Take the guesswork out of communication. Know with confidence exactly how to reach each personality type—whether they want data, relationships, or vision.
Build authentic relationships faster by understanding how each person prefers to communicate. COS helps you connect genuinely—not manipulate—by showing you the communication style that feels most natural to each prospect. Everyone deserves to be understood in the way that works best for them.
Connect authentically with every personality type in your pipeline
Instantly understand what communication style resonates with each prospect—analytical vs. relational, detail-oriented vs. big-picture, cautious vs. action-oriented. Adapt your outreach without losing authenticity.
Most reps run their first analysis in under 5 minutes. No training needed—paste your email, see which personalities respond, adjust and send.
More conversations that click. Fewer "let me think about it" responses. Higher reply rates by speaking each prospect's language—and building relationships that last.
"COS showed us our emails only resonated with analytical buyers. After fixing for relationship-builders, reply rates went from 2% to 9%."
— SDR Manager, Series B SaaS
"What I love is it helps me build real relationships faster. I actually understand how each prospect wants to be communicated with."
— Account Executive, Enterprise Software
Lead messaging strategy with quantified personality intelligence
Transform "I think this resonates" into "This version scores 40% higher with analytical buyers." A/B test messaging variants before they go live. Show leadership data they respect—not opinions they debate.
Discover each team member's natural communication strengths. Match writers to content based on personality fit—your detail-oriented writer for technical content, your relationship-builder for customer stories.
Messaging decisions that accelerate pipeline, backed by psychology the C-suite respects. Teams that collaborate better because they understand each other's communication styles.
"Your report has basically become mandatory reading for all leaders in the company. We finally have data to back our messaging decisions."
— Marketing Director, Fortune 500 Tech
"It brought our whole team together. Now we assign content strategically—each writer produces their best work because they are writing to their strengths."
— Content Director, B2B SaaS
Explore validated computational linguistics meets personality psychology
We use cosine similarity across semantic embeddings, mapped to Big Five trait expressions. Full methodology documentation available. Built on 860+ peer-reviewed studies—and we show our work. Every score is auditable and reproducible.
In plain terms: we measure how closely your language patterns match communication styles that resonate with each personality type, then show you exactly where the gaps are.
Transparent NLP methodology you can validate, extend, and trust. No black boxes. Join the researchers already using COS to study persuasion patterns and communication effectiveness. Open science, accessible to everyone.
Methodology references: Costa & McCrae (1992), Cialdini (2006), Kahneman (2011). Four frameworks: Big Five personality, HAPE engagement, Strategic Clarity, Cognitive Autonomy. Read the full methodology →
Ensure every pitch, launch, and board update lands exactly as intended
Preview how different investor personalities will receive your messaging. Adapt your narrative for analytical VCs vs. vision-driven angels vs. metrics-focused boards—all without losing your authentic voice.
Building investor relationships is personal. COS helps you speak their language from the first meeting, so you spend less time guessing and more time building genuine connections.
Communicate with precision across every stakeholder type. Land the meeting, close the round, ship the launch—while building relationships that support you through the journey.
"We ran our Series A deck through COS and found we were only connecting with visionary investors. After expanding for analytical types, three partners who had been silent suddenly engaged."
— CEO, Seed-Stage Fintech
"As a first-time founder, I was nervous about board communication. COS gave me confidence that my updates would resonate with every personality around the table."
— Founder, Health Tech Startup
Stop second-guessing your messages. See exactly which personality types connect with your writing—and how to reach the ones you are missing—in 60 seconds.
No credit card required • Your content stays private • Risk-free trial with full refund guarantee
Better communication helps everyone. We built COS to level the playing field—so thoughtful professionals can connect as effectively as natural communicators.