AI behavioral interview assistant for STAR answers
"Tell me about a time you led a project" is easy to answer badly: a generic story, no outcome, no numbers. LastRound AI builds the answer around the stories you give it, in STAR shape if you want it, with the real figures you entered.
You write two or three sentences per story once. On the day, the right story is pulled into the answer the moment the question is asked.
Summarized question: Tell me about a time you led a project.
Situation: our scheduled jobs all ran from cron on one EC2 machine, so one bad deploy could silently skip payouts.
Action: I proposed moving them onto a queue with retries, wrote the plan and split the work across three of us.
Result: we cut over on a weekend with the old jobs as a fallback, and didn't miss a single job after the switch.
61interview languages
~1 sto the first words of an answer
Hiddenon screen share and recordings
1 creditper minute, free plan included
How it works
Four steps, all on the keyboard
- 1
Write your stories once
Interview Setup has fields for leadership, a challenging situation, teamwork and your problem-solving approach. Two or three sentences each, with the outcome, is enough.
- 2
Turn on STAR and metrics
The STAR switch shapes answers as situation, task, action and result. Include metrics draws only on numbers you have entered.
- 3
Start a Live interview session
The interviewer's question is transcribed as they speak, and the copilot summarises what it heard before answering.
- 4
Read it in your own voice
Answers are in the first person, in the tone you chose: Formal, Professional or Conversational.
What you get
Built for this round
Your stories, not generic ones
Leadership, challenge and teamwork stories are sent with every answer, so the example is yours.
STAR on demand
Switch STAR on for structured panels and off for conversational culture-fit rounds.
Real numbers only
Metrics come from the figures you entered, such as "cut checkout p95 from 800 ms to 250 ms", never invented ones.
Tone that fits the room
Professional is what most panels expect. Conversational reads more naturally at startups.
61 interview languages
Questions are transcribed and answered in the language of your interview.
Practise first
Run an AI mock interview with behavioral questions and get a scored report on your answers.
Watch the full walkthrough
The desktop app from setup to a streamed answer.
Before the interview
Add the outcome to every story
"No missed jobs after the switch" is what makes a story land. Stories without results produce answers without results.
Paste the job description
Answers lean towards what the role asks for, such as ownership or stakeholder management.
Test the audio
Interview Setup → Audio check confirms the app can hear the meeting before the call.
Where to be careful
- Only tell stories that happened. Interviewers probe behavioral answers with follow-ups, and the copilot can only draw on what you wrote.
- Keep the call on your normal speakers or headset. A muted meeting leaves nothing to transcribe.
AI Behavioral Interview Assistant: FAQ
Does the AI make up stories for behavioral questions?
It builds answers around the stories you enter in Interview Setup. With no stories it gives a general answer, which is why writing two or three real ones first matters.
Can it answer in the STAR format?
Yes. Turn on the STAR switch in Interview Setup and answers follow situation, task, action and result.
Will the numbers in my answers be real?
The Include metrics switch only uses figures you have typed in yourself. If you have not entered any, it will not invent them.
How much does it cost?
Sessions bill 1 credit per minute, rounded up, from Start to End. Every account gets 15 free credits a month, so you can try it on a practice round before paying. Paid plans add more credits each month.
Other interview types
- Coding interviewsSolutions, hints and edge cases from a screenshot of the problem
- System design interviewsStructured answers to design questions, grounded in your experience
- Phone screen interviewsHelp on recruiter screens, on your laptop or your phone
- Online assessmentsMultiple choice, code output and puzzles from a screenshot
- HireVue and one-way videoPrompts read from audio or screen during recorded interviews
Learn more
Try it on a practice round first
Download the app, run a practice session with your free credits, and see the answers for yourself before the real one.