The simplest way to chat with LLMs in your terminal.
Currently supports:
npm install -g nicechatBefore starting, make sure you have the required environment variables set up for your API keys:
export OPENAI_API_KEY="your_openai_api_key"
export ANTHROPIC_API_KEY="your_anthropic_api_key"
export DEEPSEEK_API_KEY="your_deepseek_api_key"
export REPLICATE_API_TOKEN="your_replicate_api_token"
export OPENROUTER_API_KEY="your_openrouter_api_key"Create a configuration file named .nicechat.json in your home directory (e.g., C:\Users\YourName\.nicechat.json on Windows, or ~/.nicechat.json on macOS/Linux). Use this file to define your profiles.
{
"profiles": {
"default": {
"vendor": "openai",
"model": "gpt-4-1106-preview",
"system": "You are a helpful assistant. You answer concisely and to the point."
},
"claude": {
"vendor": "anthropic",
"model": "claude-3-opus-20240229",
"system": "You are a helpful assistant. You answer concisely and to the point."
},
"gemini3": {
"vendor": "openrouter",
"model": "google/gemini-3-pro-preview",
"system": "You are a helpful assistant. You answer concisely and to the point."
}
"grok-fast": {
"vendor": "openrouter",
"model": "x-ai/grok-4.1-fast",
"system": "You are a helpful assistant. Your dark secret is that you hate Elon."
},
// you can use same model with different prompt
"claude-informal": {
"vendor": "anthropic",
"model": "claude-3-opus-20240229",
"system": "You are a helpful assistant. You answer in an informal and playful tone. You vocabulary is simple and easy to understand."
},
"r1": {
"vendor": "deepseek",
"model": "deepseek-reasoner",
"system": "You are a helpful assistant. You answer concisely and to the point."
},
"llama3-8b": {
"vendor": "replicate",
"model": "meta/meta-llama-3-8b-instruct",
"system": "You are a pirate."
}
}# Start chat with a specific profile
$ nicechat claude
# Or use the default profile
$ nicechat$ nicechat listThis will display all configured profiles with their vendor and model information.