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AI Playground (free models)

A minimal playground for the free community models on OpenRouter. Choose a model, optionally set a system prompt (its role and rules), write your prompt, and run. Use it to draft, rewrite, summarise, translate, extract data, or just experiment. Rate-limited and shared, so nothing confidential.

How to use it

  1. Choose a model from the list of free models.
  2. Optionally add a system prompt to set the model's role.
  3. Write your prompt, adjust creativity, complete the verification and Run.
  4. Copy the output.

FAQ

Is it really free?
Yes โ€” it uses models that are free on OpenRouter. The daily quota is shared across everyone using the site, so heavy use is rate-limited.
Which model should I pick?
For general text, a fast instruct/chat model. Larger models are slower but often better at reasoning. Vision models also accept images elsewhere on the site.

Related tools

Free to use, no sign-up. Calculations run in your browser โ€” nothing you type is sent to a server. These tools are for general information only, not professional advice. See the full tool list.