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MULTI-SERVICE PLATFORMS • CURATED • UPDATED DEC 28, 2025

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 Replicate Google AI Studio Hugging Face Inference API Groq

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

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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EXPLORE ALTERNATIVES

View OpenRouter Alternatives (2026) →

Compare OpenRouter with 5+ similar multi-service platforms AI tools.

FREQUENTLY ASKED QUESTIONS

Q:

Is OpenRouter free?

A:

It offers a free tier with limited features, plus paid plans for full access and higher usage limits.

Q:

What can I do with OpenRouter?

A:

You can use OpenRouter 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. Supports models from ...

Q:

Does OpenRouter have an API?

A:

Yes, it offers an API for developers. API documentation is available at https://openrouter.ai/docs/api-reference.

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. Config...