Founded

2023

Starting Price

$0

About OpenRouter

OpenRouter is a managed LLM gateway providing a single OpenAI-compatible API to access 300+ AI models from 60+ providers. It enables developers to swap models without rewriting code with automatic failover and consolidated billing.

Pros & Cons

Pros

Single integration for 300+ models
No markup on model pricing
Automatic failover for higher uptime
Zero-logging by default
Free tier for experimentation

Key Features

Unified API for 300+ Models

Access models from 60+ providers through a single OpenAI-compatible endpoint

Intelligent Routing

Automatic failover with continuous health monitoring

Auto-Router

Routes queries to optimal models based on complexity and cost

Multimodal Support

Send images, PDFs, audio through the unified API

Privacy-First

Zero-logging by default with data policy routing

Prompt Caching

Built-in caching, budgets, and spend controls

Observability

Integrates with 15+ monitoring platforms

Developer SDKs

TypeScript and Python SDKs with OAuth and streaming

Pricing

Free

$0

25+ free models
50 requests/day
Chat and API access

Pay-as-you-go

Usage-based/per use

Best For

Multi-Model AI Apps

Different models for different tasks through one API

AI Agent Workflows

Reliable model access with failover and dynamic selection

Rapid Model Evaluation

Benchmark models without separate accounts

Cost-Optimized Inference

Auto-routing minimizes costs

Tags:ai-gateway llm api model-routing

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Featured In

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Best for developers who want to compare models through hands-on testing rather than reading benchmarks. The unified API removes the friction of managing multiple provider integrations.

#4

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Best for prompt engineers who need model flexibility — test across 300+ models, avoid provider lock-in, and use intelligent routing to optimize cost vs. quality for every query.

OpenRouter