Ptero is a free, no-signup multi-model AI chat platform for developers and students who want to compare language models in one browser tab without creating accounts. Built by aminkheddache and released as open-source under Apache 2.0, it stores conversations locally in your browser and needs no installation.
Core Features
- Multi-model chat: switch in one click between models such as DeepSeek V4, Llama 3.3, Qwen, MiniMax, and Mistral.
- No signup and no paywall: open the site and start prompting immediately.
- Local-first privacy: chats are saved in your browser, with cloud used only for projects and custom files.
- Media library for file attachments and a Projects section to organize work.
- Fair-use quota of 100,000 tokens per hour, resetting every hour to keep the service stable.
Use Cases
- Developers debugging HTML, CSS, JavaScript, or API integrations.
- Students comparing model answers while learning to code.
- Anyone quickly testing prompts across several models.
- Creators brainstorming ideas without juggling multiple tabs.
Pricing
Ptero is completely free to use and open-source, with no subscription and no account required. The only limit is the hourly token quota. Because it is Apache 2.0, you can also self-host the code from the public GitHub repository.
Our Take
Best for developers who want friction-free model comparison and privacy. Trade-off: the 100k-token hourly cap and web-only interface mean it is not a replacement for a paid coding assistant on heavy workloads. See other AI chat tools.
