China commences a military offensive to establish control over any portion of Taiwan by December 31, 2027.

Question

Six frontier AI models put this at 8% by 1 Jan 2028. The market says 8%. Full reasoning from every model.

WillHappen.ai · Accepted Answer

8% — the median of 5 frontier models, resolving by 2028-01-01.

Answer

Gemini (Google): 8% — Beijing retains overwhelming non-kinetic levers while amphibious logistics and sanctions exposure remain critical unaddressed bottlenecks. A 14-month window through 2027 offers negligible strategic urgency outweighing the catastrophic economic fallout of invasion. PLA amphibious lift capacity and joint command integration remain insufficient for a guaranteed full-scale assault. A major political crisis in Taipei triggering an outright declaration of de jure independence is the only plausible near-term catalyst.

Answer

Claude (Anthropic): 4% — Hinges on whether PLA military modernization timelines and Xi's political calendar push action before end-2027. No indicators yet of imminent large-scale mobilization, blockade, or invasion force staging near Taiwan. Base rate for major war initiation in any given ~14-month window is low; China prefers coercion short of war absent a trigger like formal independence declaration. Watch for PLA large-scale exercises escalating into actual blockade/seizure of offshore islands (Kinmen/Matsu) as the most plausible trigger before full invasion.

Answer

GPT (OpenAI): 18% — Beijing must judge that a limited seizure can succeed without triggering a ruinous U.S.-allied war or economic shock. A 13.5-month window is short: PLA modernization and coercive drills are routine, but no Taiwan invasion or inhabited-island seizure has occurred since 1949. China's leaders would need to authorize combat, while the PLA must first sustain blockade, amphibious, and escalation plans under U.S., Japanese, and Taiwanese response… Odds rise sharply if Beijing announces a quarantine, mobilizes civilian shipping, or isolates an inhabited outlying island after a Taiwan political crisis.

Answer

Grok (xAI): 11% — Xi must order an assault on Taiwan or inhabited outlying islands with only 13 months left. PLA 2027 readiness target is real but war costs (US intervention, sanctions, domestic stability) still dwarf any gain without a crisis trigger. No large-scale amphibious or missile mobilization is visible in late 2026; such ops require months of detectable prep. Post-1949 base rate of zero invasions; a Taiwan independence move or US defense-treaty collapse would most shift this.

Answer

DeepSeek (DeepSeek): 7% — This turns on whether Xi orders a cross-strait invasion before 2028, which requires a force buildup that would be visible months out. China's amphibious lift and logistics remain short of what a Taiwan landing needs, and any real preparation would show up in exercises and ship movements well before… The base rate for major-power invasions of this scale is very low; Russia's 2022 Ukraine gamble is the closest precedent and it went badly, raising Beijing's caution. A sudden political crisis in Beijing or a Taiwanese declaration of independence would be the main trigger that could move this from unlikely to imminent.

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