> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Parameter

## Example Usage

```python theme={null}
from openrouter.components import Parameter

# Open enum: unrecognized values are captured as UnrecognizedStr
value: Parameter = "temperature"
```

## Values

This is an open enum. Unrecognized values will not fail type checks.

* `"temperature"`
* `"top_p"`
* `"top_k"`
* `"min_p"`
* `"top_a"`
* `"frequency_penalty"`
* `"presence_penalty"`
* `"repetition_penalty"`
* `"max_tokens"`
* `"max_completion_tokens"`
* `"logit_bias"`
* `"logprobs"`
* `"top_logprobs"`
* `"prediction"`
* `"seed"`
* `"response_format"`
* `"structured_outputs"`
* `"stop"`
* `"tools"`
* `"tool_choice"`
* `"parallel_tool_calls"`
* `"include_reasoning"`
* `"reasoning"`
* `"reasoning_effort"`
* `"web_search_options"`
* `"verbosity"`