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Unified OpenAI-compatible API fronting 400+ LLMs across 70+ providers, with automatic fallback, provider preferences, BYOK, and pay-per-token billing.
Unified OpenAI-compatible API fronting 400+ LLMs across 70+ providers, with automatic fallback, provider preferences, BYOK, and pay-per-token billing.
OpenRouter (openrouter.ai) is a routing layer that gives you a single OpenAI-compatible endpoint (openrouter.ai/api/v1/chat/completions) fronting 400+ active language models from 70+ providers — Anthropic, OpenAI, Google, Meta, Mistral, DeepSeek, Zhipu, Qwen, Cohere, xAI, Together, Fireworks, Groq, Amazon Bedrock, Google Vertex, and dozens of smaller labs. Instead of maintaining half a dozen provider SDKs, keys, and billing relationships, you send requests with a model slug like anthropic/claude-opus-4-7 or openai/gpt-5 and OpenRouter routes to the right provider, streams the response back, and bills your OpenRouter credit balance. Provider routing preferences let you optimize for price, latency, throughput, or privacy (Zero Data Retention), and if one provider throttles or errors, OpenRouter automatically falls back to an equivalent endpoint so your app keeps running. BYOK (Bring Your Own Key) lets you plug in your own Anthropic, OpenAI, or Bedrock keys and pay only a 5% fee on what those requests would have cost on OpenRouter — waived for the first 1M BYOK requests per month. Extras include per-app spending guardrails with budget caps, request analytics and logs, model/price/latency leaderboards, and a rotating catalog of free community-hosted models with rate limits. OpenRouter has become the default gateway for many agent frameworks (LangChain, LlamaIndex, Continue.dev, Aider), MCP hosts, and no-code tools. Compared to LiteLLM (self-hosted proxy you run yourself) or Portkey (enterprise gateway with heavier governance features), OpenRouter is the SaaS convenience option — you trade an extra network hop and a single-vendor dependency for zero infra and one bill.
OpenRouter is strongest for teams that want broad model access, OpenAI-compatible integration, and usage-based billing without managing many separate provider accounts. It is less ideal when a team only needs one provider, requires direct vendor-specific features, or needs a fully negotiated enterprise contract before production use.
OpenRouter provides one API key and a unified interface for accessing models from many providers. The website states that the OpenAI SDK works out of the box, which reduces migration work for teams already using OpenAI-style APIs.
The platform lists a broad catalog of active models and providers, including major model families such as Claude, GPT, and Gemini. This breadth is valuable for teams comparing quality, latency, cost, and availability across different model vendors.
OpenRouter advertises reliable AI model access through distributed infrastructure and the ability to fall back to other providers when one goes down. This is a practical production feature for apps that cannot afford to stop working when a single provider is unavailable.
The website emphasizes keeping costs in check while giving developers model and provider choices. Teams can use this to balance premium models for hard tasks with lower-cost models for routine requests.
OpenRouter supports data policies so organizations can control which models and providers receive prompts. Governance features are useful for teams that need budget enforcement, provider restrictions, or safer model access across multiple applications.
Provider list price
5% of equivalent OpenRouter cost
$0
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OpenRouter's 2026 updates emphasize broader model access, speech and transcription APIs, Model Fusion, private models, enterprise workspace controls, and additional governance features. Teams evaluating these capabilities should verify current availability in the live product documentation before relying on them in production.
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GPU cloud and inference platform for open-source LLMs — fast, low-cost APIs for Llama, DeepSeek, Qwen, Mistral, plus fine-tuning and dedicated endpoints.
LLM Infrastructure
Ultra-fast LLM inference cloud powered by custom LPU (Language Processing Unit) chips — the fastest hosted API for Llama, Kimi K2, Qwen, and many open-source models.
Pricing and features change often. If anything on this OpenRouter page is wrong or missing, tell us and include a link to the source. We review every correction.