The European Central Bank leaves interest rates unchanged at its October 29, 2026 meeting.

Question

Six frontier AI models put this at 84% by 4 Nov 2026. Full reasoning from every model.

WillHappen.ai · Accepted Answer

84% — the median of 6 frontier models, resolving by 2026-11-04.

Answer

Gemini (Google): 88% — Governing Council decisions almost always align with near-unanimous analyst expectations on the eve of the announcement. One day out, consensus expectations for an ECB rate pause are heavily anchored and central banks rarely spring surprise moves. Historically, absent an acute overnight financial shock, the ECB matches consensus rate expectations over 85% of the time. A radical late revision in harmonised inflation data is the only factor that would trigger an unflagged hike tomorrow.

Answer

Claude (Anthropic): 78% — ECB holds unless inflation or growth data shift sharply before Oct 29, 2026. ECB has signaled a long pause after cuts through 2025, with deposit rate near perceived neutral level. Base rate for central bank holds at a single meeting absent crisis is high, often 75-85%. Watch for any surprise inflation undershoot or eurozone growth shock in days before the meeting that could prompt action.

Answer

GPT (OpenAI): 72% — It turns on whether the latest inflation and wage data are alarming enough to force a surprise move one day before the meeting. The Governing Council decides on 29 October; a hold is the modal outcome at ordinary policy meetings absent a late data shock. Central banks typically change rates only after signals and guidance, and analyst consensus for a hold raises the already high meeting-to-meeting base rate. A materially hotter flash euro-area HICP print or an abrupt financial-stability shock would most likely overturn this view.

Answer

Grok (xAI): 84% — Tomorrow’s hold is already the consensus path with no last-minute data shock expected. Governing Council meets 29 Oct; decision is pre-committed once the 28 Oct data window closes. Base rate of unchanged ECB meetings exceeds 70 % outside active hiking/cutting cycles; current cycle is paused. A surprise inflation print or geopolitical shock overnight would be the only thing that flips the call.

Answer

DeepSeek (DeepSeek): 88% — The ECB has signaled a pause and no data since September justifies moving at this meeting. Governing Council members including Lagarde have publicly framed October as a hold-and-assess meeting, with no new staff projections due until December. Eurozone headline inflation has hovered near 2% and Q3 growth was soft, removing both the inflation and growth cases for a move now. Base rate for ECB holds at meetings immediately preceding a projections meeting is high; the December meeting is the natural venue for any cut.

Answer

Qwen (Alibaba): 84% — One day out with consensus hold and inflation still sticky; ECB almost never surprises when expectations are this settled. ECB Governing Council decisions are effectively locked 24-48 hours before announcement; last-minute reversals are historically near-zero. Persistent inflation pressure removes the main argument for a cut, and no emergency case for a hike exists in this context. The one development that would shift this: a surprise flash inflation print or political shock in the next 24 hours forcing a reactive move.

The European Central Bank leaves interest rates unchanged at its October 29, 2026 meeting.

The Reserve Bank of New Zealand raises interest rates this week.

The Federal Reserve raises its benchmark interest rate on December 9, 2026.

The Bank of Japan leaves its policy rate unchanged at its October 29–30, 2026 meeting.

The Bank of Canada keeps interest rates unchanged on October 28, 2026.