Decode the
Hidden Structure
The first cognitive analysis engine powered by long-context LLMs.
Optimize your Emotional Arcs, Narrative Tension, and Cognitive Load with scientific precision.
Trusted by Visionaries
Grounded in Validated
Cognitive Science
We don't guess. We apply peer-reviewed frameworks to your text.
Cognitive Load Theory (CLT)
The theoretical cornerstone of our complexity scoring.
Rhetorical Structure Theory
The core basis for tracking teleological progression.
Uniform Information Density
The algorithmic source for smoothing information spikes.
Deep Structure Visualization
See what was previously invisible. We turn subtext into actionable data.
Tonal Dynamics
Real-time VAD (Valence, Arousal, Dominance) mapping.
Teleological Drive
Visualize narrative progression towards the conclusion.
Cognitive Load
Surprisal & syntactic depth.
Pace & Rhythm
Syllabic stress visualization.
Authorial Stance
Immersive vs. Reported distance.
What Creators Are Saying
"UseSubtext helped me fix the pacing in my second act. That 'Fate Curve' is a stroke of genius."
"By optimizing the 'cognitive load' of our documentation, we reduced support tickets by 30%."
"For modern journalism, the 'Objectivity Scanner' is an essential tool for ensuring neutral reporting."
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Choose the deep analysis plan that fits your workflow.
Monthly Plan
Flexible subscription, cancel anytime.
- Standard Deep Analysis
- 5 Projects / Month
Annual Membership
Special Offer · Only $0.24/day
- Unlimited Deep Analysis
- Export PDF Deep Reports
- Access Deep Structure API
- Priority Support
Quarterly Plan
Balanced choice, save 10%.
- All Premium Features
- Export PDF Reports