Spar out loud or by text with AI counterparts that actually push back. Real-time feedback on how you come across, and training built from your weak spots, so you walk into the raise, the deal, or the hard conversation already warmed up.
Fillers
1.3 /min
Pace
147 wpm
Hedge
0.42
Concession, nothing asked in return
The loop
A measurable feedback cycle, the same one elite athletes use, applied to the conversations that shape your career, your money, and your relationships.
Practice negotiations with AI counterparts that adapt to your skill level. Voice or text. Real personalities, real friction.
Get scored across 21 dimensions. See your filler words, concession patterns, missed opportunities, laid out, named, and timestamped.
Follow a personalised training path built from your weaknesses. Targeted drills, focused modules, measurable improvement.
Features
Each surface designed for a specific job. Each measurement chosen because it predicts real-world outcomes.
01 / Voice mode
Say your move out loud and your counterpart listens, catching every 'um', every hedge, every nervous gap, measured per turn. Pace, filler rate, hesitation, strategic silence. How you say it counts as much as what you say. Available on Plus.
02 / Real Deal Prep
Describe what's coming: a salary review, a client deal, a rent renewal, a tense talk at home. We build a counterpart tailored to their personality, leverage, and pressure points, then hand you three response messages you can copy and send.
03 / The Library
Voss. Cialdini. Ury & Fisher. Diamond. Camp. Each technique with examples, counters, and a one-tap drill so you can practise it before your next call.
04 / Adaptive Training
Linear regression on your scores tracks every dimension over time. Critical weaknesses surface. Modules and drills target them. The next scenario tests them.
05 / Instant Replay
Every turn annotated: filler words inline, key moments badged, audio scrubbable. The first time most negotiators hear themselves accurately.
Every turn annotated and indexed, so you can replay the moment, drill the move, and practise the technique.
06 / Message Review
Score across seven dimensions including concession exposure and frame strength. A revised version that sounds like you, ready to copy and send. 30 seconds.
Every turn annotated and indexed, so you can replay the moment, drill the move, and practise the technique.
Mode 01
A tailored counterpart, generated to your industry. 10 minutes. Good for warming up or stress-testing a tactic.
Mode 02
Your actual upcoming negotiation, at work or at home. We mine the context for hidden deadlines, leverage, and counterpart pressure points.
Mode 03
Paste a draft email or message. Scored, key-issued, and rewritten in 30 seconds.
Built on the work of
Chris VossRobert CialdiniUry & FisherStuart DiamondJim Camp
Everyone negotiates: a raise, a lease, a bedtime standoff, a seven-figure deal. Most people walk in cold and pay for it. You can walk in having already done it.
FAQ
The fundamentals of negotiation, how SparLab fits in, and what's free.
BATNA stands for Best Alternative To a Negotiated Agreement: the option you'll fall back on if this deal doesn't close. Coined by Roger Fisher and William Ury in Getting to Yes, it's the single most underused source of negotiating power. To use it: before the conversation, identify your BATNA precisely. Not “we'll figure something out,” but exactly what happens if you walk. Strengthen it where you can. Keep it private during the negotiation but draw on its confidence. The stronger your BATNA, the less you need any individual deal, and the less you'll concede to keep it alive.
Three habits change the pattern. First, make smaller and slower concessions. Drop in halves of your previous move, not equal amounts (a $500K, then $250K, then $100K pattern signals the well is running dry). Second, never concede without trading: every move on price should pull a non-price concession the other way, such as longer terms, bigger volume, or a referral. Third, anchor early and explicitly. The party that puts the first specific number on the table sets the gravitational center. The longer you wait, the more your counterpart's anchor pulls the negotiation toward their side.
Tactical empathy, popularized by former FBI hostage negotiator Chris Voss in Never Split the Difference, is the discipline of recognizing your counterpart's emotional state and naming it back to them, without judgment, agreement, or attempting to fix it. Statements like “It sounds like you're under real pressure on the budget” or “It seems like timing is the harder issue here” lower defenses and surface information that wouldn't come out under direct questioning. It's not sympathy and it's not a manipulation trick. It's a mechanism for letting the other side feel understood, which paradoxically makes them more open to your perspective.
No. If two people want different things, that's a negotiation, and you have those every day: a raise, a lease, a contractor's quote, your kid's bedtime, who's doing the dishes. SparLab is built for sales teams and for everyone else. There's more on that on the Why negotiate page.
Two ways. The Real Deal Prep mode lets you paste in your actual brief (counterparty, stakes, your position, theirs) and rehearse the conversation against an AI that argues their side credibly. Run it three or four times, and by the real meeting you've already heard their objections in voice, fumbled the responses, and recovered. The Diagnostic mode finds the dimension that's costing you the most (concession discipline, anchor strength, information control, and 18 more), then routes you to focused training that sharpens it. Combined: walk in prepared instead of hoping you'll improvise well.
Yes. Free forever, no card required to start. The free tier includes three text-mode spar sessions per day, daily micro-drills, message-draft reviews, and the technique library. Voice mode, unlimited sparring, harder difficulties, and Real Deal Prep are on the paid plans. See the pricing page for the full breakdown.
Stop winging it
Your next negotiation is closer than you think, and it might not look like one. Run it twice before it's real.