AI-powered voice simulations, real-time speech analytics, and adaptive training that finds your weaknesses and fixes them — before the deal walks in the room.
Fillers
1.3 /min
WPM
147
Hedge
0.42
The Loop
A measurable feedback cycle. The same one elite athletes use — applied to the conversations that decide your career.
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
Real-time speech analytics catch every 'um', every hedge phrase, every nervous gap. WPM, sentiment, strategic silence — measured per turn.
02 / Regional voices
Pick your geography and the counterpart speaks back in the accent that fits the deal. Italian for the Milano lease. Lebanese for the Dubai partnership. Mandarin for the Shenzhen JV. Available on Pro — eight regional voices, automatically matched per scenario.
03 / Real Deal Prep
Describe your real upcoming deal. We generate a counterpart tailored to their personality, leverage, and constraints — and afterwards write three response messages you can copy and send.
04 / 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.
05 / 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.
06 / Instant Replay
Every turn annotated: filler words inline, key moments badged, audio scrubbable. The first time most negotiators hear themselves accurately.
Every interaction annotated, indexed, and addressable. Replay the moment, drill the move, ship the technique.
07 / 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 interaction annotated, indexed, and addressable. Replay the moment, drill the move, ship 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. We mine the context for hidden deadlines and counterpart pressure points.
Mode 03
Paste a draft email or message. Scored, key-issued, and rewritten in 30 seconds.
For professionals at
"I closed a $2.4M contract last week using two moves I'd practised here the night before. The replay is the cheat code."
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 → $250K → $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 — longer terms, bigger volume, 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.
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 the full technique library, all training modules, and three text-mode spar sessions per week. Voice mode, unlimited sparring, and Real Deal Prep move to the paid plan. See the pricing page for full details.
Stop winging it
Your next big negotiation is closer than you think. Run it twice before the room.