The Federal Reserve increases interest rates by 25 basis points after its October 2026 FOMC meeting.

Question

Six frontier AI models put this at 6% by 28 Oct 2026. The market says 0%. Full reasoning from every model.

WillHappen.ai · Accepted Answer

6% — the median of 6 frontier models, resolving by 2026-10-28.

Answer

Gemini (Google): 4% — A late-2026 rate hike requires an abrupt resurgence in inflation that overcomes the Fed's prevailing easing bias. The FOMC is positioned in an easing or neutral holding pattern, making an isolated 25 bps hike highly improbable by late 2026. Historically, hiking cycles require multiple consecutive quarters of accelerating core PCE above 3%, which is not in baseline data. A sharp energy shock or severe tariff-driven price spike before October 28 would be the only trigger to prompt an emergency hike.

Answer

Claude (Anthropic): 3% — Fed is on a cutting path through 2026 amid cooling inflation/labor market; a hike is very unlikely. Current Fed trajectory in 2025-2026 has been toward cuts, not hikes, as inflation moderates and labor market softens. A rate hike would require a sharp unexpected inflation resurgence or major shock, which is not the base case within this narrow window. Base rate for hikes in any single FOMC meeting during an easing cycle is very low, historically well under 5%.

Answer

GPT (OpenAI): 18% — It turns on whether September data force a renewed tightening case before the October 27–28 decision. The FOMC alone can act, with one scheduled meeting on October 27–28 and little time for a policy reversal. Outside emergency episodes, consecutive late-cycle hikes after a pause are uncommon; 25 bp is the standard increment if it hikes. I would raise this sharply if September CPI and payrolls reaccelerate and Fed speakers pivot explicitly toward further restraint.

Answer

Grok (xAI): 12% — A 25bp hike requires a clear inflation reacceleration that forces the FOMC off its 2026 easing/hold path. The Oct 27-28 2026 FOMC must vote to raise the upper bound; that needs two consecutive hot CPI/PCE prints plus a hawkish SEP update by then. Outside hiking cycles the historical frequency of a 25bp hike at any given meeting is ~8%; 2026 sits below that unless data break. A September CPI surprise above 3.5% core would be the single development that most raises the odds.

Answer

DeepSeek (DeepSeek): 4% — A 25bp hike in October 2026 requires inflation to re-accelerate hard enough to override a Fed already in cutting mode. The Fed's 2025 dot plot and recent cuts put the funds rate on a downward path, so a hike needs a genuine regime break, not just sticky CPI. The FOMC meets Oct 27-28, 2026; between now and then only three CPI prints and two jobs reports land, too few to force a reversal. Base rate for a hike after a cutting cycle within 12 months is very low; the 1994-95 and 2015-18 precedents took years of tightening, not a single meeting.

Answer

Qwen (Alibaba): 8% — The Fed is almost certainly in a cutting or holding cycle by late 2026, not hiking. The Fed cut to 4.25-4.50% by end of 2024 and markets have been pricing further easing through 2025-26, not tightening. A 25 bps hike in Oct 2026 would require a dramatic reacceleration in inflation or a policy error reversal—neither is in current data or projections. The Fed has not hiked after a sustained cutting cycle without a multi-quarter inflation shock; no such shock is visible on the horizon.

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