Observation period — public launch soon. The record below is real and updated daily.

Significant Top-pick change·recommendation·2026-09-11

Gemini 3.1 Pro Preview gives a different first recommendation (as extracted).

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 2026-09-11 09:00:01 UTC (matches the pin)
Prompt: P3 (recommendation)
Change: first extracted pick differs from the baseline's (full lists below)
Baseline: 1 prior day with data; 1 matched the baseline value (2026-09-10)
Detected: 2026-09-11 · run 20260911T090002Z-da0dd3 (2026-09-11 09:00:02 UTC) · scorer v1
Severity: significant — rule: a change of the #1 pick is significant
Event ID: 2026-09-11:P3:google/gemini-3.1-pro-preview:pick_change:picks.top
Permalink: https://modeldrift.watch/e/2026-09-11/P3/google/gemini-3.1-pro-preview/pick_change/picks.top/

Prompt P3sent verbatim

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

Why this prompt Explicit rank request makes ordinal drift scoreable.

Before baseline

2026-09-10

Scored: answered
Received: 2026-09-10 22:28:12 UTC
Run: 20260910T221001Z-bb5bd1
Served by: Google · finish stop
Size: 3,156 characters · 1,921 tokens out incl. hidden reasoning · 16.2 s

Extracted picks, in order · confidence high

Bose QuietComfort Ultra Headphones
Sony WH-1000XM4
Sennheiser Momentum 4 Wireless
Sony WH-1000XM5
Bose QuietComfort

Highlighted: the names the extractor took as picks, where they appear verbatim (0 of 5).

When ranking headphones specifically for **long-haul flights**, the criteria shift slightly compared to everyday use. Active Noise Cancellation (ANC) to kill engine drone, long-wearing comfort, battery life, and portability (case size) become the most important factors.
Here is the ranked top 5 list of the best noise-cancelling headphones for long-haul flights:
### 1. Bose: QuietComfort Ultra Headphones
* **Why it ranks #1:** Bose has long been the king of aviation, and the Ultras are their current masterpiece. They offer arguably the best ANC on the consumer market, completely erasing the low-end rumble of a jet engine. They are incredibly lightweight, feature plush earcups with low clamping force (crucial for 10+ hour wear), and crucially for travel, **they fold up on hinges** into a compact travel case. 
* **Battery:** 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 XM5 here. The answer is **portability**. The XM4s fold on hinges into a small, highly packable case, whereas the newer XM5s do not. The XM4s offer phenomenal, top-tier ANC, a highly customizable sound profile, and are incredibly comfortable for long flights. For frequent flyers, this is still the ultimate all-rounder.
* **Battery:** Up to 30 hours.
### 3. Sennheiser: Momentum 4 Wireless
* **Why it ranks #3:** The Momentum 4 earns this spot for two reasons: supreme sound quality and an absolutely absurd **60-hour battery life**. You can fly from New York to Singapore, and back, and still have battery left over. While the ANC is *slightly* less powerful than Bose or Sony, it is still excellent and easily handles airplane cabin noise. If you hate charging your devices while traveling, this is your headphone.
* **Battery:** Up to 60 hours.
### 4. Sony: WH-1000XM5
* **Why it ranks #4:** Strictly in terms of technology, the XM5 is slightly superior to the XM4. It has exceptionally smart ANC that automatically adjusts to your environment and fantastic sound quality. However, for a *long-haul flight*, it drops to #4 because the headphones do not fold, meaning the travel case is massive and takes up a lot of room in a carry-on bag. The thinner headband can also cause a slight "hotspot" on top of the head for some users after 8+ hours. 
* **Battery:** Up to 30 hours.
### 5. Bose: QuietComfort (2023 Edition)
* **Why it ranks #5:** The direct replacement for the legendary QC45. If you don't want to pay the premium price for the Bose Ultras, these are the classic travel workhorse. They offer the legendary Bose "cloud-like" comfort, physical buttons (which are much easier to use in a dark, cramped airplane cabin than touch controls), and great ANC. Like the Ultras, they fold up nicely into a small case. 
* **Battery:** Up to 24 hours.
**A quick travel tip:** All five of these headphones come with an included 3.5mm/2.5mm auxiliary cable. Be sure to pack it in your headphone case so you can plug into the in-flight entertainment screens! (You may also want to buy a cheap two-prong airplane adapter on Amazon just in case you fly on an older aircraft).

End of response · 25 lines · 3,156 characters · sha256 5f2edc7719bdbb1299a5ec086706a9d389c3578fd92bbfdc49dafc3357cba0a3

After this run

2026-09-11

Scored: answered
Received: 2026-09-11 09:22:54 UTC
Run: 20260911T090002Z-da0dd3
Served by: Google · finish stop
Size: 3,446 characters · 2,038 tokens out incl. hidden reasoning · 18.7 s

Extracted picks, in order · confidence high

Active Noise Cancellation
Bose QuietComfort Ultra
Sony WH-1000XM5
Sennheiser Momentum 4 Wireless
Sony WH-1000XM4
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 flights, the ranking criteria prioritize **Active Noise Cancellation (to kill engine drone), long-term physical comfort, battery life, and travel portability.**
### 1. Bose QuietComfort Ultra
* **The Best Overall for Flights**
* **Battery Life:** 24 hours
* **Why it ranks #1:** When it comes to airplanes, Bose is still king. The ANC on the Ultra is arguably the best in the world for low-frequency rumbles (like jet engines). More importantly, Bose is famous for its low clamping force. You can wear these for a 14-hour flight without getting a headache. They also fold down compactly into a travel case, unlike some modern competitors.
### 2. Sony WH-1000XM5
* **The Best All-Rounder**
* **Battery Life:** 30 hours
* **Why it ranks #2:** The XM5s are neck-and-neck with Bose. They feature an auto-optimizing ANC system that adjusts to your environment and changes in cabin air pressure. The sound quality is phenomenal, and a 3-minute quick-charge gives you 3 hours of playback—perfect if you forgot to charge them before boarding. *Note: They rank just behind Bose because they do not fold on hinges, meaning the travel case takes up a bit more room in your personal item.*
### 3. Sennheiser Momentum 4 Wireless
* **The Battery & Sound Quality Champion**
* **Battery Life:** 60 hours
* **Why it ranks #3:** If you are flying halfway across the world, dealing with layovers, and flying back, you might never need to charge these. The 60-hour battery life (with ANC turned *on*) is absolutely unmatched. Furthermore, Sennheiser offers the best pure audio quality of any headphone on this list. The ANC isn't quite as powerful as Bose or Sony, but it is more than enough for a peaceful flight. 
### 4. Sony WH-1000XM4
* **The Best for Compact Packing (and Value)**
* **Battery Life:** 30 hours
* **Why it ranks #4:** Even though this is the older generation of Sony headphones, many frequent flyers still prefer them over the newer XM5s. Why? Because the XM4s actually fold flat *and* collapse inward on hinges, making them much easier to stuff into a packed backpack. The ANC is still top-tier, they have a dedicated "Atmospheric Pressure Optimizing" feature specifically for flying, and because they are older, you can often find them at a great discount.
### 5. Apple AirPods Max
* **The Best for the Apple Ecosystem**
* **Battery Life:** 20 hours
* **Why it ranks #5:** If you are watching movies on an iPad or listening to music on an iPhone during your flight, the AirPods Max offer unmatched seamless integration and spatial audio (which makes airplane movies sound like a theater). The ANC is spectacular, and the mesh canopy headband distributes weight incredibly well. *Downsides for travel:* They are heavy, the included "case" offers no protection in a backpack, and you have to buy a separate, specific lightning-to-3.5mm cable if you want to plug into the plane's in-flight entertainment screen. 
***
**Frequent Flyer Pro-Tip:** Don't forget that to use *any* of these with the seatback In-Flight Entertainment (IFE) screens, you will either need to use the included 3.5mm wire (which means buying a cheap two-prong airplane adapter for older planes), or you should purchase a **Bluetooth Transmitter** (like the *AirFly Pro*) which plugs into the airplane screen and connects to your headphones wirelessly.

End of response · 32 lines · 3,446 characters · sha256 1d75e7cb0aa0fb5416920676e6ee8847608e86d4793c1f83f522922ab6e9c9ea

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