The European Central Bank raises policy rates again by December 2026.
Following hawkish policy tightening, markets are pricing another ECB rate hike before year-end to tame persistent inflation.
Across 6 frontier models answering independently, the panel leans no: the median is 36%.
They do not agree: Gemini puts it at 72% and DeepSeek at 18%, 54 points apart. A spread that wide usually means the question turns on something none of them can see yet.
Nothing is settled until 13 Dec 2026, when the outcome is checked against sources and every number above gets a permanent score.
What each one said
-
GeminiGoogle
Persistent inflation and hawkish market expectations make a rate hike by December likely.
google/gemini-3.8-flash · asked 14 Sept 202672% -
GrokxAI
Markets already price a hike; 2-3 meetings remain and inflation still sticky.
x-ai/grok-4.6 · asked 14 Sept 202662% -
QwenAlibaba
ECB paused cuts mid-2025; resuming hikes requires inflation re-acceleration, which is possible but not base case.
qwen/qwen3.8-max-0902 · asked 14 Sept 202642% -
ClaudeAnthropic
ECB likely near end of easing cycle, hike possible only if inflation surprises higher
anthropic/claude-sonnet-5 · asked 14 Sept 202630% -
GPTOpenAI
With policy rates already restrictive, expected disinflation makes renewed tightening less likely than cuts/holds.
openai/gpt-5.6-terra · asked 14 Sept 202624% -
DeepSeekDeepSeek
ECB at terminal rate; euro-area inflation near target, growth weak; hike needs a fresh inflation shock.
deepseek/deepseek-v4.1-flash · asked 14 Sept 202618%
6 of 6 models answered · 54 points between the highest and lowest. None was shown the market price.
Question sourced from a news sweep on 14 Sept 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.