Pulse™ · Live Conversation
Fluency under
real pressure.
Pulse is the live AI conversation mode where automatization happens. HEXI speaks in your cloned voice, creates unpredictable retrieval moments for what you've drilled, and scores every word you produce.
"Automatization only happens through spontaneous production under communicative pressure. No other condition creates it." — DeKeyser (2007)
Pulse modes
Free Conversation
HEXI responds and corrects in real time. No topic, no script — spontaneous production at your CEFR level.
Scenario Immersion
HEXI plays a role — Montréal café, Bogotá taxi, Paris interview. Dialect and register calibrated to your target.
Production Pressure
Timed responses. Trains automaticity — production without thinking. DeKeyser's automatization, applied.
Vocabulary in Context
HEXI deploys your Island words in live conversation. Nation (2001): highest retention condition.
Shadow Mode
v1.1Hear HEXI speak, shadow immediately. Azure scores phoneme accuracy and temporal rhythm alignment.
Witness Mode
v1.1HEXI dialogues with itself in your voice clone. You watch. Mental simulation activates the internal monitor.
One session. All four rings.
A single Pulse session updates every ring simultaneously — because live conversation demands pronunciation, comprehension, production, and retention all at once.
Ring 1 · Pronunciation
Azure scores your spoken output per phoneme, per turn.
Ring 2 · Comprehension
Accuracy of your responses to HEXI's questions and prompts.
Ring 3 · Production
Fluency, syntactic complexity, and vocabulary range.
Ring 4 · Retention
Island words used correctly in unpredictable live context.
Why Pulse is different
Your voice. Your coach.
The AI speaks in your cloned voice — the fluent version of you, speaking the language you're trying to become. Identity-based motivation made audible.
Dörnyei L2 Motivational Self System (2009)
Dialect-specific partner.
Québécois learners get a Québécois conversation partner. Colombian learners get a Rolo accent. The register, idioms, and phonemes are all calibrated to your actual target.
No consumer competitor offers this at scale
Compound memory.
HEXI doesn't reset between sessions. It carries your phoneme history, Island word bank, CEFR scores, and plateau patterns into every conversation.
Anderson ACT-R (1983) · Ebbinghaus (1885)
Not encouragement. Training.
Feedback is honest. Difficulty adapts upward as you improve. The goal is ring movement — not completion badges, not streaks. This is fitness, not school.
Skehan (1998) · Bygate (2001)
The acquisition chain
Island™
Drill the phrase
Pulse™
Use it live
Rings update
FP recorded
Removing either stage breaks the acquisition chain. Pulse without Island is improvisation. Island without Pulse is drilling that never transfers. Together: the only sequence that produces durable fluency.
Hear your fluent self.
Get your FP baseline and see what Pulse unlocks for your specific dialect and CEFR level.
Get Your FP Score →