Inspiration
Everyone — from entrepreneurs to students — will one day need to deliver a pitch. But not everyone has access to a professional coach to rehearse, get feedback, or boost their impact.
🎤 So... what if an AI could coach you, in your own language, with real-time feedback?
That’s how PitchMaster was born.
What it does
PitchMaster is a bilingual AI coach (French/English) that analyzes your pitch (video, audio, or document) and gives you custom, constructive feedback:
📄 Structure, tone, clarity, pacing, and delivery analysis
🎧 Feedback delivered as natural voice (via ElevenLabs)
🎥 Optional AI-generated video response using Tavus
📊 Auto transcription available for video uploads
How we built it
⚡️ Frontend built entirely on Bolt.new for a mobile-first, clean UX
🧩 Backend in Python/Flask handles AI prompts, APIs, and media generation
🧠 Used GPT-4 to generate clear, motivational pitch feedback
🔊 Integrated ElevenLabs for human-like voice generation
🎥 Integrated Tavus for personalized AI video coaching
☁️ Custom routes to store, retrieve, and render results dynamically
Challenges we ran into
Google Colab network limitations when connecting to Tavus’ API
Generating and validating the first Tavus avatar (Persona + Template setup)
Auto-detecting pitch language to support both English and French
Balancing constructive and encouraging tone in feedback prompts
Accomplishments that we're proud of
✅ Fully functional AI feedback loop: From pitch input (text, video, or doc) to customized analysis, audio, and AI-generated video — all integrated seamlessly.
🧠 Real-time bilingual feedback: Automatically detects pitch language (French or English) and delivers tailored feedback accordingly.
🗣️ Natural, human-like coaching voice using ElevenLabs, making feedback more engaging than plain text.
🎥 AI video generation with Tavus: We trained a personalized avatar to deliver feedback in video form — realistic, scalable, and professional.
⚡ Built the full frontend in Bolt.new, achieving a responsive, mobile-ready design without writing traditional CSS or HTML.
🔗 Connected multiple advanced APIs (GPT-4, ElevenLabs, Tavus) into a unified experience — with full backend logic we coded ourselves.
🌍 Designed with accessibility in mind: anyone can pitch, no expensive coach required.
What we learned
How to chain together AI tools to build a seamless coaching pipeline
The value of personalized, real-time feedback in learning experiences
How to combine natural language, audio, and video for greater impact
That simple UX can significantly improve user engagement in self-coaching
What's next for PitchMaster – AI-Powered Oral Pitch Coach
rogress tracking
Live feedback via webcam
AI roleplay for Q&A sessions
And a mobile version to practice anytime, anywhere
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