A simulator for the moments that define you. Practice interviews, negotiations, and hard feedback with AI that plays the humans you'll face, before it's real.
Walk me through a time you had to push back on a senior stakeholder. What happened?
Last quarter my VP wanted us to ship a feature I was convinced would hurt retention. I had two days…
Tighten the situation. Name the stakes in one sentence before you dive into the timeline, interviewers anchor on impact.
Coaches cost $200+ per session. Books don't build muscle memory. AI chat answers questions but doesn't simulate pressure. Hopper does.
Interviews, raise conversations, PIPs, first 1:1s as a new manager, the conversations where one wrong answer costs you the job, the role, or the team.
AI characters have persistent personalities, agendas, and memory across the conversation. They push back. They remember what you said five minutes ago.
Every session scores you on content, structure, delivery, and role-specific skills, with quoted coaching. Watch your growth across sessions.
We're starting where the stakes are highest and the feedback loop is broken: the job interview. Every other high-stakes moment is in the lab.
Multi-round, branching, tuned to the exact role and company you're targeting. Paste a JD and interview with an AI hiring manager who adapts to your answers in real time. Voice in, voice out, scored end to end.
Deliver tough feedback to a direct report who has explanations, emotions, and pushback.
Counter a lowball. Handle a multi-offer. Push for equity. The recruiter has a target and a ceiling.
The room has an agenda of its own. You're expected to add value without stepping on toes.
A star performer is complaining about a peer. You've been a manager for three weeks.
Every interview ends with an evidence-backed report. Not vibes. Concrete strengths and gaps, a skills delta against the role you're targeting, an action plan, and the exact moments that mattered, pulled verbatim from your transcript.
Strong technical foundation and confident senior-level instincts; biggest opportunity is structuring complex answers to land impact upfront.
“I'd rather take the consistency hit in exchange for sub-100ms reads, because the recovery path is well-understood and the alternative locks us into a synchronous fan-out.”
Three of your strongest answers landed in the second half of the response. A two-sentence headline up front would have made the same content feel sharper to an interviewer.
Staff loops weight 'multiplied your team' heavily. Today's transcript had no story where the impact came from someone other than you.
From “I need to prepare for this” to practicing it out loud, in under two minutes.
Browse archetypes by role and industry, or paste a job description to generate a custom simulation. Both land you in the same place: ready to practice.
Voice-first. You talk to an AI stakeholder, interviewer, manager, direct report, who adapts to what you say, pushes back, and remembers what you told them.
A dedicated feedback page with per-dimension scores, quoted coaching, full transcript, and the next simulation Hopper thinks you should run.
After every session you land on a full feedback page, not a pop-up, not an email. Four dimensions, quoted coaching tied to what you actually said, and a tracker that shows you getting better over time.
Sign up and run one full simulation for free. No credit card. Subscribe any time for unlimited reps and custom scenarios.
Rehearse it. Run it a dozen times. Then walk in ready.