MODELDRIFT.WATCH

Sep 23 · Day 14

MINOR · GPT · QUESTION 24

GPT changed its list for a request for a ranked top 5 of noise-cancelling headphones.

Why it’s minor

Which products a model recommends is read out of its answer by the least reliable part of our scorer, so compare the two answers before reading much into this.

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 21beforePermalink

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
    Excellent cabin-noise cancellation, exceptionally comfortable fit, and about 24 hours of battery life.
  • 2.Sony WH-1000XM6 — Best balance of ANC, sound and battery
    Top-tier noise cancellation, strong microphone performance, foldable design, and roughly 30 hours per charge.
  • 3.Bose QuietComfort Headphones — Best for comfort and value
    Lighter and usually cheaper than the Ultra, with excellent ANC, physical controls, and around 24 hours of battery life.
  • 4.Sennheiser Momentum 4 Wireless — Best battery life and sound
    Up to 60 hours of playback, spacious sound and good comfort; ANC is strong but slightly behind Bose and Sony.
  • 5.Apple AirPods Max (USB‑C) — Best for Apple users
    Superb ANC, transparency mode and Apple-device integration, but heavier and limited to about 20 hours of battery life.

Best single pick: Bose QuietComfort Ultra for maximum comfort and noise reduction on a long flight.
Best for very long itineraries: Sennheiser Momentum 4 for its 60-hour battery.

SEP 23afterPermalink

Picks read from the answer, in order
  1. Bose QuietComfort Ultra Headphones
  2. Sony WH-1000XM5
  3. Bose QuietComfort Headphones
  4. Sennheiser Momentum 4 Wireless
  5. Sonos Ace

Top 5 noise-cancelling headphones for long-haul flights

RankBrand & modelWhy it’s great for flyingBattery*
1Bose QuietComfort Ultra HeadphonesBest overall combination of cabin-noise cancellation, lightweight comfort, and a foldable travel design.~24 hours
2Sony WH-1000XM5Excellent ANC, strong sound quality, long battery life, and very good microphone performance. Less compact because they don’t fold.~30 hours
3Bose QuietComfort HeadphonesExtremely comfortable, foldable, and nearly as effective on aircraft as the Ultra—often the better-value choice.~24 hours
4Sennheiser Momentum 4 WirelessOutstanding battery life and sound quality; ideal for multi-leg trips, though ANC is slightly behind Bose and Sony.~60 hours
5Sonos AceComfortable, refined sound, effective ANC, and a slim case; especially attractive for Sonos users.~30 hours

\*Approximate battery life with noise cancellation enabled.

Best overall: Bose QuietComfort Ultra
Best value: Bose QuietComfort
Best battery life: Sennheiser Momentum 4
Best alternative for sound and features: Sony WH-1000XM5

For seatback entertainment, check that the package includes a 3.5 mm cable; a two-prong airline adapter can also be useful on older aircraft.

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

Before baseline

2026-09-21 permalink

Scored
answered
Received
2026-09-21 09:18:14 UTC
Run
20260921T090021Z-989a7c
Served by
OpenAI · HTTP 200 · finish stop
Size
1,159 characters · 648 tokens out incl. hidden reasoning · 15.8 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
Excellent cabin-noise cancellation, exceptionally comfortable fit, and about 24 hours of battery life.
2. **Sony WH-1000XM6** — Best balance of ANC, sound and battery
Top-tier noise cancellation, strong microphone performance, foldable design, and roughly 30 hours per charge.
3. **Bose QuietComfort Headphones** — Best for comfort and value
Lighter and usually cheaper than the Ultra, with excellent ANC, physical controls, and around 24 hours of battery life.
4. **Sennheiser Momentum 4 Wireless** — Best battery life and sound
Up to 60 hours of playback, spacious sound and good comfort; ANC is strong but slightly behind Bose and Sony.
5. **Apple AirPods Max (USB‑C)** — Best for Apple users
Superb ANC, transparency mode and Apple-device integration, but heavier and limited to about 20 hours of battery life.
**Best single pick:** **Bose QuietComfort Ultra** for maximum comfort and noise reduction on a long flight.
**Best for very long itineraries:** **Sennheiser Momentum 4** for its 60-hour battery.

End of response · 19 lines · 1,159 characters · sha256 f318f21b5e84487bb1ca68982abcaf147fe8cc435cbab44db8d1a6b3b348f425

After this run

2026-09-23 permalink

Scored
answered
Received
2026-09-23 09:19:20 UTC
Run
20260923T090022Z-9b7b3a
Served by
OpenAI · HTTP 200 · finish stop
Size
1,370 characters · 763 tokens out incl. hidden reasoning · 15.4 s
Extracted picks, in order · confidence high
  1. Bose QuietComfort Ultra Headphones
  2. Sony WH-1000XM5
  3. Bose QuietComfort Headphones
  4. Sennheiser Momentum 4 Wireless
  5. Sonos Ace

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

## Top 5 noise-cancelling headphones for long-haul flights
| Rank | Brand & model | Why it’s great for flying | Battery* |
|---|---|---|---|
| **1** | **Bose QuietComfort Ultra Headphones** | Best overall combination of cabin-noise cancellation, lightweight comfort, and a foldable travel design. | ~24 hours |
| **2** | **Sony WH-1000XM5** | Excellent ANC, strong sound quality, long battery life, and very good microphone performance. Less compact because they don’t fold. | ~30 hours |
| **3** | **Bose QuietComfort Headphones** | Extremely comfortable, foldable, and nearly as effective on aircraft as the Ultra—often the better-value choice. | ~24 hours |
| **4** | **Sennheiser Momentum 4 Wireless** | Outstanding battery life and sound quality; ideal for multi-leg trips, though ANC is slightly behind Bose and Sony. | ~60 hours |
| **5** | **Sonos Ace** | Comfortable, refined sound, effective ANC, and a slim case; especially attractive for Sonos users. | ~30 hours |
\*Approximate battery life with noise cancellation enabled.
**Best overall:** Bose QuietComfort Ultra
**Best value:** Bose QuietComfort
**Best battery life:** Sennheiser Momentum 4
**Best alternative for sound and features:** Sony WH-1000XM5
For seatback entertainment, check that the package includes a 3.5 mm cable; a two-prong airline adapter can also be useful on older aircraft.

End of response · 18 lines · 1,370 characters · sha256 515851c4931ca2190f7788637fdc20306cdbe5710235c6045e94644aa3000018

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 2026-09-23 09:00:22 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
2 added, 2 dropped
Baseline
7 prior days with data; 4 matched the baseline value (2026-09-16, 2026-09-17, 2026-09-19, 2026-09-21)
Responses
before 2026-09-21 09:18:14 UTC, run 20260921T090021Z-989a7c; after 2026-09-23 09:19:20 UTC, run 20260923T090022Z-9b7b3a
Detected
2026-09-23 · run 20260923T090022Z-9b7b3a, started 2026-09-23 09:00:22 UTC · scorer v1 · severity rules r2
Permalink
https://modeldrift.watch/e/2026-09-23/P3/openai/gpt-5.6-sol/pick_change/picks/
Event ID
2026-09-23:P3:openai/gpt-5.6-sol:pick_change:picks

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