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AI Itinerary Share · Edition 1, 2027 travel year

Where AI-planned trips to California, USA spend the nights

On 7-day trips to California, USA, San Francisco gets 34.2% of the nights. Based on 14 AI-drafted itineraries, which stay in 4.23 places on average.

This destination in the other indexes: AI Shortlist · Source Control

Where the nights go

Share of nights on 7-day trips, with and without a car.

  • San Francisco34.2% · 33 nights
  • Los Angeles25.6% · 25 nights
  • Monterey9.5% · 10 nights
  • San Diego9.2% · 7 nights
  • Santa Barbara8.3% · 9 nights
  • San Luis Obispo3.9% · 4 nights
  • San Simeon1.8% · 1 night
  • Santa Monica1.8% · 1 night
PlaceShare of nightsShare of day visits
San Francisco34.2%0.0%
Los Angeles25.6%0.0%
Monterey9.5%0.0%
San Diego9.2%0.0%
Santa Barbara8.3%0.0%
San Luis Obispo3.9%0.4%
San Simeon1.8%0.0%
Santa Monica1.8%0.0%
Big Sur1.5%0.4%
Anaheim1.5%0.0%
Palm Springs0.9%0.0%
Carmel-by-the-Sea0.6%0.9%

With a rental car versus without a car

California, USA · 7 days · top 8 places · Edition 1, 2027 travel year

Unit: share of nights, percent

The same trip drafted with a rental car and without a car. A share of zero means no itinerary stayed the night there with that option.

Show as table
PlaceWith a rental carWithout a car
San Francisco22.0%46.4%
Los Angeles25.6%25.6%
Monterey13.1%5.9%
San Diego0.0%18.4%
Santa Barbara14.3%2.4%
San Luis Obispo6.6%1.2%
San Simeon3.6%0.0%
Santa Monica3.6%0.0%

Places by trip length

Share of nights at each trip length, with and without a car. Each length is counted on its own.

Unit: share of nights
3 days7 days10 days14 days21 days
San Francisco57.6%34.2%27.1%21.9%19.5%
Los Angeles4.9%25.6%21.9%17.9%15.4%
Monterey19.4%9.5%10.2%7.7%7.3%
San Diego2.8%9.2%18.1%18.3%15.0%
Santa Barbara5.6%8.3%11.7%9.2%8.0%
San Luis Obispo1.4%3.9%2.5%2.2%3.2%
San Simeon4.2%1.8%n/a1.3%0.3%
Santa Monican/a1.8%0.8%0.9%0.2%

Visited, not slept in

Places the itineraries visit for the day without staying the night, on 7-day trips, with the share of all day visits each one gets and the count.

PlaceShare of day visitsDay visits
Chinatown2.7%13
Griffith Observatory2.7%13
Fisherman’s Wharf2.6%12
Golden Gate Bridge2.6%12
Santa Monica Pier2.3%10
Alcatraz Island1.9%9
Cannery Row1.9%9
Golden Gate Park1.9%8
Monterey Bay Aquarium1.9%9
North Beach1.9%9
Getty Center1.7%6
Hollywood Walk of Fame1.5%7

Where each platform puts the most nights

  • Claude: San Francisco (6 itineraries)
  • ChatGPT: San Francisco (4 itineraries)
  • Gemini: San Diego (2 itineraries)
  • Grok: San Francisco (2 itineraries)

Sample itineraries, with a rental car

California, USA · 7 days · with a rental car · one itinerary per model · Edition 1, 2027 travel year

Unit: nights

Where each model's 7-day California, USA itinerary stays the night, day by day. Ticks above a day count the places visited that day.

Show as table
ModelFrom dayStays inNights
Claude Opus 51San Francisco2 nights
Claude Opus 53Monterey1 night
Claude Opus 54Big Sur1 night
Claude Opus 55Santa Barbara1 night
Claude Opus 56Los Angeles (Santa Monica)1 night
Claude Opus 57Los Angeles1 night
Claude Sonnet 51San Francisco1 night
Claude Sonnet 52Monterey1 night
Claude Sonnet 53Cambria1 night
Claude Sonnet 54Santa Barbara1 night
Claude Sonnet 55Los Angeles1 night
Claude Sonnet 56Anaheim1 night
Claude Sonnet 57Los Angeles1 night
Claude Haiku 4.51Los Angeles1 night
Claude Haiku 4.52Santa Barbara1 night
Claude Haiku 4.53San Luis Obispo1 night
Claude Haiku 4.54Carmel-by-the-Sea1 night
Claude Haiku 4.55Santa Cruz1 night
Claude Haiku 4.56San Francisco2 nights
GPT-5.6 Terra1San Francisco2 nights
GPT-5.6 Terra3Monterey1 night
GPT-5.6 Terra4San Luis Obispo1 night
GPT-5.6 Terra5Santa Barbara1 night
GPT-5.6 Terra6Los Angeles2 nights
GPT-5.6 Luna1San Francisco1 night
GPT-5.6 Luna2Monterey1 night
GPT-5.6 Luna3Big Sur1 night
GPT-5.6 Luna4Santa Barbara1 night
GPT-5.6 Luna5Los Angeles1 night
GPT-5.6 Luna6Anaheim1 night
GPT-5.6 Luna7Palm Springs1 night
Gemini 3.8 Flash1San Francisco1 night
Gemini 3.8 Flash2Monterey1 night
Gemini 3.8 Flash3San Simeon1 night
Gemini 3.8 Flash4Santa Barbara1 night
Gemini 3.8 Flash5Santa Monica1 night
Gemini 3.8 Flash6Los Angeles2 nights
Grok 4.61San Francisco2 nights
Grok 4.63Monterey1 night
Grok 4.64San Luis Obispo1 night
Grok 4.65Santa Barbara1 night
Grok 4.66Los Angeles2 nights

Sample itineraries, without a car

California, USA · 7 days · without a car · one itinerary per model · Edition 1, 2027 travel year

Unit: nights

Where each model's 7-day California, USA itinerary stays the night, day by day. Ticks above a day count the places visited that day.

Show as table
ModelFrom dayStays inNights
Claude Opus 51San Francisco3 nights
Claude Opus 54Monterey1 night
Claude Opus 55Monterey (Pacific Grove)1 night
Claude Opus 56Santa Barbara1 night
Claude Opus 57Los Angeles1 night
Claude Sonnet 51San Francisco3 nights
Claude Sonnet 54San Luis Obispo1 night
Claude Sonnet 55Santa Barbara1 night
Claude Sonnet 56Los Angeles2 nights
Claude Haiku 4.51San Francisco3 nights
Claude Haiku 4.54Los Angeles2 nights
Claude Haiku 4.56San Diego2 nights
GPT-5.6 Terra1San Francisco3 nights
GPT-5.6 Terra4Monterey1 night
GPT-5.6 Terra5Los Angeles2 nights
GPT-5.6 Terra7San Diego1 night
GPT-5.6 Luna1San Francisco3 nights
GPT-5.6 Luna4Monterey1 night
GPT-5.6 Luna5Los Angeles3 nights
Gemini 3.8 Flash1San Francisco3 nights
Gemini 3.8 Flash4San Diego4 nights
Grok 4.61San Francisco4 nights
Grok 4.65Los Angeles3 nights

California, USA

Most questions went to each model at each setting only once, and a model read the answers, so a reading can be wrong. The methodology has the details.

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