Source: https://seerepo.com/compare/calesthio/OpenMontage/vs/w-okada/voice-changer
Markdown source: https://seerepo.com/compare/calesthio/OpenMontage/vs/w-okada/voice-changer.md
Description: OpenMontage and voice-changer share 5 technologies: FastAPI, uvicorn, React, torchaudio, and torch. Both are written in Python.

# OpenMontage vs voice-changer

OpenMontage and voice-changer share 5 technologies: FastAPI, uvicorn, React, torchaudio, and torch. Both are written in Python.

- [calesthio/OpenMontage](https://seerepo.com/r/calesthio/OpenMontage): World's first open-source, agentic video production system. 12 production pipelines, 100+ tools, 700+ agent skill and production-knowledge files. Turn your AI coding assistant into a full video production studio.
- [w-okada/voice-changer](https://seerepo.com/r/w-okada/voice-changer): リアルタイムボイスチェンジャー Realtime Voice Changer

## What they share and what sets them apart

- In common: FastAPI, uvicorn, React, torchaudio, torch
- Only in OpenMontage: Google, OpenAI, torchvision, pillow, jsonschema, Pydantic, remotion
- Only in voice-changer: localforage, matplotlib, onnxruntime-gpu, librosa, einops, react-error-boundary, wavesurfer.js, Font Awesome

## Side by side

| | OpenMontage | voice-changer |
|---|---|---|
| Size | 174,045 lines written, 73 code files | 48,369 lines written, 342 code files |
| Who writes it | 21% of its commits signed by AI. With Claude Code and Codex | 0% of its commits signed by AI |
| Activity | Last push November 3, 2026, 352 commits, 76,502 stars | Last push September 26, 2026, 1,516 commits, 21,295 stars |
| Tests | 156 test files. 26% of its code files have a test that imports them | 2 test files. 0.3% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, OpenMontage or voice-changer?

OpenMontage, with 174,045 lines written; voice-changer has 48,369.

The proof: [calesthio/OpenMontage's code at commit d21f5d4](https://github.com/calesthio/OpenMontage/tree/d21f5d4eaa08422b09c7091757a05affcbabb35b)

### Which has more GitHub stars, OpenMontage or voice-changer?

OpenMontage, with 76,502 stars; voice-changer has 21,295.

The proof: [calesthio/OpenMontage on GitHub](https://github.com/calesthio/OpenMontage)

### Which has more tests, OpenMontage or voice-changer?

OpenMontage, with 156 test files; voice-changer has 2.

The proof: [calesthio/OpenMontage's code at commit d21f5d4](https://github.com/calesthio/OpenMontage/tree/d21f5d4eaa08422b09c7091757a05affcbabb35b)

### Which was updated more recently, OpenMontage or voice-changer?

OpenMontage: its last push was on November 3, 2026, and voice-changer's on September 26, 2026.

The proof: [calesthio/OpenMontage's commits on GitHub](https://github.com/calesthio/OpenMontage/commits)

### Which has more commits signed by AI, OpenMontage or voice-changer?

OpenMontage: an AI signed 21% of its commits, with Claude Code and Codex.

The proof: [the commits each tool signed in calesthio/OpenMontage](https://seerepo.com/r/calesthio/OpenMontage/ai)

## Sources

- calesthio/OpenMontage: Read on November 4, 2026, at commit d21f5d4 (https://github.com/calesthio/OpenMontage/tree/d21f5d4eaa08422b09c7091757a05affcbabb35b)
- w-okada/voice-changer: Read on November 5, 2026, at commit d8ef157 (https://github.com/w-okada/voice-changer/tree/d8ef15799470193f7c8176ef471245753a656626)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.