feat: Add SiliconFlow support for chat and embedding models (#1979)

src/LLMProviders/chatModelManager.ts

@@ -52,6 +52,7 @@ const CHAT_PROVIDER_CONSTRUCTORS = {
   [ChatModelProviders.LM_STUDIO]: ChatOpenAI,
   [ChatModelProviders.GROQ]: ChatGroq,
   [ChatModelProviders.OPENAI_FORMAT]: ChatOpenAI,
+  [ChatModelProviders.SILICONFLOW]: ChatOpenAI,
   [ChatModelProviders.COPILOT_PLUS]: ChatOpenAI,
   [ChatModelProviders.MISTRAL]: ChatMistralAI,
   [ChatModelProviders.DEEPSEEK]: ChatDeepSeek,
@@ -88,6 +89,7 @@ export default class ChatModelManager {
     [ChatModelProviders.MISTRAL]: () => getSettings().mistralApiKey,
     [ChatModelProviders.DEEPSEEK]: () => getSettings().deepseekApiKey,
     [ChatModelProviders.AMAZON_BEDROCK]: () => getSettings().amazonBedrockApiKey,
+    [ChatModelProviders.SILICONFLOW]: () => getSettings().siliconflowApiKey,
   } as const;
 
   private constructor() {
@@ -297,6 +299,20 @@ export default class ChatModelManager {
           customModel
         ),
       },
+      [ChatModelProviders.SILICONFLOW]: {
+        modelName: modelName,
+        apiKey: await getDecryptedKey(customModel.apiKey || settings.siliconflowApiKey),
+        configuration: {
+          baseURL: customModel.baseUrl || ProviderInfo[ChatModelProviders.SILICONFLOW].host,
+          fetch: customModel.enableCors ? safeFetch : undefined,
+        },
+        ...this.getOpenAISpecialConfig(
+          modelName,
+          customModel.maxTokens ?? settings.maxTokens,
+          customModel.temperature ?? settings.temperature,
+          customModel
+        ),
+      },
       [ChatModelProviders.COPILOT_PLUS]: {
         modelName: modelName,
         apiKey: await getDecryptedKey(settings.plusLicenseKey),
@@ -477,6 +493,7 @@ export default class ChatModelManager {
           ChatModelProviders.OPENAI_FORMAT,
           ChatModelProviders.MISTRAL,
           ChatModelProviders.DEEPSEEK,
+          ChatModelProviders.SILICONFLOW,
         ].includes(provider)
       ) {
         params.topP = customModel.topP;
@@ -496,6 +513,7 @@ export default class ChatModelManager {
           ChatModelProviders.OPENAI_FORMAT,
           ChatModelProviders.MISTRAL,
           ChatModelProviders.DEEPSEEK,
+          ChatModelProviders.SILICONFLOW,
         ].includes(provider)
       ) {
         params.frequencyPenalty = customModel.frequencyPenalty;

src/LLMProviders/embeddingManager.ts

@@ -1,6 +1,6 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
 import { CustomModel } from "@/aiParams";
-import { BREVILABS_MODELS_BASE_URL, EmbeddingModelProviders } from "@/constants";
+import { BREVILABS_MODELS_BASE_URL, EmbeddingModelProviders, ProviderInfo } from "@/constants";
 import { getDecryptedKey } from "@/encryptionService";
 import { CustomError } from "@/error";
 import { getModelKeyFromModel, getSettings, subscribeToSettingsChange } from "@/settings/model";
@@ -27,6 +27,7 @@ const EMBEDDING_PROVIDER_CONSTRUCTORS = {
   [EmbeddingModelProviders.OLLAMA]: OllamaEmbeddings,
   [EmbeddingModelProviders.LM_STUDIO]: CustomOpenAIEmbeddings,
   [EmbeddingModelProviders.OPENAI_FORMAT]: OpenAIEmbeddings,
+  [EmbeddingModelProviders.SILICONFLOW]: CustomOpenAIEmbeddings,
 } as const;
 
 type EmbeddingProviderConstructorMap = typeof EMBEDDING_PROVIDER_CONSTRUCTORS;
@@ -54,6 +55,7 @@ export default class EmbeddingManager {
     [EmbeddingModelProviders.OLLAMA]: () => "default-key",
     [EmbeddingModelProviders.LM_STUDIO]: () => "default-key",
     [EmbeddingModelProviders.OPENAI_FORMAT]: () => "default-key",
+    [EmbeddingModelProviders.SILICONFLOW]: () => getSettings().siliconflowApiKey,
   };
 
   private constructor() {
@@ -279,6 +281,15 @@ export default class EmbeddingManager {
           dangerouslyAllowBrowser: true,
         },
       },
+      [EmbeddingModelProviders.SILICONFLOW]: {
+        modelName,
+        apiKey: await getDecryptedKey(customModel.apiKey || settings.siliconflowApiKey),
+        batchSize: getSettings().embeddingBatchSize,
+        configuration: {
+          baseURL: customModel.baseUrl || ProviderInfo[EmbeddingModelProviders.SILICONFLOW].host,
+          fetch: customModel.enableCors ? safeFetch : undefined,
+        },
+      },
     };
 
     const selectedProviderConfig =

src/constants.ts

@@ -166,6 +166,8 @@ export enum ChatModels {
   OPENROUTER_GPT_41 = "openai/gpt-4.1",
   OPENROUTER_GPT_41_MINI = "openai/gpt-4.1-mini",
   OPENROUTER_GROK_4_FAST = "x-ai/grok-4-fast",
+  SILICONFLOW_DEEPSEEK_V3 = "deepseek-ai/DeepSeek-V3",
+  SILICONFLOW_DEEPSEEK_R1 = "deepseek-ai/DeepSeek-R1",
 }
 
 // Model Providers
@@ -185,6 +187,7 @@ export enum ChatModelProviders {
   MISTRAL = "mistralai",
   DEEPSEEK = "deepseek",
   AMAZON_BEDROCK = "amazon-bedrock",
+  SILICONFLOW = "siliconflow",
 }
 
 export enum ModelCapability {
@@ -381,6 +384,25 @@ export const BUILTIN_CHAT_MODELS: CustomModel[] = [
     isBuiltIn: true,
     capabilities: [ModelCapability.REASONING],
   },
+  {
+    name: ChatModels.SILICONFLOW_DEEPSEEK_V3,
+    provider: ChatModelProviders.SILICONFLOW,
+    enabled: true,
+    isBuiltIn: true,
+    core: true,
+    projectEnabled: true,
+    baseUrl: "https://api.siliconflow.com/v1",
+  },
+  {
+    name: ChatModels.SILICONFLOW_DEEPSEEK_R1,
+    provider: ChatModelProviders.SILICONFLOW,
+    enabled: true,
+    isBuiltIn: true,
+    core: true,
+    projectEnabled: true,
+    baseUrl: "https://api.siliconflow.com/v1",
+    capabilities: [ModelCapability.REASONING],
+  },
 ];
 
 export enum EmbeddingModelProviders {
@@ -393,6 +415,7 @@ export enum EmbeddingModelProviders {
   OPENAI_FORMAT = "3rd party (openai-format)",
   COPILOT_PLUS = "copilot-plus",
   COPILOT_PLUS_JINA = "copilot-plus-jina",
+  SILICONFLOW = "siliconflow",
 }
 
 export enum EmbeddingModels {
@@ -406,6 +429,7 @@ export enum EmbeddingModels {
   COPILOT_PLUS_SMALL = "copilot-plus-small",
   COPILOT_PLUS_LARGE = "copilot-plus-large",
   COPILOT_PLUS_MULTILINGUAL = "copilot-plus-multilingual",
+  SILICONFLOW_QWEN3_EMBEDDING_0_6B = "Qwen/Qwen3-Embedding-0.6B",
 }
 
 export const BUILTIN_EMBEDDING_MODELS: CustomModel[] = [
@@ -483,6 +507,15 @@ export const BUILTIN_EMBEDDING_MODELS: CustomModel[] = [
     isBuiltIn: true,
     isEmbeddingModel: true,
   },
+  {
+    name: EmbeddingModels.SILICONFLOW_QWEN3_EMBEDDING_0_6B,
+    provider: EmbeddingModelProviders.SILICONFLOW,
+    enabled: true,
+    isBuiltIn: true,
+    isEmbeddingModel: true,
+    core: true,
+    baseUrl: "https://api.siliconflow.com/v1",
+  },
 ];
 
 // Embedding Models
@@ -530,6 +563,13 @@ export const ProviderInfo: Record<Provider, ProviderMetadata> = {
     listModelURL: "https://api.openai.com/v1/models",
     testModel: ChatModels.GPT_41,
   },
+  [ChatModelProviders.SILICONFLOW]: {
+    label: "SiliconFlow",
+    host: "https://api.siliconflow.com/v1",
+    keyManagementURL: "https://cloud.siliconflow.com/me/account/ak",
+    listModelURL: "https://api.siliconflow.com/v1/models",
+    testModel: ChatModels.SILICONFLOW_DEEPSEEK_V3,
+  },
   [ChatModelProviders.AZURE_OPENAI]: {
     label: "Azure OpenAI",
     host: "",
@@ -631,6 +671,7 @@ export const ProviderSettingsKeyMap: Record<SettingKeyProviders, keyof CopilotSe
   mistralai: "mistralApiKey",
   deepseek: "deepseekApiKey",
   "amazon-bedrock": "amazonBedrockApiKey",
+  siliconflow: "siliconflowApiKey",
 };
 
 export enum VAULT_VECTOR_STORE_STRATEGY {
@@ -749,6 +790,7 @@ export const DEFAULT_SETTINGS: CopilotSettings = {
   deepseekApiKey: "",
   amazonBedrockApiKey: "",
   amazonBedrockRegion: "",
+  siliconflowApiKey: "",
   defaultChainType: ChainType.LLM_CHAIN,
   defaultModelKey: ChatModels.OPENROUTER_GEMINI_2_5_FLASH + "|" + ChatModelProviders.OPENROUTERAI,
   embeddingModelKey: EmbeddingModels.OPENAI_EMBEDDING_SMALL + "|" + EmbeddingModelProviders.OPENAI,

src/settings/model.ts

@@ -67,6 +67,7 @@ export interface CopilotSettings {
   deepseekApiKey: string;
   amazonBedrockApiKey: string;
   amazonBedrockRegion: string;
+  siliconflowApiKey: string;
   defaultChainType: ChainType;
   defaultModelKey: string;
   embeddingModelKey: string;

src/settings/providerModels.ts

@@ -323,6 +323,27 @@ export interface OpenRouterAIModel {
   per_request_limits?: Record<string, string>;
 }
 
+// SiliconFlow response model definition
+export interface SiliconFlowModelResponse {
+  object: string;
+  data: SiliconFlowModel[];
+}
+
+/**
+ {
+ "id": "deepseek-ai/DeepSeek-V3",
+ "object": "model",
+ "created": 0,
+ "owned_by": ""
+ }
+ */
+export interface SiliconFlowModel {
+  id: string;
+  object: string;
+  created: number;
+  owned_by: string;
+}
+
 // Response type mapping
 export interface ProviderResponseMap {
   [ChatModelProviders.OPENAI]: OpenAIModelResponse;
@@ -334,6 +355,7 @@ export interface ProviderResponseMap {
   [ChatModelProviders.GROQ]: GroqModelResponse;
   [ChatModelProviders.XAI]: XAIModelResponse;
   [ChatModelProviders.OPENROUTERAI]: OpenRouterAIModelResponse;
+  [ChatModelProviders.SILICONFLOW]: SiliconFlowModelResponse;
   [ChatModelProviders.COPILOT_PLUS]: null;
   [ChatModelProviders.AZURE_OPENAI]: null;
   [ChatModelProviders.AMAZON_BEDROCK]: unknown;
@@ -421,6 +443,13 @@ export const providerAdapters: ProviderModelAdapters = {
       name: model.id,
       provider: ChatModelProviders.OPENROUTERAI,
     })) || [],
+
+  [ChatModelProviders.SILICONFLOW]: (data): StandardModel[] =>
+    data.data?.map((model) => ({
+      id: model.id,
+      name: model.id,
+      provider: ChatModelProviders.SILICONFLOW,
+    })) || [],
 };
 
 /**