Claude Opus 4.6 vs Grok 4.5 for travel planning

# Krakow in February – Cabin Bag Only

*Expect daily highs around −2 °C to 3 °C, with wind chill, icy pavements, and heated museums/restaurants that can feel tropical.*

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## Worn on the Plane (heaviest/bulkiest items)

- Merino wool base-layer top (long-sleeve, mid-weight)
- Merino wool base-layer leggings (under trousers)
- Insulated winter trousers or lined chinos
- Mid-layer fleece or thin down jacket
- Waterproof, windproof outer parka with hood (knee-length if possible)
- Wool or cashmere scarf
- Warm beanie
- Lined leather or insulate…

**Worn on the plane**  
(These are your highest-bulk/warmth items and form the core of the layering system.)

- Merino (or equivalent) long-sleeve base-layer top + base-layer leggings  
- Mid-layer: fitted fleece or lightweight wool sweater  
- Insulated packable down (or synthetic) hooded jacket  
- Softshell or lined winter trousers (or merino-blend pants that accept layers underneath)  
- Warm wool socks + waterproof insulated walking boots  
- Thin liner gloves + proper insulated gloves, merino beanie, and a compact neck gaiter/scarf  
- Ev…