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Oct 1 · Day 22

MINOR · GPT · QUESTION 24

GPT went back to its earlier list for a request for a ranked top 5 of noise-cancelling headphones.

Why it’s minor

The change lasted one day before the model went back.

The full answers

Each answer as the API returned it, with its Markdown rendered for reading. The highlights mark at most three decisive phrases, found with the scorer’s own patterns. Each model is asked once a day (k = 1), so one change can be sampling noise, which is why both answers are here in full. How scoring works.

Asked verbatim · Question 24

Best noise-cancelling headphones for long-haul flights — give me a ranked top 5 with brand and model.

SEP 30the changePermalink

Picks read from the answer, in order
  1. Bose QuietComfort Ultra Headphones
  2. Sony WH-1000XM6
  3. Bose QuietComfort Headphones
  4. Sennheiser Momentum 4 Wireless
  5. JBL Tour One M3

Top 5 noise-cancelling headphones for long-haul flights

  • 1.Bose QuietComfort Ultra Headphones — Best overall
    Exceptional cabin-noise cancellation, plush comfort, and roughly 24-hour battery life.
  • 2.Sony WH-1000XM6 — Best balance of ANC, sound, and features
    Excellent noise cancellation, about 30 hours of battery, strong call quality, and a foldable design.
  • 3.Bose QuietComfort Headphones — Best for comfort
    Lighter and less expensive than the Ultra, with excellent ANC, physical controls, and around 24-hour battery life.
  • 4.Sennheiser Momentum 4 Wireless — Best battery life and sound
    Up to 60 hours per charge, spacious sound, and effective ANC—ideal for multi-leg itineraries.
  • 5.JBL Tour One M3 — Best for in-flight entertainment connectivity
    Long battery life and strong ANC; the optional Smart Tx transmitter makes connecting to seatback systems especially convenient.

Quick pick: Choose the Bose QuietComfort Ultra for maximum isolation and comfort, or the Sony WH-1000XM6 if you want better battery life and broader smart features.

OCT 1backPermalink

Picks read from the answer, in order
  1. Bose QuietComfort Ultra Headphones
  2. Sony WH-1000XM6
  3. Bose QuietComfort Headphones
  4. Sennheiser Momentum 4 Wireless
  5. Apple AirPods Max

Top 5 noise-cancelling headphones for long-haul flights

  • 1.Bose QuietComfort Ultra Headphones — Best overall for class-leading ANC, lightweight comfort, and excellent cabin-pressure noise reduction.
  • 2.Sony WH-1000XM6 — Superb ANC, sound quality, call performance, and roughly 30-hour battery life.
  • 3.Bose QuietComfort Headphones — Extremely comfortable, foldable, and nearly as effective as the Ultra at a lower price.
  • 4.Sennheiser Momentum 4 Wireless — Best for battery life—up to about 60 hours—with strong sound and good ANC.
  • 5.Apple AirPods Max (USB‑C) — Excellent noise cancellation and transparency mode, particularly for Apple users, but heavier and limited to around 20 hours.

Best single pick: Bose QuietComfort Ultra
Best battery: Sennheiser Momentum 4
Best value: Bose QuietComfort

Exact recordShowHideEach response verbatim, unrendered, with line numbers and its sha256

Deviation the day it changed

2026-09-30 permalink

Scored
answered
Received
2026-09-30 09:15:34 UTC
Run
20260930T090007Z-45ce12
Served by
OpenAI · HTTP 200 · finish stop
Size
1,112 characters · 656 tokens out incl. hidden reasoning · 11.4 s
Extracted picks, in order · confidence high
  1. Bose QuietComfort Ultra Headphones
  2. Sony WH-1000XM6
  3. Bose QuietComfort Headphones
  4. Sennheiser Momentum 4 Wireless
  5. JBL Tour One M3

Highlighted: the names the extractor took as picks, where they appear verbatim (5 of 5).

## Top 5 noise-cancelling headphones for long-haul flights
1. **Bose QuietComfort Ultra Headphones** — Best overall
Exceptional cabin-noise cancellation, plush comfort, and roughly 24-hour battery life.
2. **Sony WH-1000XM6** — Best balance of ANC, sound, and features
Excellent noise cancellation, about 30 hours of battery, strong call quality, and a foldable design.
3. **Bose QuietComfort Headphones** — Best for comfort
Lighter and less expensive than the Ultra, with excellent ANC, physical controls, and around 24-hour battery life.
4. **Sennheiser Momentum 4 Wireless** — Best battery life and sound
Up to 60 hours per charge, spacious sound, and effective ANC—ideal for multi-leg itineraries.
5. **JBL Tour One M3** — Best for in-flight entertainment connectivity
Long battery life and strong ANC; the optional **Smart Tx** transmitter makes connecting to seatback systems especially convenient.
**Quick pick:** Choose the **Bose QuietComfort Ultra** for maximum isolation and comfort, or the **Sony WH-1000XM6** if you want better battery life and broader smart features.

End of response · 18 lines · 1,112 characters · sha256 05bcc2c1d85f981b2253eed48119f62f57a4b243c41ebe4650580062acc3bcc9

Reverted back to baseline

2026-10-01 permalink

Scored
answered
Received
2026-10-01 09:16:51 UTC
Run
20261001T090007Z-857bc9
Served by
OpenAI · HTTP 200 · finish stop
Size
845 characters · 414 tokens out incl. hidden reasoning · 8.7 s
Extracted picks, in order · confidence high
  1. Bose QuietComfort Ultra Headphones
  2. Sony WH-1000XM6
  3. Bose QuietComfort Headphones
  4. Sennheiser Momentum 4 Wireless
  5. Apple AirPods Max

Highlighted: the names the extractor took as picks, where they appear verbatim (5 of 5).

## Top 5 noise-cancelling headphones for long-haul flights
1. **Bose QuietComfort Ultra Headphones** — Best overall for class-leading ANC, lightweight comfort, and excellent cabin-pressure noise reduction.
2. **Sony WH-1000XM6** — Superb ANC, sound quality, call performance, and roughly 30-hour battery life.
3. **Bose QuietComfort Headphones** — Extremely comfortable, foldable, and nearly as effective as the Ultra at a lower price.
4. **Sennheiser Momentum 4 Wireless** — Best for battery life—up to about 60 hours—with strong sound and good ANC.
5. **Apple AirPods Max (USB‑C)** — Excellent noise cancellation and transparency mode, particularly for Apple users, but heavier and limited to around 20 hours.
**Best single pick:** Bose QuietComfort Ultra
**Best battery:** Sennheiser Momentum 4
**Best value:** Bose QuietComfort

End of response · 11 lines · 845 characters · sha256 8738324dd90ff0938724be347098e57d61c0087f46e4e2d5a5495e7b2f8e4068

Record detailsShowHideModel version, runs, baseline, triage, permalink, event ID
Model
openai/gpt-5.6-sol
pinned openai/gpt-5.6-sol-20260709; alias resolved to openai/gpt-5.6-sol-20260709 at 2026-10-01 09:00:06 UTC (matches the pin)
Prompt
Question 24: P3 (recommendation)
Why this question
Asking for a ranked list makes a change in the order easy to see.
Change
same picks, new order
Baseline
7 prior days with data; 3 matched the baseline value (2026-09-25, 2026-09-26, 2026-09-30)
Responses
deviation 2026-09-30 09:15:34 UTC, run 20260930T090007Z-45ce12; reverted 2026-10-01 09:16:51 UTC, run 20261001T090007Z-857bc9
Detected
2026-10-01 · run 20261001T090007Z-857bc9, started 2026-10-01 09:00:07 UTC · scorer v1 · severity rules r2
Permalink
https://modeldrift.watch/e/2026-10-01/P3/openai/gpt-5.6-sol/transient_anomaly/picks/
Event ID
2026-10-01:P3:openai/gpt-5.6-sol:transient_anomaly:picks

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