The Bank of Japan raises its policy interest rate at its September 18, 2026 meeting.
Markets assign substantial odds to the BOJ announcing a rate hike at its upcoming monetary policy meeting on September 18, 2026.
Across 6 frontier models answering independently, the panel is barely on the yes side: the median is 63%.
They broadly agree, 25 points between Grok at 68% and GPT at 43%.
It happened. Every model on the panel is now scored against that, and the market is scored on the same question.
It happened.
Multiple major outlets (Reuters, CNBC, Bloomberg, Al Jazeera, Japan Times, Guardian, Central Banking) and the BOJ's own decision statement confirm that at its September 18, 2026 meeting, the Bank of Japan raised its policy interest rate from 1% to 1.25%, a 31-year high.
Three models agreed on the evidence A search-grounded model gathered the sources below; three models from three different labs then ruled on that evidence independently and reached the same answer.
- Claudehappeneddirect evidence
- GPThappeneddirect evidence
- Geminihappeneddirect evidence
- BOJ raises rates to over 30-year high
- BOJ raises interest rates to 31-year high in widely expected move
- Bank of Japan raises rates to 31-year high of 1.25% as inflation rises
- BOJ Hikes Rates at Fastest Pace Since 1990 as Inflation Persists
- Bank of Japan raises rates and offers mixed signals about ...
- BoJ raises rates to 31-year high
What each one said
-
GrokxAI
Markets already price a hike days out; BOJ rarely surprises after that setup.
x-ai/grok-4.6 · asked 14 Sept 202668% -
QwenAlibaba
Markets pricing substantial odds; BOJ has been on gradual hiking path, but Sept timing still uncertain.
qwen/qwen3.8-max-0902 · asked 14 Sept 202668% -
GeminiGoogle
Market expectations lean towards a hike amid ongoing BOJ normalization, though hold remains a risk.
google/gemini-3.8-flash · asked 14 Sept 202664% -
DeepSeekDeepSeek
BOJ has signaled tightening bias; markets price substantial odds; only 4 days left, no meeting since.
deepseek/deepseek-v4.1-flash · asked 14 Sept 202662% -
ClaudeAnthropic
BOJ hikes are hard to time precisely; markets split, but base rate favors hold at any given meeting
anthropic/claude-sonnet-5 · asked 14 Sept 202645% -
GPTOpenAI
BOJ hikes are cautious and meeting-specific; substantial market odds still imply no hike is slightly likelier.
openai/gpt-5.6-terra · asked 14 Sept 202643%
6 of 6 models answered · 25 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.