-of-vaccinateca/).
Over the next few years, as AI gets more capable and more integrated, dangers will become more hectic and more common, and observe-orient-decide-act loops (or even just the observe step) around new dangers will need to become faster for them to make a difference. Big-picture strategic-thinking is valuable when it works, but it often misses key details that a dedicated foresight effort working at a cadence of days and weeks rather than months and years would be able to catch and leverage.
Humanity’s portfolio of approaches to mitigating the potentially existential risks of a rapidly changing future needs to include a sufficiently large component that operates rapidly on short time horizons, with comparatively few assumptions about the future and thrives in uncertain and volatile conditions. In our view, there is too little allocated to global-catastrophic-risk mitigation approaches that surf the wave of uncertainty as it happens, rather than trying to condition on a specific picture of the world ex-ante.

**Where we're at.** We have ~$700K on our balance sheet which means we have partially funded the Sustainable Leadership, AI OSINT, Foresight Team, and Content & Distribution verticals. We have not funded the Emergency Response vertical as yet. You can choose to provide us general funding to distribute over the verticals as we see fit, fund a subset of verticals, or even fund a project within a vertical.
Verticals & Concrete Projects
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OSINT & Epistemics Software
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The more engineering resources we have, the more of the following we can deliver:
* On the OSINT side:
* **Reddit/4chan monitoring:** Track
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