update readme

README.md

@@ -50,13 +50,18 @@ 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
 
 Usage:
   chatgpt [file] [flags]
@@ -70,6 +75,7 @@ Flags:
       --freq float        set the Frequency Penalty parameter
   -h, --help              help for chatgpt
   -i, --interactive       start an interactive session with ChatGPT
+  -m, --model string      select the model to use with -q or -e (default "text-davinci-003")
       --pres float        set the Presence Penalty parameter
   -p, --pretext string    pretext to add to ChatGPT input, use 'list' or 'view:<name>' to inspect predefined, '<name>' to use a pretext, or otherwise supply any custom text
   -q, --question string   ask a single question and print the response back
@@ -106,6 +112,7 @@ 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
 
 >
 ```