OPEN CHAT
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Open Chat v0.1 — free on Android · bring your own key ·Download →

CHAT ON YOUR
OWN TERMS

A free, private BYOK client for any OpenAI-compatible API. Your keys. Your models. Your data.

Download for Android → Star on GitHub How BYOK works
Quickstart
ANY-PROVIDERGPT-4OCLAUDE-3.5LLAMA-3OLLAMA-LOCAL

> Works with any OpenAI-compatible endpoint

OPENAIANTHROPICGROQOPENROUTERMISTRALOLLAMALM-STUDIOTOGETHER

> ./features

EVERYTHING A POWER USER WANTS.

Bring Your Own Key

Use API keys from OpenAI, Anthropic, Groq, OpenRouter, or self-hosted endpoints. No middleman, no markup.

01

OpenAI-Compatible

Works with any provider that speaks the OpenAI chat completions protocol — cloud or local.

02

Privacy First

Keys land in the Android Keystore. Conversations stay on device by default. Zero telemetry on chat content.

03

Multi-Model

Switch between GPT-4o, Claude, Llama, Mistral, or your local Ollama model mid-conversation.

04

Streaming & Markdown

Real-time token streaming with rich markdown, syntax highlighting, and copy-ready code blocks.

05

Open & Extensible

System prompts, custom endpoints, and every request parameter fully in your control.

06

> ./quickstart

PASTE A KEY.
PICK A MODEL.
SHIP.

No accounts. No sign-ups. No middleman. Open Chat talks directly to your provider — you only pay the tokens you use.

  1. 01Install Open Chat on your Android device
  2. 02Paste an API key from any provider
  3. 03Start chatting — switch models any time
open-chat · gpt-4o
Summarize the BYOK model in one line.
You supply the API key; Open Chat routes requests directly to the provider — no proxy, no markup, no logging.
Switch to Claude and try again.

> ./ship

OWN YOUR AI STACK.

Open Chat is completely free. Download for Android and bring your own key today.

Download Open Chat →Read the FAQ