# DrumBot AI

> AI drum machine and beat maker for music producers, songwriters, and drummers.

Also known as: Drum Bot, DrumBot, Drum Bot AI, AI Drum Machine, AI Beat Maker

DrumBot AI is a GPT-powered AI drum machine that creates professional drum patterns with real-time playback, AI-powered generation, and export to MIDI and WAV formats. It runs entirely in the browser — no downloads or plugins required.

## Features

- **8 Musical Styles**: Rock, Jazz, Funk, Electronic, Metal, Hip-Hop, Rap, Tribal
- **8 Drum Kits**: Rock Kit, Jazz Kit, Funk Kit, Electronic Kit, Metal Kit, Hip-Hop Kit, Rap Kit, Tribal Kit — each with 9 drum sounds (kick, snare, hi-hat, hi-hat open, tom1, tom2, crash, ride, rimshot)
- **Fast AI Pattern Generation**: Create a full groove in seconds with the low-latency generation path
- **AI Pattern Generation**: Use the original longer AI generation pass when you want deeper pattern builds
- **Audio Analysis**: Upload a WAV or M4A track and AI extracts tempo, style, and complexity to generate a matching drum pattern
- **AI Pattern Refinement**: Modify existing patterns with natural language ("add more syncopation", "simplify the kick")
- **Interactive Sequencer**: 8-row × 16-column grid (16th note resolution), 1–8 bars, 60–200 BPM, complexity 1–10
- **MIDI Export**: Compatible with EZdrummer/Superior Drummer, Steven Slate Drums (SSD4/SSD5), Addictive Drums 2, and General MIDI
- **WAV Export**: Rendered with authentic drum kit samples matching playback audio
- **10 Pattern Variations Per Style**: Each style has 10 algorithmically distinct base patterns
- **Real-Time Playback**: Pre-scheduled audio engine built on Tone.js

## Pricing

DrumBot AI uses a credit-based system. Credits are spent on actions like generating patterns, AI requests, and exports.

| Tier | Display Name | Price | Monthly Credits |
|------|-------------|-------|-----------------|
| free | Explorer | $0/month | 75 |
| starter | Creator | $14.99/month or $143.90/year | 150 |
| pro | Pro | $29.99/month or $269.90/year | 375 |
| unlimited | Studio | $39.99/month | 600 |

### Credit Costs

| Action | Credits |
|--------|---------|
| Fast AI Pattern Generation | 3 |
| AI Pattern Generation | 5 |
| Audio Analysis | 10 |
| Pattern Refinement | 5 |
| MIDI Export | 2 |
| WAV Export | 2 |
| Pattern Save | 1 |

## Technical Details

- **Stack**: React + TypeScript frontend, Express.js backend, PostgreSQL database
- **Audio Engine**: Tone.js with pre-scheduled playback for glitch-free audio
- **AI Models**: Google Gemini 2.5 Flash (generation + audio analysis), OpenAI GPT-4o (refinement)
- **MIDI Standard**: 128 PPQ, 16th note resolution (32 ticks per step)
- **VST Presets**: General MIDI, EZdrummer/Superior Drummer, Steven Slate Drums, Addictive Drums 2
- **Authentication**: Supabase Auth (magic link)
- **Payments**: Stripe with tax calculation

## Pages

- [Home](https://drumbotai.com/) — Main app with sequencer, generation, and playback
- [Select Plan](https://drumbotai.com/select-plan) — Pricing and plan comparison
- [Manage Plan](https://drumbotai.com/manage-plan) — Subscription management (requires login)