MODELDRIFT.WATCH

Oct 2 · Day 23

MINOR · GEMINI · QUESTION 24

Gemini 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.

OCT 1the changePermalink

Picks read from the answer, in order
  1. Bose QuietComfort Ultra
  2. Sony WH-1000XM4
  3. Sennheiser Momentum 4 Wireless
  4. Sony WH-1000XM5
  5. Bose QuietComfort

When ranking headphones specifically for long-haul flights, the criteria shift slightly away from pure audiophile sound quality and focus heavily on four things: Active Noise Cancellation (ANC) to block engine drone, clamping force/comfort for 10+ hours of wear, battery life, and portability (how well they fit in a carry-on).

Here is the ranked top 5 list based on those specific travel needs:

1. Bose: QuietComfort Ultra

  • •Why it ranks #1 for travel: Bose has always been the king of airplane travel, and the Ultra is their masterpiece. The ANC is arguably the best on the market at completely erasing the low-frequency rumble of airplane engines. More importantly, they are incredibly lightweight with low clamping force, meaning you can wear them for a 14-hour flight without getting a headache. Unlike some newer competitors, they fold up compactly into a travel-friendly case.
  • •Battery Life: Up to 24 hours.

2. Sony: WH-1000XM4

  • •Why it ranks #2 (and beats its newer sibling): You might wonder why the older XM4 beats the newer Sony XM5 on a travel list. It comes down to design: the XM4 has folding hinges; the XM5 does not. The XM4 folds down into a tiny footprint for your carry-on, whereas the XM5 requires a massive, bulky case. The XM4 still offers world-class ANC, excellent comfort, and an included two-prong airplane adapter in the case.
  • •Battery Life: Up to 30 hours.

3. Sennheiser: Momentum 4 Wireless

  • •Why it ranks #3: Battery life. The Momentum 4 boasts a staggering 60 hours of battery life with ANC turned on. For long-haul travelers, this means you can fly from New York to Singapore, endure a layover, and fly all the way back without ever taking your charging cable out of your bag. While the ANC isn't quite as magical as Bose or Sony, it is still excellent, and the sound quality is arguably the best on this list.
  • •Battery Life: Up to 60 hours.

4. Sony: WH-1000XM5

  • •Why it ranks #4: If this were a general "best headphones" list, the XM5 would likely be #1. The ANC is phenomenal (it adapts automatically to your environment and changes in cabin pressure), and they sound fantastic. However, for a frequent flyer, the fact that they do not fold and require a very large, rigid carrying case is a major annoyance when trying to pack light. If bag space isn't an issue for you, these bump up to the #2 spot.
  • •Battery Life: Up to 30 hours.

5. Bose: QuietComfort (2023 Edition)

  • •Why it ranks #5: Replacing the legendary QC45s, the standard Bose QuietComfort is the quintessential frequent-flyer workhorse. They don't have the fancy spatial audio or premium materials of the Ultra, but they offer the classic Bose formula: brilliant ANC, extreme physical comfort for long periods, physical buttons (which are often easier to use in a dark airplane cabin than touch sensors), and a compact folding design—all at a lower price point than the top contenders.
  • •Battery Life: Up to 24 hours.

A quick tip for your flight: No matter which of these you buy, make sure to pack the 3.5mm audio cable that comes in the box. While Bluetooth is great for your phone or tablet, you will need that cable to plug into the seatback screen for in-flight entertainment!

OCT 2backPermalink

Picks read from the answer, in order
  1. Active Noise Cancellation
  2. Bose QuietComfort Ultra
  3. Sony WH-1000XM4
  4. Sennheiser Momentum 4 Wireless
  5. Sony WH-1000XM5
  6. Bose QuietComfort

When ranking headphones specifically for long-haul flights, the criteria go beyond just sound quality. The perfect flight headphone must excel in four areas: Active Noise Cancellation (ANC) to kill engine drone, all-day comfort (low weight and low clamping force), battery life, and portability (how well they fit into a carry-on).

Here is the ranked top 5 best noise-cancelling headphones for long-haul flights:

1. Bose: QuietComfort Ultra

  • •The Verdict: The absolute best overall travel headphones right now.
  • •Why it’s #1 for flights: Bose has long been the king of airplane travel, and the Ultra is their flagship. The ANC is industry-leading, completely erasing the low-frequency rumble of jet engines. More importantly, Bose headphones are famous for their deep earcups and light clamping force, meaning you can wear these for a 14-hour flight without getting a headache. Unlike their biggest rival (the Sony XM5), the Ultras actually fold down on hinges to save precious space in your personal item.
  • •Battery Life: Up to 24 hours
  • •Weight: 252g

2. Sony: WH-1000XM4

  • •The Verdict: The most practical, travel-friendly choice (and a better flight companion than its newer sibling).
  • •Why it’s #2 for flights: You might wonder why the older XM4 beats the newer XM5 on this list. It comes down to portability. The XM4 folds neatly into a compact, hard-shell case that easily slides into a packed backpack. The newer XM5 does not fold and comes with a massive, bulky case. The XM4 still boasts world-class ANC, brilliant sound, and comes with a 3.5mm cable and a two-prong airline adapter in the box so you can plug right into the seatback screen.
  • •Battery Life: Up to 30 hours
  • •Weight: 254g

3. Sennheiser: Momentum 4 Wireless

  • •The Verdict: The battery life champion.
  • •Why it’s #3 for flights: If you are flying from New York to Singapore, having a layover, and flying back, you won't even need to charge these. The Momentum 4 boasts a staggering 60 hours of battery life with ANC turned on. While the noise cancellation is just a hair below Bose and Sony, the sound quality is arguably better than both. They don't fold up quite as small as the Sony XM4 or Bose QC Ultra, but the infinite battery life makes them a long-haul powerhouse.
  • •Battery Life: Up to 60 hours
  • •Weight: 293g

4. Sony: WH-1000XM5

  • •The Verdict: The best noise cancellation and sound, but penalized for a bulky case.
  • •Why it’s #4 for flights: Purely in terms of technology, this is an incredible piece of hardware. The ANC is arguably the best on the market, creating a near-vacuum of silence in the cabin, and they are incredibly lightweight. The only reason they drop to #4 for frequent flyers is the design: the earcups lay flat but do not fold inward. The carrying case is quite large, which can be annoying if you are traveling light with a small under-seat bag.
  • •Battery Life: Up to 30 hours
  • •Weight: 250g

5. Bose: QuietComfort (2023 Model)

  • •The Verdict: The classic, reliable, no-nonsense travel companion.
  • •Why it’s #5 for flights: Released in late 2023 to replace the legendary QC45, these are the standard "QuietComfort" headphones. They are noticeably cheaper than the QC Ultra, yet still offer top-tier Bose noise cancellation and supreme comfort. Crucially for flights, they use physical, tactile buttons rather than touch controls. When the cabin is pitch black and you are half asleep, it is much easier to press a physical button to pause your movie than to swipe blindly at a touch sensor. They also fold up nice and small.
  • •Battery Life: Up to 24 hours
  • •Weight: 240g

✈️ Frequent Flyer Pro-Tips:

  • •In-Flight Entertainment: All of the headphones above come with an audio cable to plug into the armrest/screen. However, to stay wireless, consider buying a Bluetooth transmitter like the Twelve South AirFly. You plug it into the plane's headphone jack, and it transmits the audio via Bluetooth to your headphones.
  • •Side-Sleepers: If you try to sleep with your head resting sideways on a plane window or travel pillow, over-ear headphones will dig into your head. If this is you, skip over-ears entirely and get the Bose QuietComfort Ultra Earbuds or Apple AirPods Pro 2 instead.
Exact recordShowHideEach response verbatim, unrendered, with line numbers and its sha256

Deviation the day it changed

2026-10-01 permalink

Scored
answered
Received
2026-10-01 09:17:35 UTC
Run
20261001T090007Z-857bc9
Served by
Google · HTTP 200 · finish stop
Size
3,285 characters · 1,936 tokens out incl. hidden reasoning · 16.6 s
Extracted picks, in order · confidence high
  1. Bose QuietComfort Ultra
  2. Sony WH-1000XM4
  3. Sennheiser Momentum 4 Wireless
  4. Sony WH-1000XM5
  5. Bose QuietComfort

Highlighted: the names the extractor took as picks, where they appear verbatim (1 of 5).

When ranking headphones specifically for **long-haul flights**, the criteria shift slightly away from pure audiophile sound quality and focus heavily on four things: **Active Noise Cancellation (ANC) to block engine drone, clamping force/comfort for 10+ hours of wear, battery life, and portability (how well they fit in a carry-on).**
Here is the ranked top 5 list based on those specific travel needs:
### 1. Bose: QuietComfort Ultra
* **Why it ranks #1 for travel:** Bose has always been the king of airplane travel, and the Ultra is their masterpiece. The ANC is arguably the best on the market at completely erasing the low-frequency rumble of airplane engines. More importantly, they are incredibly lightweight with low clamping force, meaning you can wear them for a 14-hour flight without getting a headache. Unlike some newer competitors, **they fold up compactly** into a travel-friendly case.
* **Battery Life:** Up to 24 hours.
### 2. Sony: WH-1000XM4
* **Why it ranks #2 (and beats its newer sibling):** You might wonder why the older XM4 beats the newer Sony XM5 on a travel list. It comes down to design: **the XM4 has folding hinges; the XM5 does not.** The XM4 folds down into a tiny footprint for your carry-on, whereas the XM5 requires a massive, bulky case. The XM4 still offers world-class ANC, excellent comfort, and an included two-prong airplane adapter in the case.
* **Battery Life:** Up to 30 hours.
### 3. Sennheiser: Momentum 4 Wireless
* **Why it ranks #3:** **Battery life.** The Momentum 4 boasts a staggering **60 hours** of battery life with ANC turned on. For long-haul travelers, this means you can fly from New York to Singapore, endure a layover, and fly all the way back without ever taking your charging cable out of your bag. While the ANC isn't *quite* as magical as Bose or Sony, it is still excellent, and the sound quality is arguably the best on this list.
* **Battery Life:** Up to 60 hours.
### 4. Sony: WH-1000XM5
* **Why it ranks #4:** If this were a general "best headphones" list, the XM5 would likely be #1. The ANC is phenomenal (it adapts automatically to your environment and changes in cabin pressure), and they sound fantastic. However, for a frequent flyer, the fact that they do not fold and require a very large, rigid carrying case is a major annoyance when trying to pack light. If bag space isn't an issue for you, these bump up to the #2 spot.
* **Battery Life:** Up to 30 hours.
### 5. Bose: QuietComfort (2023 Edition)
* **Why it ranks #5:** Replacing the legendary QC45s, the standard Bose QuietComfort is the quintessential frequent-flyer workhorse. They don't have the fancy spatial audio or premium materials of the Ultra, but they offer the classic Bose formula: brilliant ANC, extreme physical comfort for long periods, physical buttons (which are often easier to use in a dark airplane cabin than touch sensors), and a compact folding design—all at a lower price point than the top contenders.
* **Battery Life:** Up to 24 hours.
**A quick tip for your flight:** No matter which of these you buy, **make sure to pack the 3.5mm audio cable** that comes in the box. While Bluetooth is great for your phone or tablet, you will need that cable to plug into the seatback screen for in-flight entertainment!

End of response · 25 lines · 3,285 characters · sha256 8ae37cafcb25b9cf8b0a1aa88662b45f616222e7faff3dab78a77f2d832c13b8

Reverted back to baseline

2026-10-02 permalink

Scored
answered
Received
2026-10-02 09:17:23 UTC
Run
20261002T090008Z-e178a0
Served by
Google · HTTP 200 · finish stop
Size
4,348 characters · 2,349 tokens out incl. hidden reasoning · 22.4 s
Extracted picks, in order · confidence high
  1. Active Noise Cancellation
  2. Bose QuietComfort Ultra
  3. Sony WH-1000XM4
  4. Sennheiser Momentum 4 Wireless
  5. Sony WH-1000XM5
  6. Bose QuietComfort

Highlighted: the names the extractor took as picks, where they appear verbatim (3 of 6).

When ranking headphones specifically for **long-haul flights**, the criteria go beyond just sound quality. The perfect flight headphone must excel in four areas: **Active Noise Cancellation (ANC)** to kill engine drone, **all-day comfort** (low weight and low clamping force), **battery life**, and **portability** (how well they fit into a carry-on).
Here is the ranked top 5 best noise-cancelling headphones for long-haul flights:
### 1. Bose: QuietComfort Ultra
* **The Verdict:** The absolute best overall travel headphones right now.
* **Why it’s #1 for flights:** Bose has long been the king of airplane travel, and the Ultra is their flagship. The ANC is industry-leading, completely erasing the low-frequency rumble of jet engines. More importantly, Bose headphones are famous for their deep earcups and light clamping force, meaning you can wear these for a 14-hour flight without getting a headache. Unlike their biggest rival (the Sony XM5), the Ultras actually fold down on hinges to save precious space in your personal item.
* **Battery Life:** Up to 24 hours
* **Weight:** 252g
### 2. Sony: WH-1000XM4
* **The Verdict:** The most practical, travel-friendly choice (and a better flight companion than its newer sibling).
* **Why it’s #2 for flights:** You might wonder why the older XM4 beats the newer XM5 on this list. It comes down to portability. The XM4 folds neatly into a compact, hard-shell case that easily slides into a packed backpack. The newer XM5 does not fold and comes with a massive, bulky case. The XM4 still boasts world-class ANC, brilliant sound, and comes with a 3.5mm cable and a two-prong airline adapter in the box so you can plug right into the seatback screen.
* **Battery Life:** Up to 30 hours
* **Weight:** 254g
### 3. Sennheiser: Momentum 4 Wireless
* **The Verdict:** The battery life champion.
* **Why it’s #3 for flights:** If you are flying from New York to Singapore, having a layover, and flying back, you won't even need to charge these. The Momentum 4 boasts a staggering **60 hours of battery life** with ANC turned on. While the noise cancellation is just a hair below Bose and Sony, the sound quality is arguably better than both. They don't fold up quite as small as the Sony XM4 or Bose QC Ultra, but the infinite battery life makes them a long-haul powerhouse.
* **Battery Life:** Up to 60 hours
* **Weight:** 293g
### 4. Sony: WH-1000XM5
* **The Verdict:** The best noise cancellation and sound, but penalized for a bulky case.
* **Why it’s #4 for flights:** Purely in terms of technology, this is an incredible piece of hardware. The ANC is arguably the best on the market, creating a near-vacuum of silence in the cabin, and they are incredibly lightweight. The only reason they drop to #4 for *frequent flyers* is the design: the earcups lay flat but do not fold inward. The carrying case is quite large, which can be annoying if you are traveling light with a small under-seat bag.
* **Battery Life:** Up to 30 hours
* **Weight:** 250g
### 5. Bose: QuietComfort (2023 Model)
* **The Verdict:** The classic, reliable, no-nonsense travel companion.
* **Why it’s #5 for flights:** Released in late 2023 to replace the legendary QC45, these are the standard "QuietComfort" headphones. They are noticeably cheaper than the QC Ultra, yet still offer top-tier Bose noise cancellation and supreme comfort. Crucially for flights, they use physical, tactile buttons rather than touch controls. When the cabin is pitch black and you are half asleep, it is much easier to press a physical button to pause your movie than to swipe blindly at a touch sensor. They also fold up nice and small.
* **Battery Life:** Up to 24 hours
* **Weight:** 240g
***
### ✈️ Frequent Flyer Pro-Tips:
* **In-Flight Entertainment:** All of the headphones above come with an audio cable to plug into the armrest/screen. However, to stay wireless, consider buying a Bluetooth transmitter like the **Twelve South AirFly**. You plug it into the plane's headphone jack, and it transmits the audio via Bluetooth to your headphones.
* **Side-Sleepers:** If you try to sleep with your head resting sideways on a plane window or travel pillow, over-ear headphones will dig into your head. If this is you, skip over-ears entirely and get the **Bose QuietComfort Ultra Earbuds** or **Apple AirPods Pro 2** instead.

End of response · 39 lines · 4,348 characters · sha256 91aaba3b0516d71193431fb2a6319d64c023ab9728cfa6576e106fa64ac62d92

Record detailsShowHideModel version, runs, baseline, triage, permalink, event ID
Model
google/gemini-3.1-pro-preview
pinned google/gemini-3.1-pro-preview-20260219; alias resolved to google/gemini-3.1-pro-preview-20260219 at 2026-10-02 09:00:07 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
first extracted pick differs from the baseline's (full lists below)
Baseline
7 prior days with data; 5 matched the baseline value (2026-09-25, 2026-09-27, 2026-09-28, 2026-09-30, 2026-10-01)
Responses
deviation 2026-10-01 09:17:35 UTC, run 20261001T090007Z-857bc9; reverted 2026-10-02 09:17:23 UTC, run 20261002T090008Z-e178a0
Detected
2026-10-02 · run 20261002T090008Z-e178a0, started 2026-10-02 09:00:08 UTC · scorer v1 · severity rules r2
Permalink
https://modeldrift.watch/e/2026-10-02/P3/google/gemini-3.1-pro-preview/transient_anomaly/picks.top/
Event ID
2026-10-02:P3:google/gemini-3.1-pro-preview:transient_anomaly:picks.top

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