> ## 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

```go theme={null}
import (
	"github.com/OpenRouterTeam/go-sdk/models/components"
)

value := components.ParameterTemperature

// Open enum: custom values can be created with a direct type cast
custom := components.Parameter("custom_value")
```

## Values

| Name                           | Value                   |
| ------------------------------ | ----------------------- |
| `ParameterTemperature`         | temperature             |
| `ParameterTopP`                | top\_p                  |
| `ParameterTopK`                | top\_k                  |
| `ParameterMinP`                | min\_p                  |
| `ParameterTopA`                | top\_a                  |
| `ParameterFrequencyPenalty`    | frequency\_penalty      |
| `ParameterPresencePenalty`     | presence\_penalty       |
| `ParameterRepetitionPenalty`   | repetition\_penalty     |
| `ParameterMaxTokens`           | max\_tokens             |
| `ParameterMaxCompletionTokens` | max\_completion\_tokens |
| `ParameterLogitBias`           | logit\_bias             |
| `ParameterLogprobs`            | logprobs                |
| `ParameterTopLogprobs`         | top\_logprobs           |
| `ParameterPrediction`          | prediction              |
| `ParameterSeed`                | seed                    |
| `ParameterResponseFormat`      | response\_format        |
| `ParameterStructuredOutputs`   | structured\_outputs     |
| `ParameterStop`                | stop                    |
| `ParameterTools`               | tools                   |
| `ParameterToolChoice`          | tool\_choice            |
| `ParameterParallelToolCalls`   | parallel\_tool\_calls   |
| `ParameterIncludeReasoning`    | include\_reasoning      |
| `ParameterReasoning`           | reasoning               |
| `ParameterReasoningEffort`     | reasoning\_effort       |
| `ParameterWebSearchOptions`    | web\_search\_options    |
| `ParameterVerbosity`           | verbosity               |