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OpenRouter vs Together AI

OpenRouter: One API and key to reach hundreds of AI models from many different providers. Together AI: Cloud platform to run, fine-tune and train open-source AI models. 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.

Together AI

Best for: Teams building on open-source models at production scale.

Stands out for: Wide open-model catalogue; Fine-tuning built in.

Side-by-side comparison

Comparison of OpenRouter, Together AI
OpenRouter
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Together AI
Visit together.ai (opens in a new tab)
What it isOne API and key to reach hundreds of AI models from many different providers.Cloud platform to run, fine-tune and train open-source AI models.
Pricing
Free + PaidSome free models; others billed per use
PaidPay per use
Free to useYesNo
CategoryAI Models & Developer APIsAI Models & Developer APIs
Editor rank#6 in category#12 in category
Made byOpenRouterTogether AI
Best forDevelopers who want to switch or compare models without many integrations.Teams building on open-source models at production scale.
Key features
  • Single API for many providers
  • OpenAI-compatible endpoints
  • Automatic fallbacks
  • Price and model comparison
  • APIs for many open models
  • Fine-tuning service
  • Dedicated endpoints and GPU clusters
  • OpenAI-compatible API
Pros
  • Huge model selection
  • Easy to switch models
  • Some free models
  • Wide open-model catalogue
  • Fine-tuning built in
  • Scales to large workloads
Cons
  • Adds a middle layer between you and providers
  • Model availability can change
  • Billed by usage
  • Best suited to technical teams
Use it to
  • Try several models with the same code
  • Add a fallback model for reliability
  • Compare model prices before choosing
  • Serve an open model in production
  • Fine-tune a model on company data
  • Rent GPUs for training
Web app
API

OpenRouter vs Together AI: questions

Is OpenRouter better than Together AI?

Neither wins for everyone. Our editors rank OpenRouter slightly higher overall in AI Models & Developer APIs, but Together AI can be the better fit: Teams building on open-source models at production scale.

Which is free, OpenRouter or Together AI?

OpenRouter can be used for free (free + paid), while Together AI is paid.

Can I use OpenRouter and Together AI together?

Yes. Many people keep both and pick per task, for example try several models with the same code with OpenRouter, and serve an open model in production with Together AI.

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