UTC17:28ZNowSIREN 454.8/100Delta−0.2downsince 16:46ZObservedSources18/18reportingStatusOPERATIONAL

Which AI doom indexes can you compare? · Which AI indexes does SIREN contrast?

SIREN vs AI Fear & Trust Index: which should you use?

Closest in spirit: both measure something observable, not danger. SIREN counts AI activity (releases, compute, money, governance, markets, attention), not fear in posts, and every input is public.

SIREN 4ROUTINE
54.8of 100 this hour
2026-10-22 17:28:54 UTCUTC reading time

AI activity index today · AI activity level today · SIREN → · state.json → · Scale runs 5 (quietest) to 1 (loudest). Tempo, not danger.

What is each one?

IndexWhat it measuresWho sets itRecomputable?
SIRENHow much is happening in AI (tempo across five pillars)A published formula over public data, hourlyYes — from the receipt and open code
DoomBenchA qualitative “doom index” from sourced evidence for and against an AI-takeover scenarioTheir scoring rules over curated evidence itemsNo
Skynet CountdownEstimated chance of AI control loss and an estimated AGI date, plus tagged newsTheir risk and timeline model over breakthroughs and headlinesNo
p(doom) clocksOne person’s (or a site’s) stated probability that AI ends badly, often as a clockWhoever picks the numberNo
PizzINTA pizza-and-intel novelty index that borrows DEFCON and Doomsday Clock language in the titleTheir site’s framing over pizza / intel metaphors — not a published AI-activity formulaNo
Takeoff TrackerA dashboard of AGI-adjacent signals — Metaculus-style timelines, AI stock moves, arena leaderboards, GPU power, datacentres, and collected p(doom) estimatesTheir curated dashboard over public prediction markets, markets data and linked leaderboardsNo
The AI Doomsday Clock (aidoomsday.live)Where stated expert probabilities of AI catastrophe cluster, shown as a clock (it reads the 10–20% cluster)The site, reading a spread of named researchers’ and lab leaders’ stated p(doom)No
IMD AI Safety ClockRisk from uncontrolled AGI across sophistication, autonomy and execution, set as minutes to midnight (it launched at 29 and has since moved to 15)IMD researchers, combining a news-tracking dashboard with desk research and expert judgementNo
AI Fear & Trust IndexHow much and how intensely people talk about existential risk for each model or lab, with a minutes-to-midnight displayA published formula over posts that their own language model classifiesNo

What is AI Fear & Trust Index?

What is SIREN?

What questions do people actually ask?

SIREN vs AI Fear & Trust Index: which should you use?

Use AI Fear & Trust Index if you want how much and how intensely people talk about existential risk for each model or lab, with a minutes-to-midnight display. Use SIREN if you want an hourly AI activity tempo reading with open inputs and a receipt. They are not substitutes for the same claim.

Can I recompute AI Fear & Trust Index?

Partly: the weights are published, but the inputs are labels from their own classifier, so a stranger cannot rebuild the score from raw public data

Does SIREN publish the same number as AI Fear & Trust Index?

No. SIREN does not score a computed index of existential-risk discourse about named ai systems. It scores observable activity across five pillars and says so on every page.

What is AI Fear & Trust Index?

AI Fear & Trust Index: A computed index of existential-risk discourse about named AI systems. Measures How much and how intensely people talk about existential risk for each model or lab, with a minutes-to-midnight display. Set by A published formula over posts that their own language model classifies.

What is SIREN?

SIREN measures AI activity tempo across capability, compute & capital, attention, governance and markets with a published formula over public data, hourly.

Where should you go next?

AI activity index today · AI activity level today · SIREN → · How the SIREN AI activity index is computed · methodology · Which AI doom indexes can you compare? · Which AI indexes does SIREN contrast? · What are AI doom index alternatives? · Is there an AI doomsday clock? → · How the SIREN AI activity index is computed · methodology →

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