pricing

func ContextWindowTokens ¶

func ContextWindowTokens(modelID string) int64

ContextWindowTokens returns the known context window size in tokens for modelID, or 0 if the model is unknown. Uses the same qualified→bare lookup chain as CostUSD.

func CostUSD ¶

func CostUSD(qualifiedID string, input, output int64) float64

CostUSD returns the estimated USD cost for a completed run.

qualifiedID should be the OpenRouter-style "provider/model" key (e.g. "anthropic/claude-sonnet-4-6"). Native adapters pass their provider prefix; OpenRouter adapters pass the model ID as-is.

Returns 0 for unknown models — the UI omits the cost field in that case.

func LoadPricing ¶

func LoadPricing(cacheFile string)

LoadPricing populates the dynamic pricing table at startup using OpenRouter's public model listing as the data source.

Fallback chain:

fresh local cache (< 24 h) → OpenRouter fetch + update cache →
stale local cache → hardcoded pricingTable

Blocking with a 5-second HTTP timeout. Safe to call before any goroutines start.

func PricingFor ¶

func PricingFor(qualifiedID string) (inputPMT, outputPMT float64, ok bool)

PricingFor returns the per-million-token USD rates for a model. qualifiedID follows the same "provider/model" convention as CostUSD (e.g. "anthropic/claude-sonnet-4-6"). Returns ok=false for unknown models.

func ProviderQualifiedID ¶

func ProviderQualifiedID(provider, modelID string) string

CostUSD returns the estimated USD cost for a completed run.

qualifiedID should be the OpenRouter-style "provider/model" key (e.g. "anthropic/claude-sonnet-4-6"). Native adapters pass their provider prefix; OpenRouter adapters pass the model ID as-is.

Lookup order:

1. qualifiedID in dynamic pricing (OpenRouter data)
2. qualifiedID in hardcoded table
3. bare portion after the first "/" in both tables (for native-adapter fallback)

Returns 0 for unknown models — the UI omits the cost field in that case. ProviderQualifiedID returns the OpenRouter-style "provider/model" key for a model ID from a given provider. For OpenRouter and LiteLLM the model ID already carries the required prefix and is returned as-is.