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import { PricingRegistry } from "../../models/PricingRegistry.js";
import { ModelPricing } from "../../models/types.js";
export class Capabilities {
static getContextWindow(modelId: string): number | null {
const val = ModelRegistry.getContextWindow(modelId, "gemini");
if (val !== undefined && val !== null) return val;
const id = this.normalizeModelId(modelId);
if (
id.match(
/gemini-2\.5-pro-exp-03-25|gemini-2\.0-flash|gemini-2\.0-flash-lite|gemini-1\.5-flash|gemini-1\.5-flash-8b/
)
) {
return 1_048_576;
}
Iif (id.match(/gemini-1\.5-pro/)) {
return 2_097_152;
}
if (id.match(/gemini-embedding-exp/)) {
return 8_192;
}
if (id.match(/text-embedding-004|embedding-001/)) {
return 2_048;
}
if (id.match(/aqa/)) {
return 7_168;
}
return 32_768;
}
static getMaxOutputTokens(modelId: string): number | null {
const val = ModelRegistry.getMaxOutputTokens(modelId, "gemini");
if (val !== undefined && val !== null) return val;
const id = this.normalizeModelId(modelId);
if (id.match(/gemini-2\.5-pro-exp-03-25/)) {
return 64_000;
}
if (
id.match(
/gemini-2\.0-flash|gemini-2\.0-flash-lite|gemini-1\.5-flash|gemini-1\.5-flash-8b|gemini-1\.5-pro/
)
) {
return 8_192;
}
if (id.match(/text-embedding-004|embedding-001/)) {
return 768;
}
Iif (id.match(/imagen-3/)) {
return 4;
}
return 4_096;
}
static supportsVision(modelId: string): boolean {
const model = ModelRegistry.find(modelId, "gemini");
if (model?.modalities?.input?.includes("image")) return true;
const id = this.normalizeModelId(modelId);
if (id.match(/text-embedding|embedding-001|aqa/)) {
return false;
}
return !!id.match(/gemini|flash|pro|imagen/);
}
static supportsTools(modelId: string): boolean {
const model = ModelRegistry.find(modelId, "gemini");
if (model?.capabilities?.includes("function_calling")) return true;
const id = this.normalizeModelId(modelId);
if (id.match(/text-embedding|embedding-001|aqa|flash-lite|imagen|gemini-2\.0-flash-lite/)) {
return false;
}
return !!id.match(/gemini|pro|flash/);
}
static supportsStructuredOutput(modelId: string): boolean {
const model = ModelRegistry.find(modelId, "gemini");
if (model?.capabilities?.includes("structured_output")) return true;
const id = this.normalizeModelId(modelId);
if (id.match(/text-embedding|embedding-001|aqa|imagen/)) {
return false;
}
return true;
}
static supportsSystemInstructions(_modelId: string): boolean {
return true;
}
static supportsJsonMode(modelId: string): boolean {
return this.supportsStructuredOutput(modelId);
}
static supportsEmbeddings(modelId: string): boolean {
const model = ModelRegistry.find(modelId, "gemini");
Iif (model?.modalities?.output?.includes("embeddings")) return true;
const id = this.normalizeModelId(modelId);
return !!id.match(/text-embedding|embedding|gemini-embedding/);
}
static supportsImageGeneration(modelId: string): boolean {
const model = ModelRegistry.find(modelId, "gemini");
if (
model?.capabilities?.includes("image_generation") ||
model?.modalities?.output?.includes("image")
)
return true;
const id = this.normalizeModelId(modelId);
return !!id.match(/imagen/);
}
static supportsTranscription(modelId: string): boolean {
const model = ModelRegistry.find(modelId, "gemini");
Eif (model?.modalities?.input?.includes("audio")) return true;
const id = this.normalizeModelId(modelId);
return !!id.match(/gemini|flash|pro/);
}
static supportsModeration(_modelId: string): boolean {
return false;
}
static normalizeTemperature(temperature: number | undefined, _model: string): number | undefined {
return temperature;
}
static getModalities(modelId: string): { input: string[]; output: string[] } {
const input = ["text"];
const output = ["text"];
const id = this.normalizeModelId(modelId);
if (this.supportsVision(id)) input.push("image", "video", "audio", "pdf");
if (this.supportsImageGeneration(id)) output.push("image");
if (this.supportsEmbeddings(id)) output.push("embeddings");
return { input, output };
}
static getCapabilities(modelId: string): string[] {
const caps = ["streaming"];
const id = this.normalizeModelId(modelId);
if (this.supportsTools(id)) caps.push("function_calling");
if (this.supportsStructuredOutput(id)) caps.push("structured_output");
if (this.supportsEmbeddings(id)) caps.push("embeddings");
if (this.supportsImageGeneration(id)) caps.push("image_generation");
return caps;
}
static getPricing(modelId: string): ModelPricing | undefined {
return PricingRegistry.getPricing(modelId, "gemini");
}
private static normalizeModelId(modelId: string): string {
return modelId.replace("models/", "");
}
}
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