The Unified Interface
For LLMs
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25T
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5M+
Global Users
60+
Active Providers
300+
Models
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Connect to multi-model APIs in 3 quick steps—no-code barriers to efficient development
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Unified Interface
Call models via one API
Featured Models
300+ active models on 60+ providers
Claude Opus 4.5
by anthropic
Tokens
366.9B
Weekly Trend
+92.74%
GPT-5.2
by openai
Tokens
95.9B
Weekly Trend
+17.49%
Gemini 3 Pro
by google
Tokens
132.5B
Weekly Trend
+12.09%
Featured Agents
250k+ apps using OpenRouter with 4.2M+ users globally
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Replit
The easiest way to go from idea to app
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BLACKBOXAI
AI agent for builders
Kilo Code
Everything you need for agentic development
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Models
Browse, compare, and test over 300 models from the world's best AI labs.
Claude 3.5 Sonnet
Anthropic
Anthropic's most intelligent model, delivering top-tier performance on highly complex tasks.
GPT-4o
OpenAI
High-intelligence flagship model for complex, multi-step tasks. Multimodal capabilities.
Gemini 1.5 Pro
Mid-size multimodal model that scales across a wide range of tasks.
Mistral Large
Mistral AI
Top-tier reasoning capabilities. Fluent in English, French, Spanish, German, and Italian.
Llama 3 70B
Meta
The most capable open-weights model available today, rivaling top proprietary models.
Perplexity Online
Perplexity
Online model with up-to-date knowledge from the internet.