diff --git a/.github/workflows/swift.yml b/.github/workflows/swift.yml
index f8b34ed..bdbfb02 100644
--- a/.github/workflows/swift.yml
+++ b/.github/workflows/swift.yml
@@ -5,9 +5,9 @@ name: Swift
 
 on:
   push:
-    branches: [ "main" ]
+    branches: [ "main", "local" ]
   pull_request:
-    branches: [ "main" ]
+    branches: [ "main", "local" ]
 
 jobs:
   build:
diff --git a/Package.resolved b/Package.resolved
index 47d5427..2215a3a 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -72,6 +72,15 @@
         "version" : "4.2.2"
       }
     },
+    {
+      "identity" : "llmfarm_core.swift",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/buhe/llmfarm_core.swift",
+      "state" : {
+        "branch" : "langchain",
+        "revision" : "927d670751bc8aebbc5eb845afd36fe1eeef4f5a"
+      }
+    },
     {
       "identity" : "openai-kit",
       "kind" : "remoteSourceControl",
diff --git a/Package.swift b/Package.swift
index f90bac0..26fa2e3 100644
--- a/Package.swift
+++ b/Package.swift
@@ -26,6 +26,7 @@ let package = Package(
         .package(url: "https://github.com/juyan/swift-filestore", .upToNextMajor(from: "0.5.0")),
         .package(url: "https://github.com/buhe/similarity-search-kit", from: "0.0.16"),
         .package(url: "https://github.com/google/generative-ai-swift", .upToNextMajor(from: "0.4.4")),
+        .package(url: "https://github.com/buhe/llmfarm_core.swift", .branch("langchain")),
         .package(url: "https://github.com/buhe/SwiftyNotion", .upToNextMajor(from: "0.1.3")),
         .package(url: "https://github.com/nmdias/FeedKit", .upToNextMajor(from: "9.1.2")),
     ],
@@ -45,6 +46,7 @@ let package = Package(
 //                .product(name: "SimilaritySearchKitDistilbert", package: "similarity-search-kit", condition: .when(platforms: [.macOS, .iOS, .visionOS])),
                 .product(name: "GoogleGenerativeAI", package: "generative-ai-swift"),
                 .product(name: "SwiftyNotion", package: "SwiftyNotion"),
+                .product(name: "llmfarm_core", package: "llmfarm_core.swift"),
                 .product(name: "FeedKit", package: "FeedKit"),
             ]
         
diff --git a/Sources/LangChain/llms/Local.swift b/Sources/LangChain/llms/Local.swift
index 8ef6fab..7cec3e1 100644
--- a/Sources/LangChain/llms/Local.swift
+++ b/Sources/LangChain/llms/Local.swift
@@ -1,46 +1,42 @@
-////
-////  File.swift
-////  
-////
-////  Created by 顾艳华 on 1/22/24.
-////
-//import llmfarm_core
-//import Foundation
-//
-//public class Local: LLM {
-//    let modelPath: String
-//    let useMetal: Bool
-//    let inference: ModelInference
-//    
-//    public init(inference: ModelInference, modelPath: String, useMetal: Bool = false, callbacks: [BaseCallbackHandler] = [], cache: BaseCache? = nil) {
-//        self.inference = inference
-//        self.modelPath = modelPath
-//        self.useMetal = useMetal
-//        super.init(callbacks: callbacks, cache: cache)
-//    }
-//    public override func _send(text: String, stops: [String] = []) async throws -> LLMResult {
-//        let ai = AI(_modelPath: self.modelPath, _chatName: "chat")
-//        var params:ModelAndContextParams = .default
-//        params.use_metal = useMetal
-//        params.promptFormat = .Custom
-//        params.custom_prompt_format = "{{prompt}}"
-//        try? ai.loadModel(inference, contextParams: params)
-//        let output = try? ai.model.predict(text, mainCallback)
-////        print("🚗\(output)")
-//        total_output = 0
-//        return LLMResult(llm_output: output)
-//    }
-//    
-//    let maxOutputLength = 256
-//    var total_output = 0
-//
-//    func mainCallback(_ str: String, _ time: Double) -> Bool {
-//        print("\(str)",terminator: "")
-//        total_output += str.count
-//        if(total_output>maxOutputLength){
-//            return true
-//        }
-//        return false
-//    }
-//}
-//
+import llmfarm_core
+import Foundation
+
+public class Local: LLM {
+    let modelPath: String
+    let useMetal: Bool
+    let inference: ModelInference
+    var params: ModelAndContextParams
+    var sampleParams: ModelSampleParams
+    
+    public init(inference: ModelInference, modelPath: String, useMetal: Bool = false,params: ModelAndContextParams = .default, sampleParams: ModelSampleParams = .default, callbacks: [BaseCallbackHandler] = [], cache: BaseCache? = nil) {
+        self.inference = inference
+        self.modelPath = modelPath
+        self.useMetal = useMetal
+        self.params = params
+        self.sampleParams = sampleParams
+        super.init(callbacks: callbacks, cache: cache)
+    }
+    public override func _send(text: String, stops: [String] = []) async throws -> LLMResult {
+        let ai = AI(_modelPath: self.modelPath, _chatName: "chat")
+        self.params.use_metal = useMetal
+        
+        let _ = try? ai.loadModel(inference, contextParams: self.params)
+        ai.model.sampleParams = self.sampleParams
+        let output = try? ai.model.predict(text, mainCallback)
+//        print("🚗\(output)")
+        total_output = 0
+        return LLMResult(llm_output: output)
+    }
+    
+    let maxOutputLength = 256
+    var total_output = 0
+
+    func mainCallback(_ str: String, _ time: Double) -> Bool {
+        print("\(str)",terminator: "")
+        total_output += str.count
+        if(total_output>maxOutputLength){
+            return true
+        }
+        return false
+    }
+}