diff --git a/src/app/(main)/settings/llm/ProviderList/providers.tsx b/src/app/(main)/settings/llm/ProviderList/providers.tsx
index 11557fbb29e2a..5ca65b00471fd 100644
--- a/src/app/(main)/settings/llm/ProviderList/providers.tsx
+++ b/src/app/(main)/settings/llm/ProviderList/providers.tsx
@@ -10,6 +10,7 @@ import {
   Moonshot,
   OpenRouter,
   Perplexity,
+  Stepfun,
   Together,
   Tongyi,
   ZeroOne,
@@ -31,6 +32,7 @@ import {
   OpenRouterProviderCard,
   PerplexityProviderCard,
   QwenProviderCard,
+  StepfunProviderCard,
   TogetherAIProviderCard,
   ZeroOneProviderCard,
   ZhiPuProviderCard,
@@ -135,6 +137,10 @@ export const useProviderList = (): ProviderItem[] => {
         ...ZeroOneProviderCard,
         title: <ZeroOne.Text size={20} />,
       },
+      {
+        ...StepfunProviderCard,
+        title: <Stepfun.Combine size={20} type={'color'} />,
+      },
     ],
     [azureProvider, ollamaProvider, ollamaProvider, bedrockProvider],
   );
diff --git a/src/app/api/chat/agentRuntime.ts b/src/app/api/chat/agentRuntime.ts
index a21210ae2ebb5..169559804bdcd 100644
--- a/src/app/api/chat/agentRuntime.ts
+++ b/src/app/api/chat/agentRuntime.ts
@@ -163,6 +163,13 @@ const getLlmOptionsFromPayload = (provider: string, payload: JWTPayload) => {
 
       const apiKey = apiKeyManager.pick(payload?.apiKey || QWEN_API_KEY);
 
+      return { apiKey };
+    }
+    case ModelProvider.Stepfun: {
+      const { STEPFUN_API_KEY } = getLLMConfig();
+
+      const apiKey = apiKeyManager.pick(payload?.apiKey || STEPFUN_API_KEY);
+
       return { apiKey };
     }
   }
diff --git a/src/components/ModelIcon/index.tsx b/src/components/ModelIcon/index.tsx
index 932e93519065b..a975c0f1426f5 100644
--- a/src/components/ModelIcon/index.tsx
+++ b/src/components/ModelIcon/index.tsx
@@ -26,6 +26,7 @@ import {
   Rwkv,
   Spark,
   Stability,
+  Stepfun,
   Tongyi,
   Wenxin,
   Yi,
@@ -64,6 +65,7 @@ const ModelIcon = memo<ModelProviderIconProps>(({ model: originModel, size = 12
   if (model.startsWith('openchat')) return <OpenChat.Avatar size={size} />;
   if (model.includes('command')) return <Cohere.Avatar size={size} />;
   if (model.includes('dbrx')) return <Dbrx.Avatar size={size} />;
+  if (model.includes('step')) return <Stepfun.Avatar size={size} />;
 
   // below: To be supported in providers, move up if supported
   if (model.includes('baichuan'))
diff --git a/src/components/ModelProviderIcon/index.tsx b/src/components/ModelProviderIcon/index.tsx
index 0dfd8c98c3fc0..3fccbd2900bfc 100644
--- a/src/components/ModelProviderIcon/index.tsx
+++ b/src/components/ModelProviderIcon/index.tsx
@@ -13,6 +13,7 @@ import {
   OpenAI,
   OpenRouter,
   Perplexity,
+  Stepfun,
   Together,
   Tongyi,
   ZeroOne,
@@ -109,6 +110,10 @@ const ModelProviderIcon = memo<ModelProviderIconProps>(({ provider }) => {
       return <Tongyi size={20} />;
     }
 
+    case ModelProvider.Stepfun: {
+      return <Stepfun size={20} />;
+    }
+
     default: {
       return null;
     }
diff --git a/src/config/llm.ts b/src/config/llm.ts
index f4bd3ed7cb430..6cb23521a50fd 100644
--- a/src/config/llm.ts
+++ b/src/config/llm.ts
@@ -117,6 +117,9 @@ export const getLLMConfig = () => {
 
       ENABLED_QWEN: z.boolean(),
       QWEN_API_KEY: z.string().optional(),
+
+      ENABLED_STEPFUN: z.boolean(),
+      STEPFUN_API_KEY: z.string().optional(),
     },
     runtimeEnv: {
       API_KEY_SELECT_MODE: process.env.API_KEY_SELECT_MODE,
@@ -188,6 +191,9 @@ export const getLLMConfig = () => {
 
       ENABLED_QWEN: !!process.env.QWEN_API_KEY,
       QWEN_API_KEY: process.env.QWEN_API_KEY,
+
+      ENABLED_STEPFUN: !!process.env.STEPFUN_API_KEY,
+      STEPFUN_API_KEY: process.env.STEPFUN_API_KEY,
     },
   });
 };
diff --git a/src/config/modelProviders/index.ts b/src/config/modelProviders/index.ts
index 12150c36f7ea4..4f61d4b0e0e58 100644
--- a/src/config/modelProviders/index.ts
+++ b/src/config/modelProviders/index.ts
@@ -14,6 +14,7 @@ import OpenAIProvider from './openai';
 import OpenRouterProvider from './openrouter';
 import PerplexityProvider from './perplexity';
 import QwenProvider from './qwen';
+import StepfunProvider from './stepfun';
 import TogetherAIProvider from './togetherai';
 import ZeroOneProvider from './zeroone';
 import ZhiPuProvider from './zhipu';
@@ -35,6 +36,7 @@ export const LOBE_DEFAULT_MODEL_LIST: ChatModelCard[] = [
   PerplexityProvider.chatModels,
   AnthropicProvider.chatModels,
   ZeroOneProvider.chatModels,
+  StepfunProvider.chatModels,
 ].flat();
 
 export const DEFAULT_MODEL_PROVIDER_LIST = [
@@ -55,6 +57,7 @@ export const DEFAULT_MODEL_PROVIDER_LIST = [
   MoonshotProvider,
   ZeroOneProvider,
   ZhiPuProvider,
+  StepfunProvider,
 ];
 
 export const filterEnabledModels = (provider: ModelProviderCard) => {
@@ -75,6 +78,7 @@ export { default as OpenAIProviderCard } from './openai';
 export { default as OpenRouterProviderCard } from './openrouter';
 export { default as PerplexityProviderCard } from './perplexity';
 export { default as QwenProviderCard } from './qwen';
+export { default as StepfunProviderCard } from './stepfun';
 export { default as TogetherAIProviderCard } from './togetherai';
 export { default as ZeroOneProviderCard } from './zeroone';
 export { default as ZhiPuProviderCard } from './zhipu';
diff --git a/src/config/modelProviders/stepfun.ts b/src/config/modelProviders/stepfun.ts
new file mode 100644
index 0000000000000..183d3dc96d043
--- /dev/null
+++ b/src/config/modelProviders/stepfun.ts
@@ -0,0 +1,38 @@
+import { ModelProviderCard } from '@/types/llm';
+
+// ref https://platform.stepfun.com/docs/llm/text
+const Stepfun: ModelProviderCard = {
+  chatModels: [
+    {
+      enabled: true,
+      id: 'step-1-256k',
+      tokens: 32_768,
+    },
+    {
+      enabled: true,
+      id: 'step-1-128k',
+      tokens: 32_768,
+    },
+    {
+      enabled: true,
+      id: 'step-1-32k',
+      tokens: 32_768,
+    },
+    {
+      enabled: true,
+      id: 'step-1v-32k',
+      tokens: 32_768,
+      vision: true,
+    },
+    {
+      id: 'step-1-8k',
+      tokens: 8192,
+    },
+  ],
+  checkModel: 'step-1-8k',
+  id: 'stepfun',
+  modelList: { showModelFetcher: true },
+  name: '阶跃星辰',
+};
+
+export default Stepfun;
diff --git a/src/const/settings/llm.ts b/src/const/settings/llm.ts
index 0e251af724b1e..f468b2cb70666 100644
--- a/src/const/settings/llm.ts
+++ b/src/const/settings/llm.ts
@@ -12,6 +12,7 @@ import {
   OpenRouterProviderCard,
   PerplexityProviderCard,
   QwenProviderCard,
+  StepfunProviderCard,
   TogetherAIProviderCard,
   ZeroOneProviderCard,
   ZhiPuProviderCard,
@@ -77,6 +78,10 @@ export const DEFAULT_LLM_CONFIG: UserModelProviderConfig = {
     enabled: false,
     enabledModels: filterEnabledModels(QwenProviderCard),
   },
+  stepfun: {
+    enabled: false,
+    enabledModels: filterEnabledModels(StepfunProviderCard),
+  },
   togetherai: {
     enabled: false,
     enabledModels: filterEnabledModels(TogetherAIProviderCard),
diff --git a/src/libs/agent-runtime/AgentRuntime.ts b/src/libs/agent-runtime/AgentRuntime.ts
index ef07480ac6e09..4ee26dbb7db7e 100644
--- a/src/libs/agent-runtime/AgentRuntime.ts
+++ b/src/libs/agent-runtime/AgentRuntime.ts
@@ -17,6 +17,7 @@ import { LobeOpenAI } from './openai';
 import { LobeOpenRouterAI } from './openrouter';
 import { LobePerplexityAI } from './perplexity';
 import { LobeQwenAI } from './qwen';
+import { LobeStepfunAI } from './stepfun';
 import { LobeTogetherAI } from './togetherai';
 import {
   ChatCompetitionOptions,
@@ -114,6 +115,7 @@ class AgentRuntime {
       openrouter: Partial<ClientOptions>;
       perplexity: Partial<ClientOptions>;
       qwen: Partial<ClientOptions>;
+      stepfun: Partial<ClientOptions>;
       togetherai: Partial<ClientOptions>;
       zeroone: Partial<ClientOptions>;
       zhipu: Partial<ClientOptions>;
@@ -212,6 +214,11 @@ class AgentRuntime {
         runtimeModel = new LobeQwenAI(params.qwen ?? {});
         break;
       }
+
+      case ModelProvider.Stepfun: {
+        runtimeModel = new LobeStepfunAI(params.stepfun ?? {});
+        break;
+      }
     }
 
     return new AgentRuntime(runtimeModel);
diff --git a/src/libs/agent-runtime/stepfun/index.ts b/src/libs/agent-runtime/stepfun/index.ts
new file mode 100644
index 0000000000000..02727361279ea
--- /dev/null
+++ b/src/libs/agent-runtime/stepfun/index.ts
@@ -0,0 +1,10 @@
+import { ModelProvider } from '../types';
+import { LobeOpenAICompatibleFactory } from '../utils/openaiCompatibleFactory';
+
+export const LobeStepfunAI = LobeOpenAICompatibleFactory({
+  baseURL: 'https://api.stepfun.com/v1',
+  debug: {
+    chatCompletion: () => process.env.DEBUG_STEPFUN_CHAT_COMPLETION === '1',
+  },
+  provider: ModelProvider.Stepfun,
+});
diff --git a/src/libs/agent-runtime/types/type.ts b/src/libs/agent-runtime/types/type.ts
index 3bcadf517675d..bd5feef94b88f 100644
--- a/src/libs/agent-runtime/types/type.ts
+++ b/src/libs/agent-runtime/types/type.ts
@@ -36,6 +36,7 @@ export enum ModelProvider {
   OpenRouter = 'openrouter',
   Perplexity = 'perplexity',
   Qwen = 'qwen',
+  Stepfun = 'stepfun',
   TogetherAI = 'togetherai',
   ZeroOne = 'zeroone',
   ZhiPu = 'zhipu',
diff --git a/src/server/globalConfig/index.ts b/src/server/globalConfig/index.ts
index 7a0a79cf60ab3..41c774f094606 100644
--- a/src/server/globalConfig/index.ts
+++ b/src/server/globalConfig/index.ts
@@ -33,6 +33,7 @@ export const getServerGlobalConfig = () => {
     ENABLED_MINIMAX,
     ENABLED_MISTRAL,
     ENABLED_QWEN,
+    ENABLED_STEPFUN,
 
     ENABLED_AZURE_OPENAI,
     AZURE_MODEL_LIST,
@@ -104,6 +105,8 @@ export const getServerGlobalConfig = () => {
       perplexity: { enabled: ENABLED_PERPLEXITY },
       qwen: { enabled: ENABLED_QWEN },
 
+      stepfun: { enabled: ENABLED_STEPFUN },
+
       togetherai: {
         enabled: ENABLED_TOGETHERAI,
         enabledModels: extractEnabledModels(TOGETHERAI_MODEL_LIST),
diff --git a/src/types/user/settings/keyVaults.ts b/src/types/user/settings/keyVaults.ts
index e99d1411c782f..117254f2b5114 100644
--- a/src/types/user/settings/keyVaults.ts
+++ b/src/types/user/settings/keyVaults.ts
@@ -31,6 +31,7 @@ export interface UserKeyVaults {
   password?: string;
   perplexity?: OpenAICompatibleKeyVault;
   qwen?: OpenAICompatibleKeyVault;
+  stepfun?: OpenAICompatibleKeyVault;
   togetherai?: OpenAICompatibleKeyVault;
   zeroone?: OpenAICompatibleKeyVault;
   zhipu?: OpenAICompatibleKeyVault;