Hunt last-minute holiday flights with multiple agents (failure case)
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Evidence: Described by posterThe person describes what happened in words, without screenshots or video.
FailureThe source says the agent did not get the job done.
What went wrong: The agents only matched a manual Google Flights search and were too slow as cheap fares vanished; the humans beat them by about 15%.
Outcome
Claude Opus 4.5, Gemini 3 Pro and ChatGPT agent mode only matched a manual Google Flights search and were too slow as cheap fares vanished; the humans beat them by about 15%.
Agent
ChatGPT agent, Claude Opus 4.5 (Antigravity), Gemini 3 Pro
Prompt Improved prompt
Improved prompt: strengthened by us to avoid the problem in the source. Not tested by the poster. It doesn't change what happened in the source.
Not sure how to start? Tell me what you're trying to get done and I'll help you turn it into a clear request. Goal: Find the cheapest flights for our family trip quickly, before last-minute fares disappear. Quick check first: Which airports and dates, and how many travellers? What I need from you: - Departure and arrival airports, plus nearby ones you'd accept ([AIRPORTS]) - Dates [DATES] and flexibility - Number of travellers and bags Rules: - Work fast. Give me a first shortlist within 10 minutes, then keep improving it. - Search several airports at once (Google Flights supports this) and check one-way tickets as well as round trips. - Re-check a fare just before you list it, because cheap seats are selling out quickly. - Tell me the price and when you saw it. - Don't book. As soon as you find a good fare, tell me so I can grab it myself. Output: A ranked list of options with total price, times, airports, one-way or return, the time you checked and a link. If any of this is unclear, tell me what you have and I'll help fill the gaps. You'll know it worked when: you get good options early enough to book them before they sell out.
What the poster tried (recreated by us)
The source didn't publish its exact prompt; this is our reconstruction of what was asked.
Find the cheapest flights for our family's holiday trip on these dates and airports.
Source
https://x.com/anuraagsidhu/status/2001930515260088374
By Anuraag Singh (@anuraagsidhu) · Published Dec 19, 2025 · Added Oct 15, 2026 · Last verified Oct 15, 2026
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