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OpenRouter vs Groq

OpenRouter: One API and key to reach hundreds of AI models from many different providers. Groq: Very fast cloud inference for open models, powered by Groq's own chips. Here is how they compare on features, pricing, platforms, pros and cons.

Quick verdict

OpenRouter

Best for: Developers who want to switch or compare models without many integrations.

Stands out for: Huge model selection; Easy to switch models.

Groq

Best for: Developers building real-time apps that need fast responses.

Stands out for: Extremely fast; Free tier to start.

Side-by-side comparison

Comparison of OpenRouter, Groq
Visit openrouter.ai (opens in a new tab)Visit groq.com (opens in a new tab)
What it isOne API and key to reach hundreds of AI models from many different providers.Very fast cloud inference for open models, powered by Groq's own chips.
Pricing
Free + PaidSome free models; others billed per use
Free + Paid
Free to useYesYes
CategoryAI Models & Developer APIsAI Models & Developer APIs
Editor rank#6 in category#9 in category
Made byOpenRouterGroq
Best forDevelopers who want to switch or compare models without many integrations.Developers building real-time apps that need fast responses.
Key features
  • Single API for many providers
  • OpenAI-compatible endpoints
  • Automatic fallbacks
  • Price and model comparison
  • Very low-latency inference
  • Popular open models
  • OpenAI-compatible API
  • Speech-to-text models
Pros
  • Huge model selection
  • Easy to switch models
  • Some free models
  • Extremely fast
  • Free tier to start
  • Easy to switch existing code
Cons
  • Adds a middle layer between you and providers
  • Model availability can change
  • Limited to the models it hosts
  • Free tier has rate limits
Use it to
  • Try several models with the same code
  • Add a fallback model for reliability
  • Compare model prices before choosing
  • Power a voice assistant with fast replies
  • Speed up an agent's tool loop
  • Transcribe audio quickly
Web app
API

OpenRouter vs Groq: questions

Is OpenRouter better than Groq?

Neither wins for everyone. Our editors rank OpenRouter slightly higher overall in AI Models & Developer APIs, but Groq can be the better fit: Developers building real-time apps that need fast responses.

Which is free, OpenRouter or Groq?

Both can be used without paying: OpenRouter is free + paid and Groq is free + paid. Paid plans add more usage or features.

Can I use OpenRouter and Groq together?

Yes. Many people keep both and pick per task, for example try several models with the same code with OpenRouter, and power a voice assistant with fast replies with Groq.

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