120 AI Chat is a native macOS and Windows app built for fast, smooth conversations with AI. Its high-FPS interface keeps long sessions responsive, without the lag you often get in web-based chat tools.
Multiple AI models in one app
Use different models in a single workspace—from GPT-5 and Claude 4.5 to local LLMs. Connect your own API keys and switch between models in a couple of clicks. It’s designed to make it easy to compare outputs and choose the best model for the task.
- Side-by-side response comparison
- Quick switching between providers and local models
- Suitable for coding, writing, data analysis, and creative tasks
Bring your own keys and control costs
Instead of a subscription, 120 AI Chat uses a “bring your own key” approach. You pay model providers directly rather than through an intermediary, which can make spending easier to track and gives you flexibility in choosing plans with OpenAI, Anthropic, and others.
Built for daily, high-volume use
It’s aimed at people who work with AI every day, including developers, analysts, and writers, especially when running multiple models in parallel.
