# Moises vs Polymath

Moises records 4,486,503 monthly visits with +6.6% month-over-month growth and Freemium pricing. Polymath records 0 monthly visits with — growth and Free pricing.

| Metric | [Moises](https://openaitools.app/tool/moises) | [Polymath](https://openaitools.app/tool/polymath) |
| :--- | :--- | :--- |
| Website URL | https://moises.ai | https://github.com/samim23/polymath |
| Categories | AI Vocal Remover, AI Stems Splitter, AI Mastering, Chord AI | AI Stems Splitter, AI Midi Generator, AI Song Remixer, Open Source AI Models |
| Pricing Model | Freemium | Free |
| Monthly Visits | 4,486,503 | 0 |
| MoM Growth Rate | +6.6% | — |
| Primary Market | Brazil | Global |
| Direct Visits | 1,972,446 | 0 |
| Review Score | 4.6 | 4.4 |
| Saved Count | 33 | 4 |
| Supported Platforms | Website | Open Source |

## Moises

Moises began as one of the best-known AI vocal removers and has grown into a complete creative suite for musicians. Its core stem separation engine isolates vocals, drums, bass, guitar, piano, keys, winds and strings, supporting up to 27 stem types with high-fidelity models. You can mute or solo any part, drop the tempo, transpose the key and loop tricky passages to practice them slowly.

Beyond practice, Moises adds composition and performance tools. A chord finder detects the harmony of a track, lyric transcription writes out the words, and a built-in metronome and speed changer help you stay in time. Moises Studio lets bands, producers and co-writers arrange, record and edit the same session together in the browser in real time, with no file handoffs. Video recording tools capture performances with studio-quality audio.

Moises runs as a web app in any browser and as native apps for iPhone, iPad, Android, macOS and Windows, so you can practise on the bus or produce at your desk. It is trusted by Grammy-winning artists, music schools and millions of hobbyists alike, and the company states it never trains on your personal audio.

**Pricing & Plans:** Freemium. The free tier includes a limited number of uploads per month and a subset of features. Paid subscriptions unlock unlimited uploads, higher-quality separation models, longer tracks and advanced tools. Check the official pricing page for current tiers.

- **AI stem separation:** Split any track into up to 27 isolated stems including vocals, drums, bass, guitar, piano, keys, winds and strings.
- **Practice controls:** Slow the speed without changing pitch, transpose the key, loop sections and mute or solo your part while you play along.
- **Chord detection and lyrics:** Automatically detect the chords in a song and transcribe lyrics so you can learn songs faster.
- **Moises Studio collaboration:** Arrange, record and edit the same session with bandmates or producers in real time, right in the browser.
- **Audio mastering:** Polish your own recordings with AI-assisted mastering to get a louder, more balanced finished track.

**Strengths:** Excellent separation quality across many instrument types; Available on web, mobile and desktop so practice fits any setting; Chord finder, lyrics, tempo and key tools cover the whole practice loop; Free tier is genuinely usable for casual learners

**Limitations:** Free tier is limited by monthly uploads and feature access; High-quality models and unlimited uploads require a paid subscription; Separation artifacts can still appear on dense or low-quality mixes

[Profile (Markdown)](https://openaitools.app/tool/moises.md)

## Polymath

Polymath is built around a simple idea: any large music collection is effectively an untapped sample pack. Instead of digging through folders manually, you point the tool at your audio and let a chain of neural networks label, slice and align it. Music source separation is handled by Demucs, structure segmentation by sf_segmenter, pitch tracking and key detection by Crepe, and audio-to-MIDI by Basic Pitch, with pyrubberband and librosa covering quantization and metadata.

Once a song has been analyzed once, it lives in a local database file, so repeated searches and quantization steps are fast and do not require re-processing. You add tracks with the -a flag (single files, folders or YouTube IDs), quantize with -q against a target BPM or the track's own tempo, and search for similar material with -s. Everything is driven from the terminal or through the included Docker image.

Typical workflows split into two camps. Producers and DJs use Polymath to extract a beat from one genre, a bassline from another and horns from a third, all tempo-matched and ready to drop into a DAW — or to assemble smooth, hour-long mixes from tracks that share a feel. Machine-learning developers use it to generate large, richly labeled audio datasets for training generative music models.

**Pricing & Plans:** Polymath is free and open source under the MIT license. The repository is public on GitHub, so there is no subscription, license fee or account. Running it does require compatible software (ffmpeg and Python 3.7–3.10) and, for practical speeds, a GPU — the cost of any hardware or cloud compute is yours.

- **Library ingestion from disk or YouTube:** Feed Polymath a single track, a folder, or a list of YouTube IDs and it builds a persistent local database of analyzed songs that can be searched instantly afterwards.
- **Neural stem separation:** Demucs splits each song into beats, bass, vocals and other stems, which are then saved to a separated folder for use in your DAW.
- **Tempo quantization to a common grid:** Every track can be time-stretched and re-aligned to a shared tempo and beat grid (for example 120 BPM), so elements from different songs line up cleanly.
- **Structure, key and loudness analysis:** Polymath labels musical sections such as verse and chorus, detects key and loudness, and exposes that metadata for search and filtering.
- **Audio-to-MIDI transcription:** Pitch tracking and Basic Pitch transcription turn melodic material into MIDI files you can edit and re-arrange in any instrument track.
- **Similarity search across the library:** Given a song already in the library, Polymath finds the most similar tracks (optionally including BPM as a criterion) to support mash-ups and long-form mixes.

**Strengths:** Completely free and open source under a permissive MIT license; Chains several proven ML models (Demucs, Crepe, Basic Pitch) into one workflow; Persistent library database makes repeated search and quantization fast; Handles both local files and YouTube sources, plus batch additions

**Limitations:** Python stack is pinned to Python 3.7–3.10, so newer environments may need extra setup work; Requires ffmpeg plus a sizeable set of ML dependencies, and initial GPU support is easiest on native installs; Analysis of every new track takes time before it becomes searchable; There is no hosted web UI — everything runs through the command line or Docker

[Profile (Markdown)](https://openaitools.app/tool/polymath.md)

## Frequently Asked Questions

### How do Moises and Polymath compare in monthly traffic?

Moises has 4,486,503 monthly visits, while Polymath has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Moises has a month-over-month growth rate of +6.6%; Polymath has —.

### How does pricing compare?

Moises: Freemium. Freemium. The free tier includes a limited number of uploads per month and a subset of features. Paid subscriptions unlock unlimited uploads, higher-quality separation models, longer tracks and advanced tools. Check the official pricing page for current tiers. Polymath: Free. Polymath is free and open source under the MIT license. The repository is public on GitHub, so there is no subscription, license fee or account. Running it does require compatible software (ffmpeg and Python 3.7–3.10) and, for practical speeds, a GPU — the cost of any hardware or cloud compute is yours.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Civitai](https://openaitools.app/tool/civitai) | 6,963,136 | +12.8% | Freemium | Discover, download and generate with open-source AI models for image, video and 3D. | [.md](https://openaitools.app/tool/civitai.md) |
| 2 | [ModelScope](https://openaitools.app/tool/modelscope-community) | 3,085,423 | +5.1% | Free | Open-source model and dataset hub with one-click online demos | [.md](https://openaitools.app/tool/modelscope-community.md) |
| 3 | [LALAL.AI](https://openaitools.app/tool/lalal-ai) | 1,963,370 | -12.1% | Freemium, Paid | Offers exceptionally clean vocal and instrumental stem separation, but lacks Moises's built-in chord detection and practice tools. | [.md](https://openaitools.app/tool/lalal-ai.md) |
| 4 | [LANDR](https://openaitools.app/tool/landr) | 1,885,312 | +3.3% | Paid | Comprehensive music production ecosystem focusing on mastering and distribution, rather than interactive instrument practice. | [.md](https://openaitools.app/tool/landr.md) |
| 5 | [OpenMusic AI](https://openaitools.app/tool/openmusic-ai) | 709,073 | -7.4% | Freemium | All-in-one AI music studio for generating, editing, and mastering royalty-free tracks | [.md](https://openaitools.app/tool/openmusic-ai.md) |
| 6 | [Kits AI](https://openaitools.app/tool/kits-ai) | 691,420 | -15.3% | Freemium | Specializes in advanced AI voice cloning and singing generation, alongside robust stem separation capabilities. | [.md](https://openaitools.app/tool/kits-ai.md) |
| 7 | [Klangio](https://openaitools.app/tool/klangio) | 658,426 | -11.8% | Freemium, Free Trial | Turn audio, recordings, and YouTube into sheet music, MIDI, and tabs | [.md](https://openaitools.app/tool/klangio.md) |
| 8 | [Fadr](https://openaitools.app/tool/fadr) | 630,964 | -9.3% | Freemium | Great for automated remixing and key detection, but has fewer dedicated practice tools than Moises. | [.md](https://openaitools.app/tool/fadr.md) |
| 9 | [eMastered](https://openaitools.app/tool/emastered) | 557,785 | +1.6% | Freemium | Streamlined automated audio mastering studio, but does not provide stem separation or practice tools. | [.md](https://openaitools.app/tool/emastered.md) |
| 10 | [Clumi AI](https://openaitools.app/tool/clumi-ai) | 322,714 | -12.3% | Freemium | Browser-based AI vocal remover, stem splitter and audio cleaner | [.md](https://openaitools.app/tool/clumi-ai.md) |

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Source: https://openaitools.app/compare/moises-vs-polymath

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