Function parseOpenRouterModel

src/api/providers/fetchers/openrouter.ts:187–298

({
	id,
	model,
	inputModality,
	outputModality,
	maxTokens,
	supportedParameters,
}: {
	id: string
	model: OpenRouterBaseModel
	inputModality: string[] | null | undefined
	outputModality: string[] | null | undefined
	maxTokens: number | null | undefined
	supportedParameters?: string[]
})

 */

export const parseOpenRouterModel = ({
	id,
	model,
	inputModality,
	outputModality,
	maxTokens,
	supportedParameters,
}: {
	id: string
	model: OpenRouterBaseModel
	inputModality: string[] | null | undefined
	outputModality: string[] | null | undefined
	maxTokens: number | null | undefined
	supportedParameters?: string[]
}): ModelInfo => {
	const cacheWritesPrice = model.pricing?.input_cache_write
		? parseApiPrice(model.pricing?.input_cache_write)
		: undefined

	const cacheReadsPrice = model.pricing?.input_cache_read ? parseApiPrice(model.pricing?.input_cache_read) : undefined

	const supportsPromptCache = typeof cacheReadsPrice !== "undefined" // some models support caching but don't charge a cacheWritesPrice, e.g. GPT-5

	const modelInfo: ModelInfo = {
		maxTokens: maxTokens || Math.ceil(model.context_length * 0.2),
		contextWindow: model.context_length,
		supportsImages: inputModality?.includes("image") ?? false,
		supportsPromptCache,
		inputPrice: parseApiPrice(model.pricing?.prompt),
		outputPrice: parseApiPrice(model.pricing?.completion),
		cacheWritesPrice,
		cacheReadsPrice,
		description: model.description,
		supportsReasoningEffort: supportedParameters ? supportedParameters.includes("reasoning") : undefined,
		supportedParameters: supportedParameters ? supportedParameters.filter(isModelParameter) : undefined,
	}

	if (OPEN_ROUTER_REASONING_BUDGET_MODELS.has(id)) {
		modelInfo.supportsReasoningBudget = true
	}

	if (OPEN_ROUTER_REQUIRED_REASONING_BUDGET_MODELS.has(id)) {
		modelInfo.requiredReasoningBudget = true
	}

	// For backwards compatibility with the old model definitions we will
	// continue to disable extending thinking for anthropic/claude-3.7-sonnet
	// and force it for anthropic/claude-3.7-sonnet:thinking.

	if (id === "anthropic/claude-3.7-sonnet") {
		modelInfo.maxTokens = anthropicModels["claude-3-7-sonnet-20250219"].maxTokens
		modelInfo.supportsReasoningBudget = false
		modelInfo.supportsReasoningEffort = false
	}

	if (id === "anthropic/claude-3.7-sonnet:thinking") {
		modelInfo.maxTokens = anthropicModels["claude-3-7-sonnet-20250219:thinking"].maxTokens
	}