By Initial Audio
Your personal AI co-producer.Runs on your CPU. Or GPU.
Play live into the piano roll, or drop any MIDI idea. Hit Re-Imagine. Get endless professional variations in seconds - no subscriptions, no waiting.
One click to unlimited new melodies.
No music theory degree required.
1. Open & Click
Difro ships with 10 prompt models built from 140+ MIDI files. Open the app, click a model, and it starts generating. More models will be released along the way.
2. Play live — or drop MIDI
Hit the red record button and play into the piano roll. No MIDI file needed. Or drag one in. The AI understands what you played and builds pro variations.
3. Drag into your DAW
The new melody appears bar-by-bar in real-time. Audition it, then drag MIDI — or a rendered WAV loop — straight into Ableton, FL Studio, Logic, or Cubase.
Not a randomizer. A real musician.
Difro actually understands melody, rhythm, and chord progressions. It keeps the DNA of your original idea while creating something entirely fresh.
ReImagine Any MIDI
No MIDI file required — hit record and play live into the piano roll. Or drag in chords or an old melody. Then use the Creativity Slider to decide how far Difro should take it.
Host Your Favorite Plugins
Load Serum, Kontakt, or Omnisphere directly inside Difro. Audition your new AI melodies with your exact presets before dragging them into your DAW.
CPU or GPU. Your choice.
No expensive graphics card required — Difro runs lightning-fast on a standard CPU, fully offline. Have an NVIDIA GPU on Windows or Apple silicon on Mac? Switch to GPU from the top-right corner. No compatible GPU? It stays in CPU mode.
SourceLab LightBuilt Right In.
Every copy of Difro comes with a built-in Light Version of our flagship synth, SourceLab. You don't need to load external plugins to hear your creations.
- Includes 80+ high-quality SourceLab presets.
- Audition MIDI files instantly with premium sounds.
- Seamless integration inside the Difro standalone app.
Host Your FavoritePlugins.
Load Serum, Kontakt, or Omnisphere directly inside Difro. Audition your new AI melodies with your exact presets before dragging them into your DAW.
- VST3 plugin hosting on Windows
- Audio Unit (AU) hosting on macOS
- Preview with your own presets before you export
Bounce a loop.Drag it anywhere.
Hit Render to WAV and Difro bounces the generated melody to an audio loop. Drag the WAV to your desktop, a custom folder, or straight into your DAW as a sample. Prefer MIDI? Click the output MIDI clip right below the Render to WAV button and drag that out instead.
- Render the output MIDI to a WAV loop in one click.
- Drag the WAV to your desktop, a folder, or into your DAW as a sample.
- Drag MIDI out from the clip directly below the Render to WAV button.
An AI that adaptsto you.
Difro isn't a static model. Rate a generation with a happy or sad face and it creates a User Model — your personal copy of the AI, nudged toward the music you actually like. Even better: edit the MIDI in the piano roll first, then rate it positive — the model learns how you expect the output to look. The more you rate, the more it sounds like you.
- Rate any output with the happy or sad face to teach Difro what you like — and what you don't.
- Edit the generated MIDI in the piano roll, then rate it with the happy face so the model learns your version as the target.
- Rating creates a User Model, a personal copy of the original that learns your preferences.
- Generate MIDI with the original factory model or your User Model.
- Went too far? Open the menu (top left) and choose Delete User Feedback Model.
Create CustomModels.
Difro comes with 10 prompt models based on 140+ MIDI files, and more will be released along the way. Want your own? Drop your MIDI files into a folder — as many as you like, there's no limit — and Difro uses them as input prompts to generate variations matching your exact style.
- Assign specific built-in SourceLab presets to your custom models.
- 100% private - everything runs locally on your machine.
- Share your custom model folders with the community.
Make It Yours. Multiple Skins Included.
The LLM ofMIDI.
Powered by a bleeding-edge combination of Variational Autoencoders (VAEs) and Transformer technology. True next-gen AI built directly into your local workflow.
Extracting the DNA
When you feed a MIDI clip into Difro, the VAE absorbs the soul of your idea, encoding it into a rich latent space - a multidimensional map of rhythm, contour, and harmonic movement.
Transformer Architecture
Just like an LLM predicts the next word, Difro predicts the perfect next note. It tracks long-range musical relationships, stringing together rhythms with human coherence.
Real-Time, Local Processing
Hyper-optimized to run locally on your CPU, with optional GPU acceleration. No cloud servers, no waiting. The neural network predicts notes so fast you hear the fresh melody stream directly.
CPU or GPU. Difro supports all NVIDIA GPUs on Windows and Apple silicon GPU on Mac. If a compatible GPU is available, switch between CPU and GPU in the top-right corner. No GPU? It runs in CPU mode — no extra hardware required.
No Subscriptions. Just Inspiration.
Download the app, host your plugins, and drag MIDI or a rendered WAV loop straight to your DAW.
Difro Free
Perfect to test the waters. Resets monthly.
- 50 Generations per month
- 10 prompt models (140+ MIDIs)
- ReImagine & Transform Modes
- VST3 / AU Plugin Hosting
- Unlimited Generations
- Create Custom Models
Difro Pro
One-time payment. Yours forever.
- Unlimited Generations
- Create Custom Models
- 10 prompt models (140+ MIDIs)
- ReImagine & Transform Modes
- 100% Royalty Free
- Lifetime Updates
The first true MIDI GPT.
Runs locally on your CPU or GPU. No cloud. No API bills. Ever.
The hard truth about "AI" music tools.Difro is the real thing.
A lot of so-called AI melody tools are not AI at all — the label sells, but under the hood it's mostly algorithms. Random note generators, rigid rule systems, or cheap cloud APIs with terrible output, strict limits, and fees that never stop. Difro is built differently: a real VAE + Transformer stack, running locally on your CPU or GPU, with no internet required and no ongoing costs.
What many tools actually are
- "AI" branding on top of basic randomization
- Requires a constant internet connection
- API usage fees and hard generation caps
- Output that ignores your chords and groove
- Your MIDI sent to third-party servers
What Difro actually runs
- Variational Autoencoder + Transformer neural net
- 100% offline — CPU, with GPU when available
- One-time purchase, zero API bills
- Understands melody, rhythm & harmony
- Private — nothing leaves your machine
1. Extracting the DNA
When you feed MIDI into Difro, the VAE doesn't just read note data. It encodes the musical soul of your idea — rhythm, contour, and harmonic movement — into a rich latent space.
2. Transformer architecture
Just like ChatGPT predicts the next word, Difro's Transformer predicts the next note. It tracks long-range musical relationships and strings together phrases with human coherence.
3. Real-time, local inference
The entire model runs on your machine — CPU by default, GPU if you have NVIDIA on Windows or Apple silicon on Mac. No cloud queue, no upload step. You hear fresh melodies stream in real time, bar by bar.
To our knowledge, Difro is the world's first real MIDI GPT — a locally running generative AI that produces outstanding musical output without an internet connection or recurring costs. Think of it as a language model, but for MIDI.
