feat: Add DeepSeek AI provider support to Eliza

.env.example

@@ -16,6 +16,7 @@ LARGE_OPENAI_MODEL=             # Default: gpt-4o
 EMBEDDING_OPENAI_MODEL=         # Default: text-embedding-3-small
 IMAGE_OPENAI_MODEL=             # Default: dall-e-3
 
+
 # Eternal AI's Decentralized Inference API
 ETERNALAI_URL=
 ETERNALAI_MODEL=                # Default: "neuralmagic/Meta-Llama-3.1-405B-Instruct-quantized.w4a16"
@@ -37,6 +38,8 @@ SMALL_HYPERBOLIC_MODEL=         # Default: meta-llama/Llama-3.2-3B-Instruct
 MEDIUM_HYPERBOLIC_MODEL=        # Default: meta-llama/Meta-Llama-3.1-70B-Instruct
 LARGE_HYPERBOLIC_MODEL=         # Default: meta-llama/Meta-Llama-3.1-405-Instruct
 
+DEEPSEEK_API_KEY=              # DeepSeek API key
+
 # Livepeer configuration
 LIVEPEER_GATEWAY_URL=           # Free inference gateways and docs: https://livepeer-eliza.com/
 LIVEPEER_IMAGE_MODEL=           # Default: ByteDance/SDXL-Lightning
@@ -175,6 +178,13 @@ MEDIUM_VOLENGINE_MODEL=         # Default: doubao-pro-128k
 LARGE_VOLENGINE_MODEL=          # Default: doubao-pro-256k
 VOLENGINE_EMBEDDING_MODEL=      # Default: doubao-embedding
 
+# DeepSeek Configuration
+DEEPSEEK_API_URL=              # Default: https://api.deepseek.com
+SMALL_DEEPSEEK_MODEL=          # Default: deepseek-chat
+MEDIUM_DEEPSEEK_MODEL=         # Default: deepseek-chat
+LARGE_DEEPSEEK_MODEL=          # Default: deepseek-chat
+
+
 # EVM
 EVM_PRIVATE_KEY=
 EVM_PROVIDER_URL=

agent/src/index.ts

@@ -349,6 +349,11 @@ export function getTokenForProvider(
                 character.settings?.secrets?.GOOGLE_GENERATIVE_AI_API_KEY ||
                 settings.GOOGLE_GENERATIVE_AI_API_KEY
             );
+        case ModelProviderName.DEEPSEEK:
+            return (
+                character.settings?.secrets?.DEEPSEEK_API_KEY ||
+                settings.DEEPSEEK_API_KEY
+            );
         default:
             const errorMessage = `Failed to get token - unsupported model provider: ${provider}`;
             elizaLogger.error(errorMessage);

packages/core/src/generation.ts

@@ -795,6 +795,37 @@ export async function generateText({
                 break;
             }
 
+            case ModelProviderName.DEEPSEEK: {
+                elizaLogger.debug("Initializing Deepseek model.");
+                const serverUrl = models[provider].endpoint;
+                const deepseek = createOpenAI({
+                    apiKey,
+                    baseURL: serverUrl,
+                    fetch: runtime.fetch,
+                });
+
+                const { text: deepseekResponse } = await aiGenerateText({
+                    model: deepseek.languageModel(model),
+                    prompt: context,
+                    temperature: temperature,
+                    system:
+                        runtime.character.system ??
+                        settings.SYSTEM_PROMPT ??
+                        undefined,
+                    tools: tools,
+                    onStepFinish: onStepFinish,
+                    maxSteps: maxSteps,
+                    maxTokens: max_response_length,
+                    frequencyPenalty: frequency_penalty,
+                    presencePenalty: presence_penalty,
+                    experimental_telemetry: experimental_telemetry,
+                });
+
+                response = deepseekResponse;
+                elizaLogger.debug("Received response from Deepseek model.");
+                break;
+            }
+
             default: {
                 const errorMessage = `Unsupported provider: ${provider}`;
                 elizaLogger.error(errorMessage);
@@ -1664,6 +1695,8 @@ export async function handleProvider(
             return await handleOpenRouter(options);
         case ModelProviderName.OLLAMA:
             return await handleOllama(options);
+        case ModelProviderName.DEEPSEEK:
+            return await handleDeepSeek(options);
         default: {
             const errorMessage = `Unsupported provider: ${provider}`;
             elizaLogger.error(errorMessage);
@@ -1886,6 +1919,32 @@ async function handleOllama({
     });
 }
 
+/**
+ * Handles object generation for DeepSeek models.
+ *
+ * @param {ProviderOptions} options - Options specific to DeepSeek.
+ * @returns {Promise<GenerateObjectResult<unknown>>} - A promise that resolves to generated objects.
+ */
+async function handleDeepSeek({
+    model,
+    apiKey,
+    schema,
+    schemaName,
+    schemaDescription,
+    mode,
+    modelOptions,
+}: ProviderOptions): Promise<GenerateObjectResult<unknown>> {
+    const openai = createOpenAI({ apiKey, baseURL: models.deepseek.endpoint });
+    return await aiGenerateObject({
+        model: openai.languageModel(model),
+        schema,
+        schemaName,
+        schemaDescription,
+        mode,
+        ...modelOptions,
+    });
+}
+
 // Add type definition for Together AI response
 interface TogetherAIImageResponse {
     data: Array<{

packages/core/src/models.ts

@@ -514,6 +514,22 @@ export const models: Models = {
             [ModelClass.IMAGE]: settings.LIVEPEER_IMAGE_MODEL || "ByteDance/SDXL-Lightning",
         },
     },
+    [ModelProviderName.DEEPSEEK]: {
+        endpoint: settings.DEEPSEEK_API_URL || "https://api.deepseek.com",
+        settings: {
+            stop: [],
+            maxInputTokens: 128000,
+            maxOutputTokens: 8192,
+            frequency_penalty: 0.0,
+            presence_penalty: 0.0,
+            temperature: 0.7,
+        },
+        model: {
+            [ModelClass.SMALL]: settings.SMALL_DEEPSEEK_MODEL || "deepseek-chat",
+            [ModelClass.MEDIUM]: settings.MEDIUM_DEEPSEEK_MODEL || "deepseek-chat",
+            [ModelClass.LARGE]: settings.LARGE_DEEPSEEK_MODEL || "deepseek-chat",
+        },
+    },
 };
 
 export function getModel(provider: ModelProviderName, type: ModelClass) {

packages/core/src/types.ts

@@ -213,6 +213,7 @@ export type Models = {
     [ModelProviderName.VENICE]: Model;
     [ModelProviderName.AKASH_CHAT_API]: Model;
     [ModelProviderName.LIVEPEER]: Model;
+    [ModelProviderName.DEEPSEEK]: Model;
 };
 
 /**
@@ -243,6 +244,7 @@ export enum ModelProviderName {
     VENICE = "venice",
     AKASH_CHAT_API = "akash_chat_api",
     LIVEPEER = "livepeer",
+    DEEPSEEK = "deepseek",
 }
 
 /**