MODELDRIFT.WATCH

Sep 16 · Day 7

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.

SEP 15the changePermalink

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

When evaluating headphones specifically for long-haul flights, three factors matter above all else: Active Noise Cancellation (ANC) to drown out the engine drone, physical comfort for 10+ hours of wear, and long battery life.

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

1. Bose QuietComfort Ultra

  • •The Verdict: The undisputed king of long-haul travel.
  • •Why it ranks #1: Bose has long been the gold standard for airplane travel, and the Ultras perfect the formula. They offer arguably the best ANC on the market for low-frequency rumble (like airplane engines). More importantly, the clamping force is incredibly gentle, making them comfortable enough to sleep in. Unlike its closest competitors, they also fold down compactly into a travel-friendly case.
  • •Battery Life: Up to 24 hours.

2. Sony WH-1000XM5

  • •The Verdict: The smartest noise-canceller and best all-rounder.
  • •Why it ranks #2: Sony’s ANC technology is brilliant, automatically adapting to changes in cabin pressure and your environment. The sound quality is exceptional, they are incredibly lightweight, and the microphones are unmatched if you need to take a call during a layover. The only reason they rank second for travel is their design: they do not fold, meaning they come in a rather bulky travel case that takes up a lot of room in a personal carry-on.
  • •Battery Life: Up to 30 hours.

3. Sennheiser Momentum 4 Wireless

  • •The Verdict: The absolute battery champion.
  • •Why it ranks #3: If you are flying from New York to Sydney and hate dealing with charging cables, these are for you. They boast an astonishing 60 hours of battery life with ANC turned on. They also feature audiophile-grade sound quality that easily beats Bose and rivals Sony. The ANC is excellent, though just a hair less powerful against engine drone than the Bose Ultras or Sony XM5s.
  • •Battery Life: Up to 60 hours.

4. Sony WH-1000XM4

  • •The Verdict: The practical traveler's favorite (and best value).
  • •Why it ranks #4: Even though the XM5s replaced them, Sony still manufactures the XM4s because frequent flyers love them. Why? Because unlike the newer XM5s, the XM4s fold up on hinges into a very compact, durable travel case. The ANC and sound quality are still in the top 5% of all headphones on the market, and because they are an older model, you can often find them on significant discount.
  • •Battery Life: Up to 30 hours.

5. Apple AirPods Max

  • •The Verdict: Unmatched build quality and ANC, but heavy.
  • •Why it ranks #5: If you are deep in the Apple ecosystem, the seamless device switching and Spatial Audio are fantastic. Their ANC is virtually magical on an airplane, and the "Transparency Mode" is the best in the industry when you need to talk to a flight attendant. However, they drop to #5 for long-haul flights because of two major travel flaws: they are very heavy (which can cause neck/head fatigue after 6+ hours) and they come with a flimsy "Smart Case" that offers zero protection in a crammed backpack.
  • •Battery Life: Up to 20 hours.

Travel Pro-Tip: If you want to use any of these wireless headphones with the airplane's seatback in-flight entertainment system, pick up a Bluetooth transmitter like the Twelve South AirFly. It plugs into the headphone jack on the plane and broadcasts the movie audio via Bluetooth to your headphones.

SEP 16backPermalink

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

Here is the ranked top 5 list of the best noise-cancelling headphones for long-haul flights.

These rankings are based on the three most critical factors for air travel: Active Noise Cancellation (ANC) to block engine drone, physical comfort for 10+ hours of wear, and battery life.

1. Sony WH-1000XM5

  • •The Verdict: Best Overall for Travel
  • •Battery Life: 30 hours (with ANC on)
  • •Why it ranks #1: Sony has perfected the balance of sound, comfort, and noise cancellation. The Auto NC Optimizer automatically adjusts the noise-cancelling based on your environment and atmospheric pressure (perfect for flying). They are incredibly lightweight with plush earcups, making them easy to wear for ultra-long flights.
  • •Note: They do not fold at the hinges like older models, so the travel case is a bit large, but the performance justifies the space.

2. Bose QuietComfort Ultra

  • •The Verdict: Best for Pure Comfort and ANC
  • •Battery Life: 24 hours (with ANC on)
  • •Why it ranks #2: Bose is the historical king of airplane travel, and the QC Ultras are their newest flagship. They offer arguably the best ANC on the market, completely erasing low-end cabin rumble. True to their name, the clamping force is incredibly gentle, making them ideal for people who usually get headaches from wearing headphones. They also fold down compactly into a very travel-friendly case.

3. Sennheiser Momentum 4 Wireless

  • •The Verdict: Best Battery Life and Sound Quality
  • •Battery Life: 60 hours (with ANC on)
  • •Why it ranks #3: If you are taking a 15-hour flight, having a long layover, and taking another flight, these are the headphones you want. The 60-hour battery life is practically unmatched. Furthermore, Sennheiser delivers the best out-of-the-box sound quality for music lovers. The ANC is excellent, though just a microscopic step below Bose and Sony.

4. Sony WH-1000XM4

  • •The Verdict: Best Value and Portability
  • •Battery Life: 30 hours (with ANC on)
  • •Why it ranks #4: Even though the XM5s (#1) replaced them, the older XM4s remain on this list for one massive reason: they fold up. If carry-on bag space is at a premium, the XM4s fold into a tiny, hard-shell case. Because they are a slightly older model, they are frequently on sale, offering top-tier ANC and 30 hours of battery life at a much better price than the current flagships.

5. Apple AirPods Max

  • •The Verdict: Best for Apple Ecosystem Users
  • •Battery Life: 20 hours (with ANC on)
  • •Why it ranks #5: If you are watching movies on an iPad or Mac during your flight, the Spatial Audio feature on the AirPods Max creates a private, movie-theater-like experience. The ANC is phenomenal, and the build quality is premium aluminum and mesh.
  • •Why it isn't higher: They are noticeably heavier than Sony and Bose (which can cause neck fatigue on a 12-hour flight), the battery life is the shortest on this list, and you have to buy a separate (and expensive) Apple cable if you want to plug them into the seatback screen.

✈️ Frequent Flyer Pro-Tip: With the exception of the Apple AirPods Max, all of the headphones on this list come with an audio cable in the case so you can plug them directly into the airplane's seatback in-flight entertainment system.

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

Deviation the day it changed

2026-09-15 permalink

Scored
answered
Received
2026-09-15 09:18:21 UTC
Run
20260915T090004Z-599f39
Served by
Google · HTTP 200 · finish stop
Size
3,449 characters · 1,829 tokens out incl. hidden reasoning · 16.5 s
Extracted picks, in order · confidence high
  1. Bose QuietComfort Ultra
  2. Sony WH-1000XM5
  3. Sennheiser Momentum 4 Wireless
  4. Sony WH-1000XM4
  5. Apple AirPods Max

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

When evaluating headphones specifically for **long-haul flights**, three factors matter above all else: Active Noise Cancellation (ANC) to drown out the engine drone, physical comfort for 10+ hours of wear, and long battery life.
Here is the ranked top 5 list based on those travel-specific criteria:
### 1. Bose QuietComfort Ultra
* **The Verdict:** The undisputed king of long-haul travel.
* **Why it ranks #1:** Bose has long been the gold standard for airplane travel, and the Ultras perfect the formula. They offer arguably the best ANC on the market for low-frequency rumble (like airplane engines). More importantly, the clamping force is incredibly gentle, making them comfortable enough to sleep in. Unlike its closest competitors, they also fold down compactly into a travel-friendly case.
* **Battery Life:** Up to 24 hours.
### 2. Sony WH-1000XM5
* **The Verdict:** The smartest noise-canceller and best all-rounder.
* **Why it ranks #2:** Sony’s ANC technology is brilliant, automatically adapting to changes in cabin pressure and your environment. The sound quality is exceptional, they are incredibly lightweight, and the microphones are unmatched if you need to take a call during a layover. The *only* reason they rank second for travel is their design: they do not fold, meaning they come in a rather bulky travel case that takes up a lot of room in a personal carry-on.
* **Battery Life:** Up to 30 hours.
### 3. Sennheiser Momentum 4 Wireless
* **The Verdict:** The absolute battery champion.
* **Why it ranks #3:** If you are flying from New York to Sydney and hate dealing with charging cables, these are for you. They boast an astonishing **60 hours** of battery life with ANC turned on. They also feature audiophile-grade sound quality that easily beats Bose and rivals Sony. The ANC is excellent, though just a hair less powerful against engine drone than the Bose Ultras or Sony XM5s.
* **Battery Life:** Up to 60 hours.
### 4. Sony WH-1000XM4
* **The Verdict:** The practical traveler's favorite (and best value).
* **Why it ranks #4:** Even though the XM5s replaced them, Sony still manufactures the XM4s because frequent flyers love them. Why? Because unlike the newer XM5s, the XM4s **fold up on hinges** into a very compact, durable travel case. The ANC and sound quality are still in the top 5% of all headphones on the market, and because they are an older model, you can often find them on significant discount.
* **Battery Life:** Up to 30 hours.
### 5. Apple AirPods Max
* **The Verdict:** Unmatched build quality and ANC, but heavy.
* **Why it ranks #5:** If you are deep in the Apple ecosystem, the seamless device switching and Spatial Audio are fantastic. Their ANC is virtually magical on an airplane, and the "Transparency Mode" is the best in the industry when you need to talk to a flight attendant. However, they drop to #5 for long-haul flights because of two major travel flaws: they are very heavy (which can cause neck/head fatigue after 6+ hours) and they come with a flimsy "Smart Case" that offers zero protection in a crammed backpack.
* **Battery Life:** Up to 20 hours.
***Travel Pro-Tip:*** *If you want to use any of these wireless headphones with the airplane's seatback in-flight entertainment system, pick up a Bluetooth transmitter like the **Twelve South AirFly**. It plugs into the headphone jack on the plane and broadcasts the movie audio via Bluetooth to your headphones.*

End of response · 30 lines · 3,449 characters · sha256 388d24690dbda2741c41ce1305061819f51f68f3042e4523e5148c943c4906c7

Reverted back to baseline

2026-09-16 permalink

Scored
answered
Received
2026-09-16 09:18:55 UTC
Run
20260916T090004Z-fdcf7b
Served by
Google · HTTP 200 · finish stop
Size
3,361 characters · 1,898 tokens out incl. hidden reasoning · 17.1 s
Extracted picks, in order · confidence high
  1. Active Noise Cancellation
  2. Sony WH-1000XM5
  3. Bose QuietComfort Ultra
  4. Sennheiser Momentum 4 Wireless
  5. Sony WH-1000XM4
  6. Apple AirPods Max

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

Here is the ranked top 5 list of the best noise-cancelling headphones for long-haul flights.
These rankings are based on the three most critical factors for air travel: **Active Noise Cancellation (ANC) to block engine drone, physical comfort for 10+ hours of wear, and battery life.**
### 1. Sony WH-1000XM5
* **The Verdict:** *Best Overall for Travel*
* **Battery Life:** 30 hours (with ANC on)
* **Why it ranks #1:** Sony has perfected the balance of sound, comfort, and noise cancellation. The Auto NC Optimizer automatically adjusts the noise-cancelling based on your environment and atmospheric pressure (perfect for flying). They are incredibly lightweight with plush earcups, making them easy to wear for ultra-long flights.
* *Note:* They do not fold at the hinges like older models, so the travel case is a bit large, but the performance justifies the space.
### 2. Bose QuietComfort Ultra
* **The Verdict:** *Best for Pure Comfort and ANC*
* **Battery Life:** 24 hours (with ANC on)
* **Why it ranks #2:** Bose is the historical king of airplane travel, and the QC Ultras are their newest flagship. They offer arguably the best ANC on the market, completely erasing low-end cabin rumble. True to their name, the clamping force is incredibly gentle, making them ideal for people who usually get headaches from wearing headphones. They also fold down compactly into a very travel-friendly case.
### 3. Sennheiser Momentum 4 Wireless
* **The Verdict:** *Best Battery Life and Sound Quality*
* **Battery Life:** 60 hours (with ANC on)
* **Why it ranks #3:** If you are taking a 15-hour flight, having a long layover, and taking another flight, these are the headphones you want. The 60-hour battery life is practically unmatched. Furthermore, Sennheiser delivers the best out-of-the-box sound quality for music lovers. The ANC is excellent, though just a microscopic step below Bose and Sony.
### 4. Sony WH-1000XM4
* **The Verdict:** *Best Value and Portability*
* **Battery Life:** 30 hours (with ANC on)
* **Why it ranks #4:** Even though the XM5s (#1) replaced them, the older XM4s remain on this list for one massive reason: **they fold up**. If carry-on bag space is at a premium, the XM4s fold into a tiny, hard-shell case. Because they are a slightly older model, they are frequently on sale, offering top-tier ANC and 30 hours of battery life at a much better price than the current flagships.
### 5. Apple AirPods Max
* **The Verdict:** *Best for Apple Ecosystem Users*
* **Battery Life:** 20 hours (with ANC on)
* **Why it ranks #5:** If you are watching movies on an iPad or Mac during your flight, the Spatial Audio feature on the AirPods Max creates a private, movie-theater-like experience. The ANC is phenomenal, and the build quality is premium aluminum and mesh.
* *Why it isn't higher:* They are noticeably heavier than Sony and Bose (which can cause neck fatigue on a 12-hour flight), the battery life is the shortest on this list, and you have to buy a separate (and expensive) Apple cable if you want to plug them into the seatback screen.
***
**✈️ Frequent Flyer Pro-Tip:** With the exception of the Apple AirPods Max, all of the headphones on this list come with an audio cable in the case so you can plug them directly into the airplane's seatback in-flight entertainment system.

End of response · 34 lines · 3,361 characters · sha256 46fc5c1bdfa9c47b6afa27bcaba27b9775839e955fb13d559b09ee9dae338404

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 2026-09-16 09:00:03 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
6 prior days with data; 3 matched the baseline value (2026-09-11, 2026-09-13, 2026-09-15)
Responses
deviation 2026-09-15 09:18:21 UTC, run 20260915T090004Z-599f39; reverted 2026-09-16 09:18:55 UTC, run 20260916T090004Z-fdcf7b
Detected
2026-09-16 · run 20260916T090004Z-fdcf7b, started 2026-09-16 09:00:04 UTC · scorer v1 · severity rules r2
Permalink
https://modeldrift.watch/e/2026-09-16/P3/google/gemini-3.1-pro-preview/transient_anomaly/picks.top/
Event ID
2026-09-16:P3:google/gemini-3.1-pro-preview:transient_anomaly:picks.top

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