OpenRouter
OpenRouter is a unified API gateway that provides access to hundreds of AI models from different providers through a single API endpoint. Instead of managing separate accounts with OpenAI, Anthropic, Google, and others, you use one OpenRouter API key to access all of them.
How It Works
OpenRouter acts as a broker between you and AI model providers. When you send a request, OpenRouter routes it to the appropriate provider, handles authentication, and returns the response. It supports 300+ models from 50+ providers, with transparent pricing that passes through the provider cost plus a small margin. OpenRouter also handles failover: if one provider is down, it can route to an alternative.
OpenRouter in Chapeta
Chapeta uses OpenRouter as its primary model gateway. This is how Chapeta offers 300+ models from a single app. You bring your own OpenRouter API key, and Chapeta routes your conversations through it. This means you pay provider prices directly, with no Chapeta markup on model usage.
Related
More Terms
BYOK (Bring Your Own Key)
BYOK stands for Bring Your Own Key.
LLM (Large Language Model)
A Large Language Model (LLM) is an AI system trained on massive text datasets that can understand and generate human language.
AI Agent
An AI agent is an AI system that can take actions in the real world, not just generate text.
API Key
An API key is a unique string of characters that authenticates your identity when making requests to a web API.
Context Window
A context window is the maximum amount of text (measured in tokens) that an AI model can process in a single request.
Prompt Engineering
Prompt engineering is the practice of crafting input text (prompts) to get the best possible output from AI models.
Token
A token is the basic unit of text that AI models process.
Fine-Tuning
Fine-tuning is the process of further training a pre-trained AI model on a specific dataset to specialize it for a particular task or domain.