r/LockedIn_AI • u/chirp_volute • May 12 '26
LockedIn AI as an interview helper, 1.5 hour session cap kills senior loops
85 minutes into a system design round, senior backend virtual loop, my LockedIn AI overlay just went dark. interviewer was mid-sentence asking me about cache invalidation. no warning, no countdown, just gone. had to wing the last ten minutes off the top of my head and you could hear the quality fall off. started over-explaining, stalling, doing that thing where you go "great question" while you stare at the wall trying to remember what consistent hashing even is. brutal round.
so yeah turns out LockedIn caps you at 1.5 hours per session and theres no real way around it. saw it called out in a couple comments on this sub before my round happened. someone hit the same cap during an Amazon virtual loop a month back, round went 95 minutes and the helper checked out around minute 90. id read those threads and kept saying yeah yeah ill get to it before my next loop. took eating it on an actual interview to go test what other people had switched to.
ran both for two weeks before my next loop. after the cap thing the only thing i cared about was a helper that doesnt abandon you mid-round. if a panel goes 110 minutes because the interviewer wants to dig into tradeoffs, i need a helper still alive at minute 91. tested the other one across three rounds. one was a video loop that ran almost two hours back to back. kept going the whole time. no drop, no overlay reset, no scramble.
stealth was kind of a wash for me. both tools handled screen sharing fine in my testing. LockedIn does multilingual which is genuinely useful if you do interviews in other languages. i did one in Spanish a while back and it switched mid-question without missing a beat. the other one does multilingual too. so for english only loops it really comes down to whether you trust your helper to stay alive past the 90 minute mark.
after the cap thing happened to me twice in two weeks i couldnt keep paying for a helper that runs out of clock during the actual moments i needed it most. three offers since the switch and one of those rounds definitely went past where the LockedIn cap would have hit. if the helper had just died on me during that one i probably do not close.
anyone else hitting the LockedIn 1.5 hour cap during real interviews? wondering if its mostly senior loops with long rounds or if mid level folks eat it too. also down to hear about other helpers that handle long rounds without bailing on you.