diff --git a/README.md b/README.md
index caa4462..8380747 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ import (
 func main() {
   co := cohere.CreateClient("YOUR_API_KEY")
 
-  res, err := co.Generate("baseline-seal", cohere.GenerateOptions{
+  res, err := co.Generate("large", cohere.GenerateOptions{
     Prompt:            "co:here",
     MaxTokens:         10,
     Temperature:       0.75,
@@ -45,6 +45,22 @@ func main() {
 
 A more complete example of `Generate` can be found [here](https://github.com/cohere-ai/cohere-go/blob/main/example/main.go) and example usage of other endpoints can be found [here](https://github.com/cohere-ai/cohere-go/blob/main/client_test.go).
 
+## Versioning
+To use the SDK with a specific API version, you can modify the client with the desired version as such:
+
+```go
+package main
+
+import (
+  "github.com/cohere-ai/cohere-go"
+)
+
+func main() {
+  co := cohere.CreateClient("YOUR_API_KEY")
+  co.Version = "2021-11-08"
+}
+```
+
 ## Endpoints
 For a full breakdown of endpoints and arguments, please consult the [Cohere Docs](https://docs.cohere.ai/).
 
@@ -57,7 +73,7 @@ Cohere Endpoint | Function
 /likelihood | co.Likelihood()
 
 ## Models
-To view an up-to-date list of available models please consult the [Cohere CLI](https://docs.cohere.ai/command/). To get started try out `baseline-shrimp` or `baseline-seal`.
+To view an up-to-date list of available models please consult the [Cohere CLI](https://docs.cohere.ai/command/). To get started try out `large`.
 
 ## Responses
 All of the endpoint functions will return a Cohere object corresponding to the endpoint (e.g. for generation, it would be `GenerateResponse`). The responses can be found as fields on the struct (e.g. generations would be `GenerateResponse.Generations`). The names of these fields and a detailed breakdown of the response body can be found in the [Cohere Docs](https://docs.cohere.ai/).
diff --git a/client_test.go b/client_test.go
index 71e2022..0e3346f 100644
--- a/client_test.go
+++ b/client_test.go
@@ -18,7 +18,7 @@ func init() {
 func TestErrors(t *testing.T) {
 	t.Run("Invalid api key", func(t *testing.T) {
 		co := CreateClient("")
-		_, err := co.Generate("baseline-shrimp", GenerateOptions{
+		_, err := co.Generate("small", GenerateOptions{
 			Prompt:      "",
 			MaxTokens:   10,
 			Temperature: 0.75,
@@ -35,7 +35,7 @@ func TestGenerate(t *testing.T) {
 	co := CreateClient(apiKey)
 
 	t.Run("Generate basic", func(t *testing.T) {
-		_, err := co.Generate("baseline-shark", GenerateOptions{
+		_, err := co.Generate("medium", GenerateOptions{
 			Prompt:      "Hello my name is",
 			MaxTokens:   10,
 			Temperature: 0.75,
@@ -47,7 +47,7 @@ func TestGenerate(t *testing.T) {
 
 	t.Run("Generate multi", func(t *testing.T) {
 		num := 4
-		res, err := co.Generate("baseline-shark", GenerateOptions{
+		res, err := co.Generate("medium", GenerateOptions{
 			Prompt:         "What is your",
 			MaxTokens:      10,
 			Temperature:    0.75,
@@ -65,7 +65,7 @@ func TestSimilarity(t *testing.T) {
 	co := CreateClient(apiKey)
 
 	t.Run("Similarity", func(t *testing.T) {
-		_, err := co.Similarity("baseline-shrimp", SimilarityOptions{
+		_, err := co.Similarity("small", SimilarityOptions{
 			Anchor:  "hi how are you doing today?",
 			Targets: []string{"greeting", "request for assistance", "asking a question"},
 		})
@@ -79,7 +79,7 @@ func TestChooseBest(t *testing.T) {
 	co := CreateClient(apiKey)
 
 	t.Run("ChooseBest", func(t *testing.T) {
-		_, err := co.ChooseBest("baseline-otter", ChooseBestOptions{
+		_, err := co.ChooseBest("small", ChooseBestOptions{
 			Query:   "Carol picked up a book and walked to the kitchen. She set it down, picked up her glasses and left. This is in the kitchen now: ",
 			Options: []string{"book", "glasses", "dog"},
 			Mode:    AppendOption,
@@ -97,7 +97,7 @@ func TestEmbed(t *testing.T) {
 	t.Run("Embed", func(t *testing.T) {
 		texts := []string{"hello", "goodbye"}
 
-		_, err := co.Embed("baseline-shrimp", texts)
+		_, err := co.Embed("small", texts)
 		if err != nil {
 			t.Errorf("expected result, got error: %s", err.Error())
 		}
@@ -110,7 +110,7 @@ func TestLikelihood(t *testing.T) {
 	t.Run("Likelihood", func(t *testing.T) {
 		text := "so I crept up the basement stairs and BOOOO!"
 
-		_, err := co.Likelihood("baseline-orca", text)
+		_, err := co.Likelihood("large", text)
 		if err != nil {
 			t.Errorf("expected result, got error: %s", err.Error())
 		}
diff --git a/example/main.go b/example/main.go
index 9d1a5c6..8e37c69 100644
--- a/example/main.go
+++ b/example/main.go
@@ -17,7 +17,7 @@ func main() {
 	co := cohere.CreateClient(apiKey)
 
 	prompt := "What is your"
-	res, err := co.Generate("baseline-seal", cohere.GenerateOptions{
+	res, err := co.Generate("medium", cohere.GenerateOptions{
 		Prompt:            prompt,
 		MaxTokens:         20,
 		Temperature:       1,