Struct SamplerConfig 

pub struct SamplerConfig {
    pub temperature: f32,
    pub top_p: f32,
    pub top_k: u32,
    pub repetition_penalty: f32,
    pub min_p: f32,
    pub presence_penalty: f32,
    pub seed: Option<u64>,
    pub suppress_tokens: Vec<u32>,
    pub penalty_window: usize,
}

Sampling configuration.

Fields

temperature: f32

top_p: f32

top_k: u32

repetition_penalty: f32

min_p: f32

presence_penalty: f32

Flat additive penalty on every token that has appeared at least once (OpenAI-style presence penalty). Qwen3.8’s instruct sampling asks for 1.5 here — the multiplicative repetition_penalty is a different curve and cannot stand in for it.

seed: Option<u64>

Fixed seed for reproducible generation (None = entropy).

suppress_tokens: Vec<u32>

Token IDs to suppress (force logit to -inf).

penalty_window: usize

How many of the most recent ids the repetition / presence penalties look at. 0 = the whole sequence (the historical behaviour). A natively bounded model (Embryo-O1 anchor) never scans unbounded history: the pipeline substitutes BOUNDED_PENALTY_WINDOW there when this is 0.

Implementations

impl SamplerConfig

pub fn penalty_past<'a>( &self, past: &'a [u32], bounded_native: bool, ) -> &'a [u32]

The slice of past the penalties may scan: the last penalty_window ids, or all of them when the window is 0 and the model is not bounded-native.

impl SamplerConfig

pub fn from_provenance(provenance: Option<&Value>) -> Self

The engine defaults with the file’s own sampling recommendation on top: header.provenance.sampling (written by cortiq convert --sampling, e.g. a rewriting model trained and evaluated at temperature 1.0 / top-p 0.95 / no top-k / no min-p / no repetition penalty). Keys the file does not set keep the engine default; explicit flags and request fields still override both.

pub fn file_has_defaults(provenance: Option<&Value>) -> bool

True when the file carries a sampling recommendation.

Trait Implementations

impl Clone for SamplerConfig

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SamplerConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SamplerConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SamplerConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SamplerConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.