Free Models Router

Reasoning Tool Calling Attachments Structured Output

The simplest way to get free inference. openrouter/free is a router that selects free models at random from the models available on OpenRouter. The router smartly filters for models that support features needed for your request such as image understanding, tool calling, structured outputs and more.

Providers 2

Released Feb 1, 2026

Input Modalities text, image

Output Modalities text

Tarsk Use coding

Available Providers (2)

Provider	Model ID	Input Cost	Output Cost	Context	Max Output	Docs
OpenRouter	`openrouter/free`	$0.00/MTok	$0.00/MTok	200K	8K
Kilo Gateway	`openrouter/free`	$0.00/MTok	$0.00/MTok	200K	32.8K

Capabilities

Reasoning

Tool Calling

Attachments

Open Weights

Structured Output