OpenRouter

Unified API for multiple LLM models

Unified API platform providing access to multiple large language models from different providers through a single API interface. Supports models from OpenAI (GPT-4, GPT-3.5), Anthropic (Claude), Google (Gemini), Meta (Llama), Mistral, and many others. Offers automatic fallback between models, cost optimization features, and unified response format. Enables developers to switch between models without changing code. Provides model routing, caching, and usage analytics. Suitable for developers who want flexibility to use different models or need automatic failover. Pay-per-use pricing with transparent model costs.

QUICK TIPS

1 Use model routing to automatically select best model for each request

2 Configure fallback models for reliability

3 Monitor costs across different models

4 Take advantage of unified response format

5 Use caching to reduce costs

SIMILAR TOOLS

fal.ai Firecrawl Crawl4AI Google AI Studio Hugging Face Inference API

USE CASE EXAMPLES

Multi-Provider LLM Application

Build applications that can use multiple LLM providers through a single API.

STEPS:

Set up OpenRouter API credentials
Configure model preferences
Make API calls using unified format
Handle responses consistently
Monitor usage across providers

Cost-Optimized Model Usage

Optimize costs by routing requests to the most cost-effective models.

STEPS:

Compare model pricing on OpenRouter
Configure routing rules based on task complexity
Use cheaper models for simple tasks
Reserve premium models for complex tasks
Monitor and adjust based on performance

PRICING

Freemium Free tier available

Free tier includes limited features. Paid plans unlock full access, higher usage limits, and commercial usage rights.

View pricing details →

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FREQUENTLY ASKED QUESTIONS

Is OpenRouter free?

OpenRouter offers a free tier with limited features, plus paid plans for advanced capabilities and higher usage limits.

What can I do with OpenRouter?

OpenRouter is designed for Accessing multiple LLM providers via one API, Model switching and fallback, Cost optimization across models. Unified API platform providing access to multiple large language models from different providers through a single API interface. Key strengths include Unified API for multiple LLM providers and Automatic model fallback and routing.

How do I get started with OpenRouter?

Sign up at openrouter.ai and obtain API key. Use the unified API endpoint with model names (e.g., openai/gpt-4, anthropic/claude-3-opus). Make API calls using standard OpenAI-compatible format. Configure automatic fallback for reliability. Monitor us...