Struct ModelSelector 

pub struct ModelSelector { /* private fields */ }

Registry and selection engine for ModelProfiles.

Implementations

impl ModelSelector

pub fn new(strategy: SelectionStrategy) -> Self

Create a new selector with no registered profiles.

pub fn register(&mut self, profile: ModelProfile)

Register (or replace) a model profile.

pub fn select(&self, criteria: &SelectionCriteria) -> Option<&ModelProfile>

Return the best model according to the active strategy that satisfies all hard constraints in criteria, or None if no model qualifies.

pub fn rank_all(&self, criteria: &SelectionCriteria) -> Vec<&ModelProfile>

Return all eligible profiles ranked from best to worst by the active strategy.

pub fn estimate_cost( &self, model_id: &str, tokens_in: usize, tokens_out: usize, ) -> f64

Estimate the cost in USD for a single request on model_id.

Uses the profile’s blended cost_per_1k_tokens applied to the total token count (tokens_in + tokens_out). Returns 0.0 if the model ID is not registered.

pub fn cheapest_for_quality(&self, min_quality: f64) -> Option<&ModelProfile>

Return the cheapest registered model whose quality_score >= min_quality, or None if no model meets the threshold.