diff --git a/go.mod b/go.mod
index 07c0f4e..8edde2c 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/verdverm/chatgpt
 go 1.18
 
 require (
-	github.com/sashabaranov/go-gpt3 v1.0.1
+	github.com/sashabaranov/go-openai v1.5.0
 	github.com/spf13/cobra v1.6.1
 )
 
diff --git a/go.sum b/go.sum
index 78ec907..1774fa5 100644
--- a/go.sum
+++ b/go.sum
@@ -2,8 +2,8 @@ github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46t
 github.com/inconshreveable/mousetrap v1.0.1 h1:U3uMjPSQEBMNp1lFxmllqCPM6P5u/Xq7Pgzkat/bFNc=
 github.com/inconshreveable/mousetrap v1.0.1/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/sashabaranov/go-gpt3 v1.0.1 h1:KHwY4uroFlX1qI1Hui7d31ZI6uzbNGL9zAkh1FkfhuM=
-github.com/sashabaranov/go-gpt3 v1.0.1/go.mod h1:BIZdbwdzxZbCrcKGMGH6u2eyGe1xFuX9Anmh3tCP8lQ=
+github.com/sashabaranov/go-openai v1.5.0 h1:4Gr/7g/KtVzW0ddn7TC2aUlyzvhZBIM+qRZ6Ae2kMa0=
+github.com/sashabaranov/go-openai v1.5.0/go.mod h1:lj5b/K+zjTSFxVLijLSTDZuP7adOgerWeFyZLUhAKRg=
 github.com/spf13/cobra v1.6.1 h1:o94oiPyS4KD1mPy2fmcYYHHfCxLqYjJOhGsCHFZtEzA=
 github.com/spf13/cobra v1.6.1/go.mod h1:IOw/AERYS7UzyrGinqmz6HLUo219MORXGxhbaJUqzrY=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
diff --git a/main.go b/main.go
index 23c4da4..929be47 100644
--- a/main.go
+++ b/main.go
@@ -11,7 +11,7 @@ import (
 	"strconv"
 	"strings"
 
-	gpt3 "github.com/sashabaranov/go-gpt3"
+	gpt3 "github.com/sashabaranov/go-openai"
 	"github.com/spf13/cobra"
 )
 
@@ -52,14 +52,18 @@ Examples:
   chatgpt -c ...
 
   # model options (https://platform.openai.com/docs/api-reference/completions/create)
-  chatgpt -T 4096   # set max tokens in reponse  [0,4096]
-  chatgpt -C        # clean whitespace before sending
-  chatgpt -E        # echo back the prompt, useful for vim coding
-  chatgpt --temp    # set the temperature param  [0.0,2.0]
-  chatgpt --topp    # set the TopP param         [0.0,1.0]
-  chatgpt --pres    # set the Presence Penalty   [-2.0,2.0]
-  chatgpt --freq    # set the Frequency Penalty  [-2.0,2.0]
-
+  chatgpt -T 4096    # set max tokens in reponse  [0,4096]
+  chatgpt -C         # clean whitespace before sending
+  chatgpt -E         # echo back the prompt, useful for vim coding
+  chatgpt --temp     # set the temperature param  [0.0,2.0]
+  chatgpt --topp     # set the TopP param         [0.0,1.0]
+  chatgpt --pres     # set the Presence Penalty   [-2.0,2.0]
+  chatgpt --freq     # set the Frequency Penalty  [-2.0,2.0]
+
+  # change model selection, available models are listed here:
+  # https://pkg.go.dev/github.com/sashabaranov/go-openai#Client.ListModels
+  chatgpt -m text-davinci-003  # set the model to text-davinci-003 (the default)
+  chatgpt -m text-ada-001      # set the model to text-ada-001
 
 `
 
@@ -72,6 +76,7 @@ var interactiveHelp = `starting interactive session...
   'topp'  set the TopP param         [0.0,1.0]
   'pres'  set the Presence Penalty   [-2.0,2.0]
   'freq'  set the Frequency Penalty  [-2.0,2.0]
+  'model' to change the selected model
 `
 
 //go:embed pretexts/*
@@ -99,36 +104,6 @@ var PresencePenalty float64
 var FrequencyPenalty float64
 var Model string
 
-// checkModel verifies that the selected mode id is one that go-gpt3 knows
-// about, producing an error if not.
-//
-// TODO: in future, this could probably leverage gpt3.Client.ListModels() to
-// support the user's fine-tuned models.
-func checkModel(m string) error {
-	knownModels := []string{
-		gpt3.GPT3TextDavinci003,
-		gpt3.GPT3TextDavinci002,
-		gpt3.GPT3TextCurie001,
-		gpt3.GPT3TextBabbage001,
-		gpt3.GPT3TextAda001,
-		gpt3.GPT3TextDavinci001,
-		gpt3.GPT3DavinciInstructBeta,
-		gpt3.GPT3Davinci,
-		gpt3.GPT3CurieInstructBeta,
-		gpt3.GPT3Curie,
-		gpt3.GPT3Ada,
-		gpt3.GPT3Babbage,
-	}
-
-	for _, v := range knownModels {
-		if m == v {
-			return nil
-		}
-	}
-
-	return fmt.Errorf("unknown model '%s', expected one of: %s", m, strings.Join(knownModels, ", "))
-}
-
 func GetCompletionResponse(client *gpt3.Client, ctx context.Context, question string) ([]string, error) {
 	if CleanPrompt {
 		question = strings.ReplaceAll(question, "\n", " ")
@@ -139,11 +114,6 @@ func GetCompletionResponse(client *gpt3.Client, ctx context.Context, question st
 		question += "\n"
 	}
 
-	err := checkModel(Model)
-	if err != nil {
-		return nil, err
-	}
-
 	req := gpt3.CompletionRequest{
 		Model:            Model,
 		MaxTokens:        MaxTokens,
@@ -173,11 +143,6 @@ func GetEditsResponse(client *gpt3.Client, ctx context.Context, input, instructi
 		input = strings.ReplaceAll(input, "  ", " ")
 	}
 
-	err := checkModel(Model)
-	if err != nil {
-		return nil, err
-	}
-
 	m := Model
 	req := gpt3.EditsRequest{
 		Model:       &m,
@@ -441,6 +406,16 @@ func RunPrompt(client *gpt3.Client) error {
 			}
 			continue
 
+		case "model":
+			if len(parts) == 1 {
+				fmt.Println("model is set to", Model)
+				continue
+			}
+
+			Model = parts[1]
+			fmt.Println("model is now", Model)
+			continue
+
 		case "tokens":
 			if len(parts) == 1 {
 				fmt.Println("tokens is set to", MaxTokens)