Confidence
How decisively you frame choices and outcomes.
Open source · Adaptive · Evidence-backed
The interviewthat listens back.
Speak naturally. Get challenged. Watch the interview change difficulty as you answer—and leave with a report a serious recruiter could use.
Live interview07:42
“Why choose an event stream here instead of a simpler queue?”
Difficulty changedAdvanced ↑
Coach interruption“Pause there. What failed first under load?”
Not a question playlist.
Not a keyword counter.
Not a black-box score.
A better signal
Every Score Needs Receipts.
We separate what the model can observe from what it cannot. Text-only sessions never fabricate pronunciation scores. Every assessment links back to a moment in the interview.
Communication
Structure, clarity, relevance, and concision.
Technical depth
Reasoning, constraints, trade-offs, and evidence.
Pronunciation
Acoustic clarity when a speech provider is enabled.
Practice room / BYOK alpha
Start Before You Feel Ready.
The demo evaluator runs without an API key. Bring an OpenAI key for model-backed assessment; it is held in this browser tab and sent only for the request.
Optional account
Keep your practice history.
Guest practice works immediately. Register with a recovery code to return on another device—no email address or password required.
Checking this workspace…
01 / Brief the interviewer
What Are You Preparing For?
Tune the interview to the actual role. The coach will vary follow-ups and difficulty based on your answers.
BYOK privacyKeys are tab-scoped by default and never written to browser storage or logs. A self-hoster can optionally enable encrypted server storage.