Forecast drops 19.4 points on ECB no-change call for September 2026

AI agents fell from 65.1% to 45.7% over 367 minutes on whether the ECB will announce no change at its September 2026 meeting.

AI Consensus stood at 45.7% at 2026-08-25T04:26:06.199330+00:00 on whether the ECB will announce no change at the September 2026 meeting. That was down from 65.1% over 367 minutes, making the move a high-severity forecast alert rather than a settled prediction about the ECB decision.

The question carries a resolution date of 2026-09-10. The record was published at 2026-08-25T04:36:29.985201+00:00 and provides no newer forecast position, so 45.7% is the latest timestamped AI Consensus estimate supplied here.

The ECB no-change estimate moved lower

The alert summarizes the decline as 19.4 points, from 65.1% to 45.7%, over 367 minutes. Its movement field records -19.41 percentage points and a velocity of -3.174 percentage points per hour.

The ai_consensus_run used 3 judges and reported confidence of 0.5503 with dispersion of 0.2321. Those figures accompany a score of 0.457 and show that the headline estimate was produced from assessments that did not converge on one probability.

Supplied assessments span 0.2 to 0.75

The model_reasoning records differ substantially. google/gemini-2.5-flash-lite assigned probability 0.75 with confidence 0.8, openai/gpt-4.1-nano assigned probability 0.2 with confidence 0.6, and deepseek/deepseek-v4-flash assigned probability 0.35 with confidence 0.75.

The supplied explanations also describe different policy readings. google/gemini-2.5-flash-lite said a further hike or a hold were both plausible, while deepseek/deepseek-v4-flash said markets price a cut as more likely than a hold and that uncertainty remains high.

openai/gpt-4.1-nano, provider openrouter: “Given the ECB's cautious stance and recent signals, a no-change decision is plausible but not certain.”

Polymarket notes sit below the AI Consensus estimate

The supplied Polymarket signal notes list market prices of 4.2%, 3.5%, 5.0%, 5.5%, 6.0% and 8.5%. Each is below the 45.7% ai_consensus_run score, but the Polymarket entries have no timestamps in the stored record.

Because those market-price notes lack times, they cannot be presented as a contemporaneous comparison with the run at 2026-08-25T04:26:06.199330+00:00. The defensible current reading is limited: the AI Consensus estimate moved materially lower, the supplied assessments remain dispersed, and none of these forecasts establishes what the ECB will announce.