Add support for new text-embedding-3-small and text-embedding-3-large embedding models

Sources/CleverBird/chat/ChatModel.swift

@@ -19,17 +19,22 @@ public enum ChatModel: Codable {
 
     public func encode(to encoder: Encoder) throws {
         var container = encoder.singleValueContainer()
-        let modelString: String
+        let modelString = self.description
+
+        try container.encode(modelString)
+    }
+}
 
+extension ChatModel: CustomStringConvertible {
+    public var description: String {
         switch self {
         case .gpt35Turbo:
-            modelString = "gpt-3.5-turbo"
+            return "gpt-3.5-turbo"
         case .gpt4:
-            modelString = "gpt-4"
-        case .specific(let specificString):
-            modelString = specificString
+            return "gpt-4"
+        case .specific(let string):
+            return string
         }
-
-        try container.encode(modelString)
+
     }
 }

Sources/CleverBird/embeddings/EmbeddedDocumentStore.swift

@@ -24,7 +24,7 @@ public class EmbeddedDocumentStore {
     private var similarityMetric: SimilarityMetric
 
     public init(connection: OpenAIAPIConnection,
-                model: EmbeddingModel = .textEmbeddingAda002,
+                model: EmbeddingModel = .textEmbedding3Small,
                 user: String? = nil,
                 similarityMetric: SimilarityMetric = .cosine) {
         self.connection = connection

Sources/CleverBird/embeddings/EmbeddingModel.swift

@@ -1,6 +1,8 @@
 //  Created by B.T. Franklin on 7/25/23
 
 public enum EmbeddingModel: Codable {
+    case textEmbedding3Small
+    case textEmbedding3Large
     case textEmbeddingAda002
     case specific(String)
 
@@ -9,6 +11,10 @@ public enum EmbeddingModel: Codable {
         let modelString = try container.decode(String.self)
 
         switch modelString {
+        case "text-embedding-3-small":
+            self = .textEmbedding3Small
+        case "text-embedding-3-large":
+            self = .textEmbedding3Large
         case "text-embedding-ada-002":
             self = .textEmbeddingAda002
         default:
@@ -18,15 +24,23 @@ public enum EmbeddingModel: Codable {
 
     public func encode(to encoder: Encoder) throws {
         var container = encoder.singleValueContainer()
-        let modelString: String
+        let modelString = self.description
 
+        try container.encode(modelString)
+    }
+}
+
+extension EmbeddingModel: CustomStringConvertible {
+    public var description: String {
         switch self {
+        case .textEmbedding3Small:
+            return "text-embedding-3-small"
+        case .textEmbedding3Large:
+            return "text-embedding-3-large"
         case .textEmbeddingAda002:
-            modelString = "text-embedding-ada-002"
-        case .specific(let specificString):
-            modelString = specificString
+            return "text-embedding-ada-002"
+        case .specific(let string):
+            return string
         }
-
-        try container.encode(modelString)
     }
 }

Sources/CleverBird/embeddings/EmbeddingRequestParameters.swift

@@ -3,13 +3,16 @@
 public struct EmbeddingRequestParameters: Encodable {
     public let model: EmbeddingModel
     public let input: [String]
+    public let dimensions: Int?
     public let user: String?
 
     public init(model: EmbeddingModel,
                 input: [String],
+                dimensions: Int? = nil,
                 user: String? = nil) {
         self.model = model
         self.input = input
+        self.dimensions = dimensions
         self.user = user
     }
 }