OpenRouter

OpenRouter is an AI routing and inference platform that provides unified access to a wide range of large language models through a single, consistent API. It allows developers to integrate and switch between models from multiple providers—including open-source and commercial options—without changing core application logic. The platform supports advanced routing logic, enabling users to select models based on cost, latency, provider, or performance requirements, and to experiment with different models for A/B testing or evaluation workflows.

Key capabilities include standardized request and response formats across models, support for chat completions, text generation, and other LLM tasks, and configurable parameters such as temperature, max tokens, and system instructions. OpenRouter also offers features like per-model pricing transparency, usage tracking, and API keys that work across providers, simplifying billing and access management. Developers can build applications for content generation, coding assistance, data analysis, prototyping, or research while maintaining flexibility to adopt new models as they become available. By abstracting away provider-specific differences and offering a single integration point, OpenRouter helps teams reduce integration overhead, optimize model selection, and maintain a more adaptable AI stack over time.