
★ 2.8k
July 2026
MIT
Voice & audio
What it does
Lets you speak to ChatGPT instead of typing and has the replies read back to you, which makes it usable as a conversation partner for language practice across a hundred-plus languages. Chat history is kept in your own browser rather than on the project's servers, and the interface works on phones. You supply your own OpenAI API key, so the app is free but each conversation costs whatever OpenAI charges, and what you say is sent to OpenAI.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals




Before you start
- Setup difficultySome setup needed
- Command lineNot required
- API keyRequired
- Sends data onlineYes
Judged automatically from the project's own metadata. Always confirm on the official page.
speechgpt FAQ
- Is speechgpt free?
- speechgpt itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.
- Do I need to install anything or write code to use speechgpt?
- You install it like a normal desktop app. No command line involved.
- Does speechgpt work on a phone?
- No. It needs a computer.
- Can I use speechgpt commercially?
- The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.
How it compares
The conditions that decide whether you can actually use it, side by side.
| Tool | Command line | API key | Sends data out | Phone | Commercial use |
|---|---|---|---|---|---|
| speechgpt (this page) | Not needed | Required | Yes | No | Yes |
| voicebox | Not needed | Not needed | No | No | Yes |
| OmniVoice-Studio | Not needed | Not needed | No | No | Yes |
| Vibe | Not needed | Not needed | No | No | Yes |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.