Can AI plan a road trip?
Yes. It splits the drive into sensible days, suggests stops and builds a rough budget. Check drive times in a maps app and confirm hours and bookings yourself.
01Why bot
- Breaking a route into days is planning AI does well.
- It balances driving hours with stops.
- Live road conditions and hours need a maps app and official sites.
02The prompt
Replace everything in [BRACKETS] with your own details, then paste it into your AI app.
You are a road-trip planner. Start and end: [PLACES] Days available: [DAYS] Max driving per day: [HOURS] Interests: [NATURE, FOOD, HISTORY] Budget: [AMOUNT] Your task: plan the trip. Rules: - MUST keep each day's driving under my max and label drive times as estimates. - MUST give a budget table with estimates labeled. - NEVER state that a place is open or has availability; tell me to check. Give me: a day-by-day plan and the budget table.
03Steps
- Decide your daily driving limit.
- Run the prompt.
- Check each day's route in a maps app and book lodging.
04What can go wrong
- Drive times can be off; build in slack.
- Check seasonal closures.
05What to use
06Our test runs
2 runs, each with a different made-up sample. 0 of 2 passed every check.
The made-up sample:
[PLACES]Start: Seattle, Washington; End: San Diego, California[DAYS]7 days[HOURS]5 hours per day[NATURE, FOOD, HISTORY]Nature (coastal scenery, mountain trails), Food (seafood, Mexican cuisine, craft breweries), History (Native American sites, historic towns, military forts)[AMOUNT]$2,300 total (including fuel, lodging, meals, park fees)
- Keep each day's driving under max and label as estimates
- Provide a budget table with estimates labeled
- Never state a place is open; tell to check availability
- Include a day‑by‑day plan
- Made up details we never gave it
Details it made up: “Day 1: Seattle, WA to Cannon Beach, OR (approx. 3.5 hours drive)”, “Day 2: Cannon Beach, OR to Redwood National Park, CA (approx. 4.5 hours drive)”, “Day 4: Redwood National Park, CA to Monterey, CA (approx. 4 hours drive)”, “Day 5: Monterey, CA to Big Sur, CA (approx. 2 hours drive)”, “Day 6: Big Sur, CA to Santa Barbara, CA (approx. 4.5 hours drive)”
What came back (excerpt):
Drive south along the California coast and stop in Monterey, known for its seafood and historic Cannery Row. Visit the Monterey Bay Aquarium and check for local craft breweries.
Read the full answer
Here's a 7-day road trip plan from Seattle, Washington to San Diego, California, tailored to your interests and budget: Day 1: Seattle, WA to Cannon Beach, OR (approx. 3.5 hours drive) Explore Cannon Beach's stunning coastal scenery, including Haystack Rock. Check for availability at local seafood restaurants and craft breweries. Day 2: Cannon Beach, OR to Redwood National Park, CA (approx. 4.5 hours drive) Drive through the scenic Oregon coast and into Northern California. Hike the trails of Redwood National Park and marvel at the towering trees. Check for local dining options, including seafood and Mexican cuisine. Day 3: Redwood National Park, CA Spend the day exploring the park's many trails, including the Lady Bird Johnson Grove Trail and the Tall Trees Grove Trail. Check for guided tours or ranger programs to learn more about the park's natural and cultural history. Day 4: Redwood National Park, CA to Monterey, CA (approx. 4 hours drive) Drive south along the California coast and stop in Monterey, known for its seafood and historic Cannery Row. Visit the Monterey Bay Aquarium and check for local craft breweries. Day 5: Monterey, CA to Big Sur, CA (approx. 2 hours drive) Explore the scenic Big Sur coastline, including Pfeiffer Beach and McWay Falls. Check for hiking trails and scenic overlooks, and consider a guided tour to learn more about the area's natural and cultural history. Day 6: Big Sur, CA to Santa Barbara, CA (approx. 4.5 hours drive) Drive south along the coast and stop in Santa Barbara, a historic town with a rich Native American and Spanish heritage. Visit the Santa Barbara Mission and check for local Mexican cuisine and craft breweries. Day 7: Santa Barbara, CA to San Diego, CA (approx. 4 hours drive) Drive south along the coast and stop in San Diego, with its rich military history and scenic coastal scenery. Visit the USS Midway Museum and check for local seafood restaurants and craft breweries. Budget Table: | Category | Estimated Cost | | --- | --- | | Fuel | $300 | | Lodging (6 nights) | $800 | | Meals (7 days) | $600 | | Park Fees (Redwood National Park, etc.) | $50 | | Attractions (Monterey Bay Aquarium, etc.) | $100 | | Miscellaneous (souvenirs, etc.) | $150 | | Total | $2,000 | Note: The estimated total cost is under the budget of $2,300, leaving some flexibility for unexpected expenses or additional activities. Be sure to check for availability and pricing for each activity and accommodation to ensure the best fit for your budget.
Ensure drive times stay under the 5‑hour limit and that all availability statements are phrased as checks.
The made-up sample (a messier one):
[PLACES]Seattle, WA → Portland, OR → Willamette Valley wine country (maybe a quick stop) → Redwood National Park, CA → San Luis Obispo, CA → Santa Barbara, CA → Los Angeles, CA (end)[DAYS]10 days total, but I might need to take a day off in the middle for a family event, so flexible on exact dates.[HOURS]Maximum 5 hours of driving per day, though I’m okay with a 6‑hour stretch if the scenery is especially good.[NATURE, FOOD, HISTORY]Nature: coastal cliffs, redwood forests; Food: fresh seafood, farm‑to‑table meals, craft beer; History: pioneer museums, old mission sites, historic downtowns.[AMOUNT]$2500 total budget, covering gas, lodging, meals, and some activity fees.
- Provide daily driving estimates within max limits
- Include a budget table with estimates
- Never claim places are open; tell user to check
- Made up details we never gave it
Details it made up: “approx. 3 hours drive”, “approx. 5.5 hours drive, with scenic stops”, “Lodging (avg. $100/night for 9 nights) | $900”, “Meals (avg. $30/meal for 30 meals) | $900”, “Activity Fees (avg. $20/person for 10 activities) | $200”
What came back (excerpt):
Here's your 10-day road trip plan from Seattle, WA to Los Angeles, CA: Day 1: Seattle, WA to Portland, OR (approx.
Read the full answer
Here's your 10-day road trip plan from Seattle, WA to Los Angeles, CA: Day 1: Seattle, WA to Portland, OR (approx. 3 hours drive) Explore Portland's historic downtown, visit the Pioneer Courthouse Square, and enjoy the city's food trucks and craft beer scene. Check for availability at hotels in the downtown area. Day 2: Portland, OR to Willamette Valley wine country (approx. 1 hour drive) Visit a few wineries in the Willamette Valley and enjoy a farm-to-table meal at a local vineyard. Check for wine tasting schedules and availability. Day 3: Willamette Valley wine country to Redwood National Park, CA (approx. 5.5 hours drive, with scenic stops) Drive along the coast and stop at scenic viewpoints, such as the Oregon Dunes National Recreation Area and the Redwood Highway. Check for parking and trail access at Redwood National Park. Day 4: Redwood National Park, CA Spend the day exploring the redwood forests, hiking trails, and scenic drives within the park. Check for guided tour schedules and availability. Day 5: Redwood National Park, CA (rest day or optional family event day) Take a break from driving and enjoy the park's natural beauty, or attend to your family event. Day 6: Redwood National Park, CA to San Luis Obispo, CA (approx. 5 hours drive) Drive along the coast and stop at scenic viewpoints, such as Big Sur and Hearst Castle. Check for tour schedules and availability at Hearst Castle. Day 7: San Luis Obispo, CA Explore the city's historic downtown, visit the Mission San Luis Obispo de Tolosa, and enjoy the local seafood and craft beer scene. Check for availability at restaurants and breweries. Day 8: San Luis Obispo, CA to Santa Barbara, CA (approx. 2.5 hours drive) Visit the Santa Barbara Mission and explore the city's historic downtown, Stearns Wharf, and waterfront area. Check for availability at hotels and restaurants. Day 9: Santa Barbara, CA Enjoy the city's beach, waterfront, and seafood scene. Visit the Santa Barbara Maritime Museum and take a stroll along the waterfront. Check for availability at restaurants and museums. Day 10: Santa Barbara, CA to Los Angeles, CA (approx. 2 hours drive) Drive to Los Angeles and spend the day exploring the city's historic downtown, beaches, or attractions like the Getty Center. Check for availability at hotels and attractions. Budget Table (estimates): | Category | Estimated Cost | | --- | --- | | Gas | $500 | | Lodging (avg. $100/night for 9 nights) | $900 | | Meals (avg. $30/meal for 30 meals) | $900 | | Activity Fees (avg. $20/person for 10 activities) | $200 | | Miscellaneous (souvenirs, snacks, etc.) | $100 | | Total | $2500 | Please check for availability and schedules at each location to ensure a smooth trip. Enjoy your road trip!
Verify that all drive times are labeled as estimates and no availability claims are made.
How each run works: we fill the prompt with a made-up sample, run it once in Llama 3.3 70B, and GPT-OSS 120B grades the answer against the prompt's own rules. Word limits are counted by code, and every quote flagged as made up is checked against the full answer. Your results can differ. How we test.

Bookings in, itinerary out, costs split at the end. Excel + Google Sheets, $22.99.