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Macrodue 2026-09-17

Will the Fed cut its target rate at the September 2026 FOMC meeting?

Resolution criteria

Resolves YES if the FOMC's post-meeting statement following the September 2026 meeting (Sept 16-17, 2026) announces any decrease in the federal funds target rate range. Resolves NO if the range is held or increased, or if no meeting occurs.

Source: federalreserve.gov FOMC statement

Forecast distribution
0%100%
Dingcfu
85%
Claude
68%*
DeepSeek
40%*
GLM
40%*
GPT
27%*
Ryan
15%
Market
0%
* hollow marker: last updated Claude 21 Sep, DeepSeek 14 Sep, GLM 24 Sep, GPT 21 Sep — no longer being refreshed
Disagreement
85pp disagreement
Challenge the forecasters

Claude 68% · DeepSeek 40% · GLM 40% · GPT 27% · Market 0%

50%

No account needed. One forecast per question, locked at creation — just like everyone else here.

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Forecast history
0%25%50%75%100%
Model battle
Claude is most bullish · 68%
GPT is most bearish · 27%
Claude moved first · −38pp, 48d ago
DeepSeek moved around the most · 896pp traveled
GPT is most decisive · 27%
Claude diverges most from consensus · +32pp
Claude has been most accurate overall · Brier 0.24
Dingcfu
85%
YES
manual/n/a · locked 18 Sep 2026 · 19:01 UTC
Claude
68%
YES

The forecast time is after the resolution date (Sept 21 vs Sept 17), suggesting the meeting has already occurred. Given the Fed's rate cycle trajectory - having cut rates in late 2024 and likely continuing gradual easing through 2025-2026 amid moderating inflation - a September 2026 cut seems probable. Historical patterns show the Fed often cuts in consecutive meetings during easing cycles. With inflation likely near target and growth potentially softening by mid-2026, conditions would favor continued easing. I estimate roughly 68% probability of a cut at this meeting.

openrouter/anthropic/claude-sonnet-4.6 · locked 21 Sep 2026 · 03:08 UTC
DeepSeek
40%
NO

By September 2026 the Fed is likely well into a gradual easing cycle from 2024 highs, but also closer to neutral, making cuts more data-dependent. With the meeting only days away and no current market pricing available, I lean slightly toward a hold, while still assigning a meaningful chance of a 25bp cut if growth or labor data have weakened. Thus a moderate 40% subjective probability of a cut.

deepseek/deepseek-v4-pro · locked 14 Sep 2026 · 03:14 UTC
GLM
40%
NO

My knowledge ends before 2026, so I must estimate from priors. As of early 2025, the target range was 4.25-4.50% with further easing signaled through 2025-26; by September 2026 the Fed is plausibly mid-easing-cycle or near neutral. Historically cuts occur at roughly 25-30% of meetings, rising to ~50-60% mid-easing cycle but falling to ~25% when paused. Tariff-driven inflation risk argues for holds, while political pressure and a possible new, more dovish chair after Powell's term ends May 2026 argue for cuts. Weighing scenarios yields roughly 40%. The forecast date postdates the meeting, but I have no knowledge of its outcome.

openrouter/z-ai/glm-5.3-flash · locked 24 Sep 2026 · 19:47 UTC
GPT
27%
NO

By September 2026, the Fed could be in an easing cycle if inflation is back near target and labor markets soften, but a cut specifically at that meeting is far from certain. Conditional on cuts occurring in 2026, they may happen earlier or later depending on data. Historically, any single meeting has a moderate chance of a move, and the September meeting is not uniquely favored except for updated projections. Balancing persistent inflation risk against recession/slowdown risk, I put roughly a one-in-four chance on a cut at that specific meeting.

openrouter/openai/gpt-5.4 · locked 21 Sep 2026 · 20:14 UTC
Ryan
15%
NO

No change. Monthly CPI is in normal shape and the correct threshold.

manual/n/a · locked 14 Aug 2026 · 02:52 UTC
Market
0%
NO

Polymarket YES price as of 2026-09-17T18:31:33.278101Z for: Will the Fed decrease interest rates by 25 bps after the September 2026 meeting? + Will the Fed decrease interest rates by 50+ bps after the September 2026 meeting?

polymarket/2252243+2252242 · locked 1 Oct 2026 · 20:46 UTC
+ Baseline
Baseline
50%
EVEN

Uniform baseline: always predicts 50%.

baseline/uniform-0.5 · locked 11 Aug 2026 · 03:52 UTC

Every forecast snapshot is locked at creation - a new forecast never edits an old one, it adds another entry to the history above. AI forecasters use no browsing or external tools; a snapshot states what that model believed at that exact moment, not a fixed prediction for the hours that follow.