Win more revenue.
Help sellers master product knowledge, messaging, discovery, objection handling, and negotiation.
New product launch
Discovery call
Objection handling
Enterprise negotiation
The AI Platform
for People Development.
With Sleak your teams learn and train in conversation with AI — personalized and scalable, built on your own company's content.
Request DemoBrands & Social proof
Trusted by teams developing
business-critical skills.
Sleak turns your company knowledge into adaptive learning and voice-based practice, so every person can build the skills their role requires.
The amount of time we save is incredible. We no longer need our best team leads to run every practice conversation — and that is a gigantic advantage.
What surprised me was how quickly Sleak picked up our terminology. After only a few short briefings, it felt like speaking with someone from our own company.
Sleak turns a sales approach from something people are told about into something they can actually experience. The feedback is direct and usable in the very next conversation.
Who would have thought AI could create an impact this quickly and leave me grinning this widely? You can see that the combination of technology and team spirit is paying off.
Marcel BraunHead of Digital Sales
Use Cases
Built for the teams where knowledge and communication decide outcomes.
Sleak helps teams develop the knowledge, judgment, and conversation skills that directly affect revenue, margins, and people performance.
Build stronger teams
Give leaders a safe space to practice the moments that shape trust, accountability, and team performance.
- Feedback conversations
Performance reviews
Difficult conversations
Team alignment
Secure better terms
Help procurement teams sharpen negotiation discipline, supplier communication, and commercial judgement before the stakes are real.
Supplier negotiations
Contract renewals
Price increase pushback
Stakeholder alignment
Retain every customer
Help service teams handle complex customer moments with empathy, clarity, and confidence – from onboarding to escalation.
Customer onboarding
Escalation handling
Renewal conversations- Complaint resolution
How it works
Understand. Practice. Improve.
Sleak helps every person build real capability through a continuous loop
of learning, realistic practice, and feedback.
Understand
Learn the knowledge behind the work through dialogue grounded in your company’s materials.
Product details
Practice
Rehearse real conversations through voice-based simulations that reflect the situations your team actually faces.
Improve
Get structured feedback, work on specific gaps, and build confidence with every repetition.
+18%
Trust and adoption
Built for people. Ready for enterprise.
Sleak helps people practice and improve privately, while giving organizations the structure, security, and visibility to develop teams at scale.
Adaptive to each person
Sleak adapts to each person’s role, level, goals,
and development gaps.
Multilingual
Support global teams across
25+ languages an regional dialects.
Private by default
Individual practice stays protected. Leaders see team-level progress, readiness, and trends.
Enterprise-ready security
Designed for enterprise security,
privacy, and compliance requirements.
(ISO27001, GDPR, AI Act)
Personal training ground
People can practice, make mistakes, and improve
without pressure, enabling real growth.
Company-specific
Ground development in your own materials,
terminology, products, playbooks, and standards.
Unique Insights
Privacy agnostic analytics across the entire organization. Build to make better, data-driven decisions and steer developement initiatives.
Case studies
How teams develop with Sleak.
See how organizations use Sleak to scale practice, reduce manager workload, and build skills in the context of their business.
How Energieversum broke its onboarding ceiling.
Energieversum already invested more in practical sales training than most companies. But its high-touch model was still constrained by the availability of its best sales leaders. Sleak removed that constraint — without compromising coaching quality.
~35practice conversations per rep
5+ hrsteam-lead time saved per rep
~2×faster onboarding
How Schwäbisch Hall scaled new sales approaches across its field organization.
Schwäbisch Hall had identified six proven sales approaches and wanted to embed them across its field sales organization. Sleak gave representatives a practical way to build confidence in those methods before using them with customers.
+11.1 pppractical conversation skills
Halvedgap between knowing and doing
1,800+practice conversations completed
SUXXEED
How SUXXEED built one sales talent system, from hiring to career growth.
SUXXEED uses the same realistic conversation practice to identify sales talent, prepare new hires, develop experienced employees, and make readiness for the next career step visible.
+14.5%overall conversation quality
+42.4%objection-handling performance
500+company-specific AI buyer personas
How FEGA & Schmitt made realistic sales practice available anywhere.
FEGA & Schmitt needed to develop sales skills across a workforce spread over dozens of locations. Sleak made company-specific conversation practice available on demand, without requiring employees to travel or wait for the next classroom session.
900+employees training with Sleak
100+teams reached
4.83/5average training rating
How Würth scaled on-demand practice to more than 5,000 employees.
Sales excellence has always been central to Würth’s success. With Sleak the company made practical conversation training available at the scale of the organisation — first for its field sales teams, and now beyond them.
5,000+employees with access
4.76/5average training rating
80participants in the pilot