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MULTI-SERVICE PLATFORMS • CURATED • UPDATED FEB 5, 2026

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 FACTS

Pricing Enterprise
Platforms api
API Yes
Open Source No
Modalities Multi-Service Platforms
Best For Best for Model Flexibility
Date Added 2026-02-05

WHY WE PICKED IT

Best unified API for accessing multiple LLM providers, making it easy to switch models or use multiple models in one application.

STRENGTHS

LIMITATIONS

GETTING STARTED

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 usage and costs through dashboard. Free tier includes limited credits. Paid plans offer higher limits and priority access.

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

OFFICIAL LINKS

Website↗ Documentation↗ API Docs↗ Pricing↗

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:
  1. Set up OpenRouter API credentials
  2. Configure model preferences
  3. Make API calls using unified format
  4. Handle responses consistently
  5. Monitor usage across providers

Cost-Optimized Model Usage

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

STEPS:
  1. Compare model pricing on OpenRouter
  2. Configure routing rules based on task complexity
  3. Use cheaper models for simple tasks
  4. Reserve premium models for complex tasks
  5. Monitor and adjust based on performance

PRICING

Enterprise

Enterprise pricing — contact OpenRouter for a custom quote and contract terms.

View pricing details →
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FEATURED IN GUIDES

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EXPLORE ALTERNATIVES

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FREQUENTLY ASKED QUESTIONS

Q

Is OpenRouter free?

A

OpenRouter is offered as an enterprise solution; contact the provider for pricing.

Q

Does OpenRouter have an API?

A

Yes, OpenRouter offers an API for programmatic integration.

Q

What is OpenRouter best for?

A

OpenRouter is best for Model Flexibility. Unified API platform providing access to multiple large language models from different providers through a single API interface. Best unified API for accessing multiple LLM providers, making it easy to switch models or use multiple models in one application.

Q

What platforms does OpenRouter support?

A

OpenRouter supports api.

Q

Is OpenRouter open source?

A

No, OpenRouter is not open source.

Q

How do I get started with OpenRouter?

A

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 usage and costs through dashboard. Free tier include...

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Featured on CuratedAI