Let the LLM models have meta information such as pricing and human-re…

…adable names

Part of #296

model/llm/llm.go

@@ -31,6 +31,9 @@ type Model struct {
 
 	// queryAttempts holds the number of query attempts to perform when a model request errors in the process of solving a task.
 	queryAttempts uint
+
+	// metaInformation holds a model meta information.
+	metaInformation *model.MetaInformation
 }
 
 // NewModel returns an LLM model corresponding to the given identifier which is queried via the given provider.
@@ -43,6 +46,23 @@ func NewModel(provider provider.Query, modelIdentifier string) *Model {
 	}
 }
 
+// NewModelWithMetaInformation returns a LLM model with meta information corresponding to the given identifier which is queried via the given provider.
+func NewModelWithMetaInformation(provider provider.Query, modelIdentifier string, metaInformation *model.MetaInformation) *Model {
+	return &Model{
+		provider: provider,
+		model:    modelIdentifier,
+
+		queryAttempts: 1,
+
+		metaInformation: metaInformation,
+	}
+}
+
+// MetaInformation returns the meta information of a model.
+func (m *Model) MetaInformation() (metaInformation *model.MetaInformation) {
+	return m.metaInformation
+}
+
 // llmSourceFilePromptContext is the context for template for generating an LLM test generation prompt.
 type llmSourceFilePromptContext struct {
 	// Language holds the programming language name.

model/model.go

@@ -9,6 +9,9 @@ import (
 type Model interface {
 	// ID returns the unique ID of this model.
 	ID() (id string)
+
+	// MetaInformation returns the meta information of a model.
+	MetaInformation() *MetaInformation
 }
 
 // MetaInformation holds a model.

model/symflower/symflower.go

@@ -46,6 +46,11 @@ func (m *Model) ID() (id string) {
 	return "symflower" + provider.ProviderModelSeparator + "symbolic-execution"
 }
 
+// MetaInformation returns the meta information of a model.
+func (m *Model) MetaInformation() (metaInformation *model.MetaInformation) {
+	return nil
+}
+
 var _ model.CapabilityWriteTests = (*Model)(nil)
 
 // generateTestsForFile generates test files for the given implementation file in a repository.

provider/openrouter/openrouter.go

@@ -57,7 +57,7 @@ func (p *Provider) ID() (id string) {
 
 // ModelsList holds a list of models.
 type ModelsList struct {
-	Models []model.MetaInformation `json:"data"`
+	Models []*model.MetaInformation `json:"data"`
 }
 
 // Models returns which models are available to be queried via this provider.
@@ -69,7 +69,8 @@ func (p *Provider) Models() (models []model.Model, err error) {
 
 	models = make([]model.Model, len(responseModels.Models))
 	for i, model := range responseModels.Models {
-		models[i] = llm.NewModel(p, p.ID()+provider.ProviderModelSeparator+model.ID)
+		model.ID = p.ID() + provider.ProviderModelSeparator + model.ID
+		models[i] = llm.NewModelWithMetaInformation(p, p.ID()+provider.ProviderModelSeparator+model.ID, model)
 	}
 
 	return models, nil