The human species becomes extinct before 2100.

Question

Six frontier AI models put this at 3% by 4 Sept 2076. Full reasoning from every model.

WillHappen.ai · Accepted Answer

3% — the median of 6 frontier models, resolving by 2076-09-04.

Answer

Gemini (Google): 4% — Complete extinction requires eliminating every isolated pocket of humanity, a threshold almost no catastrophe can physically achieve. Nuclear winter or climate collapse devastates billions but leaves viable refuges in places like New Zealand or southern Chile. Only an unaligned superintelligence or an omnicidal engineered stealth pathogen with 100% lethality could achieve absolute zero. Rapid progress toward self-improving AGI before 2040 with lethal autonomous deployment would materially raise these odds.

Answer

Claude (Anthropic): 1% — Full human extinction within ~50 years requires an unprecedented, near-total civilizational collapse with no survivors anywhere. No historical precedent exists for total species extinction from war, pathogen, or technology within a 50-year window. Human populations are geographically dispersed, including remote and hardened locations, making 100% mortality extraordinarily unlikely even in severe catastrophe… Serious existential risk researchers estimate this-century extinction probability in low single digits, and this resolution window is shorter than 2100.

Answer

GPT (OpenAI): 3% — Near-total extinction within 50 years requires a global catastrophe that also defeats dispersed survivors and recovery. Historical nuclear war, pandemics, and catastrophes have never come close to eliminating every human population worldwide. AI and engineered pathogens raise tail risk, but extinction needs deployment, global spread, and failure of shelters and isolated groups by 2076. Credible evidence of an uncontrollable engineered pandemic or loss of control over strategic AI systems would raise this sharply.

Answer

Grok (xAI): 3% — A catastrophe must kill every last human worldwide with zero survivors in 74 years. No current actor (states, labs, AI labs) can guarantee omnicide; nuclear/bio leave remote pockets. 74-year base rate of hominin extinction is ~0; expert x-risk figures (1-10%) cover collapse, not total death. Unaligned superintelligence that is both capable and omnicidal is the main factor that would raise this.

Answer

DeepSeek (DeepSeek): 2% — Extinction needs a single event killing every isolated human, which no known technology can reliably do. No mechanism in the literature — nuclear winter, engineered pathogen, unaligned AI — has a credible path to killing all ~8 billion people including Antarctic and remote… Even the worst historical catastrophes (Black Death ~30-60% of Europe, Toba bottleneck) left survivors; extinction requires 100% lethality with zero refugia, a far… The main update would be a demonstrated, deployable technology with global reach and no countermeasure, which does not exist as of 2026.

Answer

Qwen (Alibaba): 2% — Full extinction requires a mechanism that kills every last human in 50 years; no known risk pathway reliably achieves zero survivors. Nuclear war, pandemics, and AI risk can cause civilizational collapse but historical modeling (e.g., nuclear winter studies) consistently leaves refugia with survivors. Base rate: zero human extinctions in 300k years of the species; even the Toba bottleneck ~74kya left thousands. A development that would raise this: a confirmed, self-replicating nanotech or engineered pathogen with near-100% lethality and no geographic refuge.

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