AI practice partner
Practice against
anyone.
AdversaryAI is a sparring partner that never gets tired and never lets a weak answer slide. Debate a motion, rehearse a job interview, or negotiate a deal — by voice or text — and get scored like an athlete after every session.
3 sessions free. No credit card to start.
How it works
Three steps to sharper thinking
Pick your mode
Choose from eight practice modes — debate sparring, job interviews, negotiations, historical figures and more. Set the scenario and the difficulty.
Practice by voice or text
Argue out loud with natural voice conversation, or type if you prefer. Your opponent pushes back in real time — cross-examining, probing, and refusing to let sloppy thinking pass.
Get coaching scores
Every session ends with detailed scores: argument strength, evidence, rebuttal quality, and composure — plus exactly where you lost points and how to win them back next time.
Practice modes
Eight arenas. One goal: better thinking.
Whatever you're preparing for, there's a mode built for it. Each one sets the scene, plays the other side, and scores you like a coach.
Pricing
Pay for sessions, not promises
Start free. Upgrade when you're hooked. One-time session packs never expire.
One-time session packs
One-time purchase. Credits never expire. Stack them with any plan.
FAQ
Questions, answered
What is AdversaryAI?
AdversaryAI is an AI sparring partner. You pick a practice mode — debate, job interview, negotiation, and more — then argue your case by voice or by text. The AI pushes back in real time, and when the session ends you get detailed coaching scores on your argument strength, evidence, rebuttals, and composure.
How does a session work?
You choose a mode and a scenario (anything from "AI should be regulated" to a mock interview for a product role), pick your opponent style, and set the difficulty. Then you practice in timed exchanges — make your case, handle rebuttals, and deliver a closing. Afterwards you get a full scorecard showing where you won and lost points.
Do I need a microphone?
No. Voice sessions need a mic, but text sessions work with just a keyboard — same opponents, same scoring. Many people start with text and switch to voice once they're warmed up.
Is there a free trial?
Yes — your first 3 sessions are free, with full access to every practice mode and voice or text. No credit card required to start.
What does it cost after the trial?
Debater is $12/month for 30 sessions, and Coach is $29/month for 150 sessions plus coaching analytics. Prefer one-off? Session packs cost $9 for 10, $19 for 25, or $39 for 60 sessions — and pack credits never expire.
Can I cancel anytime?
Yes. Monthly plans cancel in one click and you keep access until the end of your billing period. Any unused pack credits stay on your account — they never expire.
Ready when you are
Your first opponent is waiting.
Three sessions. Free. No excuses left.
Start free trial