Five agents planned the same trip, and the fastest one left out two stops
The poster gave Manus, ChatGPT's agent, Genspark, Grok and Lindy the same job: 3 nights in Austin for 2 people, flights from Raleigh and a hotel, $1,500 in total, 3 different options with links, and stop before booking. Each got one try in a fresh session and was scored on an 8-point checklist. Manus finished first in about 90 seconds with correct totals and real links, but its outbound flight took about 11 hours with 2 stops it never mentioned. ChatGPT's agent took 12 to 16 minutes, needed one nudge and gave 3 options on the same flights. Genspark said flight sites blocked it, so its fares were estimates, and Grok and Lindy mostly linked to general searches instead of real listings.
The lesson: Ask the agent to list the number of stops and total travel time for every flight, and click through before you trust a trip plan.
Where this comes from
Original post by @MichaelGannotti on X, Oct 17, 2026. We rewrote it in our own words. The result is what the poster reports.
Read the originalCopy-paste setup
Our own prompt, written from what the source describes. We haven't run it ourselves. Text in [BRACKETS] is what you replace.
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