diff --git a/api_integration_test.go b/api_integration_test.go
index 736040c50..f34685188 100644
--- a/api_integration_test.go
+++ b/api_integration_test.go
@@ -26,7 +26,7 @@ func TestAPI(t *testing.T) {
 	_, err = c.ListEngines(ctx)
 	checks.NoError(t, err, "ListEngines error")
 
-	_, err = c.GetEngine(ctx, "davinci")
+	_, err = c.GetEngine(ctx, openai.GPT3Davinci002)
 	checks.NoError(t, err, "GetEngine error")
 
 	fileRes, err := c.ListFiles(ctx)
@@ -42,7 +42,7 @@ func TestAPI(t *testing.T) {
 			"The food was delicious and the waiter",
 			"Other examples of embedding request",
 		},
-		Model: openai.AdaSearchQuery,
+		Model: openai.AdaEmbeddingV2,
 	}
 	_, err = c.CreateEmbeddings(ctx, embeddingReq)
 	checks.NoError(t, err, "Embedding error")
@@ -77,31 +77,6 @@ func TestAPI(t *testing.T) {
 	)
 	checks.NoError(t, err, "CreateChatCompletion (with name) returned error")
 
-	stream, err := c.CreateCompletionStream(ctx, openai.CompletionRequest{
-		Prompt:    "Ex falso quodlibet",
-		Model:     openai.GPT3Ada,
-		MaxTokens: 5,
-		Stream:    true,
-	})
-	checks.NoError(t, err, "CreateCompletionStream returned error")
-	defer stream.Close()
-
-	counter := 0
-	for {
-		_, err = stream.Recv()
-		if err != nil {
-			if errors.Is(err, io.EOF) {
-				break
-			}
-			t.Errorf("Stream error: %v", err)
-		} else {
-			counter++
-		}
-	}
-	if counter == 0 {
-		t.Error("Stream did not return any responses")
-	}
-
 	_, err = c.CreateChatCompletion(
 		context.Background(),
 		openai.ChatCompletionRequest{
@@ -134,6 +109,41 @@ func TestAPI(t *testing.T) {
 	checks.NoError(t, err, "CreateChatCompletion (with functions) returned error")
 }
 
+func TestCompletionStream(t *testing.T) {
+	apiToken := os.Getenv("OPENAI_TOKEN")
+	if apiToken == "" {
+		t.Skip("Skipping testing against production OpenAI API. Set OPENAI_TOKEN environment variable to enable it.")
+	}
+
+	c := openai.NewClient(apiToken)
+	ctx := context.Background()
+
+	stream, err := c.CreateCompletionStream(ctx, openai.CompletionRequest{
+		Prompt:    "Ex falso quodlibet",
+		Model:     openai.GPT3Babbage002,
+		MaxTokens: 5,
+		Stream:    true,
+	})
+	checks.NoError(t, err, "CreateCompletionStream returned error")
+	defer stream.Close()
+
+	counter := 0
+	for {
+		_, err = stream.Recv()
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				break
+			}
+			t.Errorf("Stream error: %v", err)
+		} else {
+			counter++
+		}
+	}
+	if counter == 0 {
+		t.Error("Stream did not return any responses")
+	}
+}
+
 func TestAPIError(t *testing.T) {
 	apiToken := os.Getenv("OPENAI_TOKEN")
 	if apiToken == "" {
diff --git a/completion.go b/completion.go
index ced8e0606..024f09b14 100644
--- a/completion.go
+++ b/completion.go
@@ -39,30 +39,33 @@ const (
 	GPT3Dot5Turbo16K0613  = "gpt-3.5-turbo-16k-0613"
 	GPT3Dot5Turbo         = "gpt-3.5-turbo"
 	GPT3Dot5TurboInstruct = "gpt-3.5-turbo-instruct"
-	// Deprecated: Will be shut down on January 04, 2024. Use gpt-3.5-turbo-instruct instead.
+	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
 	GPT3TextDavinci003 = "text-davinci-003"
-	// Deprecated: Will be shut down on January 04, 2024. Use gpt-3.5-turbo-instruct instead.
+	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
 	GPT3TextDavinci002 = "text-davinci-002"
-	// Deprecated: Will be shut down on January 04, 2024. Use gpt-3.5-turbo-instruct instead.
+	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
 	GPT3TextCurie001 = "text-curie-001"
-	// Deprecated: Will be shut down on January 04, 2024. Use gpt-3.5-turbo-instruct instead.
+	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
 	GPT3TextBabbage001 = "text-babbage-001"
-	// Deprecated: Will be shut down on January 04, 2024. Use gpt-3.5-turbo-instruct instead.
+	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
 	GPT3TextAda001 = "text-ada-001"
-	// Deprecated: Will be shut down on January 04, 2024. Use gpt-3.5-turbo-instruct instead.
+	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
 	GPT3TextDavinci001 = "text-davinci-001"
-	// Deprecated: Will be shut down on January 04, 2024. Use gpt-3.5-turbo-instruct instead.
+	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
 	GPT3DavinciInstructBeta = "davinci-instruct-beta"
-	GPT3Davinci             = "davinci"
-	GPT3Davinci002          = "davinci-002"
-	// Deprecated: Will be shut down on January 04, 2024. Use gpt-3.5-turbo-instruct instead.
+	// Deprecated: Model is shutdown. Use davinci-002 instead.
+	GPT3Davinci    = "davinci"
+	GPT3Davinci002 = "davinci-002"
+	// Deprecated: Model is shutdown. Use gpt-3.5-turbo-instruct instead.
 	GPT3CurieInstructBeta = "curie-instruct-beta"
 	GPT3Curie             = "curie"
 	GPT3Curie002          = "curie-002"
-	GPT3Ada               = "ada"
-	GPT3Ada002            = "ada-002"
-	GPT3Babbage           = "babbage"
-	GPT3Babbage002        = "babbage-002"
+	// Deprecated: Model is shutdown. Use babbage-002 instead.
+	GPT3Ada    = "ada"
+	GPT3Ada002 = "ada-002"
+	// Deprecated: Model is shutdown. Use babbage-002 instead.
+	GPT3Babbage    = "babbage"
+	GPT3Babbage002 = "babbage-002"
 )
 
 // Codex Defines the models provided by OpenAI.
diff --git a/embeddings.go b/embeddings.go
index c5633a313..b513ba6a7 100644
--- a/embeddings.go
+++ b/embeddings.go
@@ -16,7 +16,7 @@ var ErrVectorLengthMismatch = errors.New("vector length mismatch")
 type EmbeddingModel string
 
 const (
-	// Deprecated: The following block will be shut down on January 04, 2024. Use text-embedding-ada-002 instead.
+	// Deprecated: The following block is shut down. Use text-embedding-ada-002 instead.
 	AdaSimilarity         EmbeddingModel = "text-similarity-ada-001"
 	BabbageSimilarity     EmbeddingModel = "text-similarity-babbage-001"
 	CurieSimilarity       EmbeddingModel = "text-similarity-curie-001"
diff --git a/internal/test/checks/checks.go b/internal/test/checks/checks.go
index 713369157..6bd0964c6 100644
--- a/internal/test/checks/checks.go
+++ b/internal/test/checks/checks.go
@@ -12,6 +12,13 @@ func NoError(t *testing.T, err error, message ...string) {
 	}
 }
 
+func NoErrorF(t *testing.T, err error, message ...string) {
+	t.Helper()
+	if err != nil {
+		t.Fatal(err, message)
+	}
+}
+
 func HasError(t *testing.T, err error, message ...string) {
 	t.Helper()
 	if err == nil {