Experiment / AI in your browser
Orbit Playground.
Chat with a tiny AI model that runs 100% inside this browser tab. No server, no account, and nothing you type gets sent anywhere.
- no server
- no account
- works after it loads, even offline
Pick a brain
Each model downloads once, then stays cached in your browser. Wi-Fi recommended.
Heads up: Real Orbit is a ~1 GB download
- Needs decent Wi-Fi. On a slow or mobile connection it can take a long time (and eat your data).
- Best on a PC or laptop. It needs about 1.5 GB of free memory once loaded.
- On a phone it may be slow or crash the tab. The Android app runs it much better.
This browser can't run the playground
Your browser is missing a feature the model needs (WebAssembly with SIMD).
Try a recent Chrome, Edge, Firefox or Safari on a laptop or a newer phone. Or skip the browser entirely: NTS Orbit runs the real thing on your Android phone.
Hey! I'm a tiny model running right on your device. Ask me something. Heads up: I'm small, so I can get facts wrong.
This is how Orbit feels on a phone. Here it's your browser.
NTS Orbit · Android
Want it on your phone, offline?
NTS Orbit is a free AI assistant that runs a bigger, fine-tuned model right on your phone, even in airplane mode. It can also connect to your own Ollama, LM Studio or llama.cpp server. Code on GitHub.
Models: SmolLM2-360M-Instruct (Hugging Face, Apache 2.0) and Qwen2.5-0.5B-Instruct (Qwen, Apache 2.0), Q4_K_M GGUF quants by bartowski. Real Orbit: NTS Orbit (code on GitHub), public edition model from the v1.0.0 release. Runtime: wllama + llama.cpp (MIT). Small models can be wrong or weird; don't rely on them for anything important.