MODELDRIFT.WATCH

Sep 13 · Day 4

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 12the changePermalink

Picks read from the answer, in order
  1. Bose
  2. Sony
  3. Sennheiser
  4. Apple

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

When ranking for long-haul travel, the most important factors are Active Noise Cancellation (ANC) to drown out engine drone, long-term physical comfort, battery life, and portability.

1. Bose – QuietComfort Ultra Headphones

  • •Why it ranks #1: Bose has long been the king of aviation audio, and the QC Ultras are their masterpiece. They offer arguably the best ANC on the market for blocking low-frequency airplane engine noise. More importantly, they are incredibly lightweight with gentle clamping force, meaning you can wear them for a 14-hour flight without getting a headache. Unlike their biggest rival (the Sony XM5), they actually fold up compactly into their travel case.
  • •Battery Life: 24 hours

2. Sony – WH-1000XM5

  • •Why it ranks #2: The XM5s are a technological marvel. Their ANC is virtually tied with Bose, and they arguably offer better out-of-the-box sound quality and superior microphone quality (if you need to take a call during a layover). The only reason they sit at #2 for travel is their design: they do not fold on hinges, meaning their carrying case takes up significantly more room in your carry-on backpack than the Bose.
  • •Battery Life: 30 hours

3. Sennheiser – Momentum 4 Wireless

  • •Why it ranks #3: If you absolutely despise having to charge your devices on the road, these are the headphones for you. The Momentum 4 boasts a staggering 60-hour battery life with ANC turned on—enough to fly from New York to Singapore, back to New York, and back to Singapore again on a single charge. The sound quality is arguably the best on this list for audiophiles, though the ANC is just a tiny step below Bose and Sony.
  • •Battery Life: 60 hours

4. Sony – WH-1000XM4

  • •Why it ranks #4: Even though this is the older generation of Sony's flagship line, many frequent flyers actively prefer them over the newer XM5s. Why? Because the XM4s fold down on hinges into a very compact, travel-friendly case. They are frequently discounted now, still offer top-tier ANC and comfort, and are widely considered one of the best travel headphones ever made.
  • •Battery Life: 30 hours

5. Apple – AirPods Max

  • •Why it ranks #5: If you are deeply entrenched in the Apple ecosystem, the AirPods Max offer a seamless experience, incredible spatial audio (great for watching movies on your iPad), and phenomenal ANC. However, they sit at #5 for long-haul flights because of a few distinct travel disadvantages: they are heavy (which can cause neck fatigue on long flights), they don't fold, their included "case" offers no protection in a stuffed backpack, and you have to buy a proprietary Apple cable to plug into the plane's in-flight entertainment system.
  • •Battery Life: 20 hours

A quick travel tip: No matter which pair you buy, make sure to pack the included 3.5mm audio cable in your carrying case! You will need it to plug into the seatback screen to watch in-flight movies. (You may also want to buy a cheap "airplane audio adapter" on Amazon, as some older international planes still use the two-prong audio jacks).

SEP 13backPermalink

Picks read from the answer, in order
  1. Active Noise Cancellation
  2. Bose QuietComfort Ultra
  3. Sony WH-1000XM5
  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 specifically for long-haul flights.

For long-haul travel, the criteria prioritize Active Noise Cancellation (to block engine drone), comfort (for 10+ hours of continuous wear), battery life, and portability.

1. Bose QuietComfort Ultra

  • •The Verdict: The undisputed king of long-haul flights. Bose has always led the pack in comfort, and the Ultras feature a clamping force so gentle you will forget you are wearing them on a 14-hour flight. Their ANC is currently the best in the industry at erasing low-frequency airplane engine roar. Crucially for travelers, they fold up compactly into their case.
  • •Battery Life: Up to 24 hours
  • •Folds for Travel: Yes
  • •Key Travel Feature: "Immersive Audio" makes movies feel like you are in a theater, and the supreme physical comfort means zero ear-fatigue.

2. Sony WH-1000XM5

  • •The Verdict: A very close second. The ANC is elite—particularly at blocking out higher-pitch noises (like a crying baby or chatting passengers) which Bose sometimes misses. They are incredibly lightweight and the sound quality is fantastic. They only lose the top spot because they do not fold on hinges, meaning their carrying case takes up significantly more room in your carry-on backpack.
  • •Battery Life: Up to 30 hours
  • •Folds for Travel: No (earcups fold flat, but do not collapse inward)
  • •Key Travel Feature: "Speak-to-Chat" automatically pauses your movie and turns on transparency mode the second you start talking to a flight attendant.

3. Sennheiser Momentum 4 Wireless

  • •The Verdict: The absolute champion of battery life. If you are flying from New York to Singapore and back, you won't even need to pack the charging cable. They also offer arguably the best, most audiophile-pleasing sound quality on this list. The ANC is excellent, though slightly less "vacuum-like" than Bose or Sony.
  • •Battery Life: Up to 60 hours (with ANC on)
  • •Folds for Travel: No (earcups fold flat only)
  • •Key Travel Feature: The massive battery life eliminates travel anxiety, and the plush headband is highly comfortable for long stints.

4. Sony WH-1000XM4

  • •The Verdict: Even though it is the older generation (replaced by the XM5), frequent flyers often prefer the XM4. Why? Because unlike the XM5, the XM4 folds up tightly on hinges, saving precious bag space. It still boasts world-class noise cancellation, a 30-hour battery, and because it's an older model, you can often find it on steep discount.
  • •Battery Life: Up to 30 hours
  • •Folds for Travel: Yes
  • •Key Travel Feature: The ultimate combination of premium ANC and space-saving portability.

5. Apple AirPods Max

  • •The Verdict: If you live entirely inside the Apple ecosystem, these are a joy to travel with. The ANC is top-tier, and the "Transparency Mode" is so natural it feels like you aren't wearing headphones when listening to pilot announcements. However, they sit at #5 for long-haul travel because they are very heavy (which can cause neck fatigue on a 12-hour flight), the battery life is the shortest on the list, and the "Smart Case" offers zero protection in a crammed travel bag.
  • •Battery Life: Up to 20 hours
  • •Folds for Travel: No (earcups fold flat)
  • •Key Travel Feature: Seamless switching between your iPhone, iPad, and MacBook while in the air.

A quick tip for your flight: All of the headphones above (except the Apple AirPods Max, which requires a separate, expensive cable) come with an auxiliary cable in the box. Don't forget to pack it so you can plug 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

2026-09-12 permalink

Scored
answered
Received
2026-09-12 09:17:40 UTC
Run
20260912T090021Z-c0c86e
Served by
Google · HTTP 200 · finish stop
Size
3,212 characters · 2,120 tokens out incl. hidden reasoning · 18.6 s
Extracted picks, in order · confidence high
  1. Bose
  2. Sony
  3. Sennheiser
  4. Apple

Highlighted: the names the extractor took as picks, where they appear verbatim (4 of 4).

Here is the ranked top 5 list of the best noise-cancelling headphones for long-haul flights.
When ranking for **long-haul travel**, the most important factors are Active Noise Cancellation (ANC) to drown out engine drone, long-term physical comfort, battery life, and portability.
### 1. Bose – QuietComfort Ultra Headphones
* **Why it ranks #1:** Bose has long been the king of aviation audio, and the QC Ultras are their masterpiece. They offer arguably the best ANC on the market for blocking low-frequency airplane engine noise. More importantly, they are incredibly lightweight with gentle clamping force, meaning you can wear them for a 14-hour flight without getting a headache. Unlike their biggest rival (the Sony XM5), they actually fold up compactly into their travel case.
* **Battery Life:** 24 hours
### 2. Sony – WH-1000XM5
* **Why it ranks #2:** The XM5s are a technological marvel. Their ANC is virtually tied with Bose, and they arguably offer better out-of-the-box sound quality and superior microphone quality (if you need to take a call during a layover). The only reason they sit at #2 for *travel* is their design: they do not fold on hinges, meaning their carrying case takes up significantly more room in your carry-on backpack than the Bose.
* **Battery Life:** 30 hours
### 3. Sennheiser – Momentum 4 Wireless
* **Why it ranks #3:** If you absolutely despise having to charge your devices on the road, these are the headphones for you. The Momentum 4 boasts a staggering **60-hour battery life** with ANC turned on—enough to fly from New York to Singapore, back to New York, and back to Singapore again on a single charge. The sound quality is arguably the best on this list for audiophiles, though the ANC is just a tiny step below Bose and Sony.
* **Battery Life:** 60 hours
### 4. Sony – WH-1000XM4
* **Why it ranks #4:** Even though this is the older generation of Sony's flagship line, many frequent flyers actively prefer them over the newer XM5s. Why? Because the XM4s fold down on hinges into a very compact, travel-friendly case. They are frequently discounted now, still offer top-tier ANC and comfort, and are widely considered one of the best travel headphones ever made.
* **Battery Life:** 30 hours
### 5. Apple – AirPods Max
* **Why it ranks #5:** If you are deeply entrenched in the Apple ecosystem, the AirPods Max offer a seamless experience, incredible spatial audio (great for watching movies on your iPad), and phenomenal ANC. However, they sit at #5 for long-haul flights because of a few distinct travel disadvantages: they are heavy (which can cause neck fatigue on long flights), they don't fold, their included "case" offers no protection in a stuffed backpack, and you have to buy a proprietary Apple cable to plug into the plane's in-flight entertainment system.
* **Battery Life:** 20 hours
***
**A quick travel tip:** No matter which pair you buy, make sure to pack the included **3.5mm audio cable** in your carrying case! You will need it to plug into the seatback screen to watch in-flight movies. (You may also want to buy a cheap "airplane audio adapter" on Amazon, as some older international planes still use the two-prong audio jacks).

End of response · 27 lines · 3,212 characters · sha256 9010d87ba5c4818edcbfa1b1ed987705e3d4f4551ead6c3fca51a4901fb32db1

Reverted back to baseline

2026-09-13 permalink

Scored
answered
Received
2026-09-13 09:12:24 UTC
Run
20260913T090021Z-a7390a
Served by
Google · HTTP 200 · finish stop
Size
3,730 characters · 2,311 tokens out incl. hidden reasoning · 20.0 s
Extracted picks, in order · confidence high
  1. Active Noise Cancellation
  2. Bose QuietComfort Ultra
  3. Sony WH-1000XM5
  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 specifically for long-haul flights.
For long-haul travel, the criteria prioritize **Active Noise Cancellation (to block engine drone)**, **comfort (for 10+ hours of continuous wear)**, **battery life**, and **portability**.
### 1. Bose QuietComfort Ultra
* **The Verdict:** The undisputed king of long-haul flights. Bose has always led the pack in comfort, and the Ultras feature a clamping force so gentle you will forget you are wearing them on a 14-hour flight. Their ANC is currently the best in the industry at erasing low-frequency airplane engine roar. Crucially for travelers, they fold up compactly into their case.
* **Battery Life:** Up to 24 hours
* **Folds for Travel:** Yes
* **Key Travel Feature:** "Immersive Audio" makes movies feel like you are in a theater, and the supreme physical comfort means zero ear-fatigue.
### 2. Sony WH-1000XM5
* **The Verdict:** A very close second. The ANC is elite—particularly at blocking out higher-pitch noises (like a crying baby or chatting passengers) which Bose sometimes misses. They are incredibly lightweight and the sound quality is fantastic. They only lose the top spot because they do not fold on hinges, meaning their carrying case takes up significantly more room in your carry-on backpack.
* **Battery Life:** Up to 30 hours
* **Folds for Travel:** No (earcups fold flat, but do not collapse inward)
* **Key Travel Feature:** "Speak-to-Chat" automatically pauses your movie and turns on transparency mode the second you start talking to a flight attendant.
### 3. Sennheiser Momentum 4 Wireless
* **The Verdict:** The absolute champion of battery life. If you are flying from New York to Singapore and back, you won't even need to pack the charging cable. They also offer arguably the best, most audiophile-pleasing sound quality on this list. The ANC is excellent, though slightly less "vacuum-like" than Bose or Sony.
* **Battery Life:** Up to **60 hours** (with ANC on)
* **Folds for Travel:** No (earcups fold flat only)
* **Key Travel Feature:** The massive battery life eliminates travel anxiety, and the plush headband is highly comfortable for long stints.
### 4. Sony WH-1000XM4
* **The Verdict:** Even though it is the older generation (replaced by the XM5), frequent flyers often prefer the XM4. Why? Because unlike the XM5, **the XM4 folds up tightly** on hinges, saving precious bag space. It still boasts world-class noise cancellation, a 30-hour battery, and because it's an older model, you can often find it on steep discount.
* **Battery Life:** Up to 30 hours
* **Folds for Travel:** Yes
* **Key Travel Feature:** The ultimate combination of premium ANC and space-saving portability.
### 5. Apple AirPods Max
* **The Verdict:** If you live entirely inside the Apple ecosystem, these are a joy to travel with. The ANC is top-tier, and the "Transparency Mode" is so natural it feels like you aren't wearing headphones when listening to pilot announcements. However, they sit at #5 for long-haul travel because they are very heavy (which can cause neck fatigue on a 12-hour flight), the battery life is the shortest on the list, and the "Smart Case" offers zero protection in a crammed travel bag.
* **Battery Life:** Up to 20 hours
* **Folds for Travel:** No (earcups fold flat)
* **Key Travel Feature:** Seamless switching between your iPhone, iPad, and MacBook while in the air.
**A quick tip for your flight:** All of the headphones above (except the Apple AirPods Max, which requires a separate, expensive cable) come with an auxiliary cable in the box. Don't forget to pack it so you can plug directly into the airplane's seatback in-flight entertainment system!

End of response · 35 lines · 3,730 characters · sha256 da993b7a7881fe5019b1349d3df8ee1154675990c8b6b4cb8dae8e662a6dab1d

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 2026-09-13 09:00:20 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
3 prior days with data; 2 matched the baseline value (2026-09-11, 2026-09-12)
Responses
deviation 2026-09-12 09:17:40 UTC, run 20260912T090021Z-c0c86e; reverted 2026-09-13 09:12:24 UTC, run 20260913T090021Z-a7390a
Detected
2026-09-13 · run 20260913T090021Z-a7390a, started 2026-09-13 09:00:21 UTC · scorer v1 · severity rules r2
Permalink
https://modeldrift.watch/e/2026-09-13/P3/google/gemini-3.1-pro-preview/transient_anomaly/picks.top/
Event ID
2026-09-13:P3:google/gemini-3.1-pro-preview:transient_anomaly:picks.top

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