OpenAI

openai is the OpenAI chat model provider. It uses the OPENAI_API_... environment variables.

1. Upgrade your account to get access to the models. You will get 404s if you do not have a paying account.

2. Create a new secret key from the OpenAI API Keys portal.

3. Update the .env file with the secret key.

   .env

   OPENAI_API_KEY=sk_...

4. Find the model you want to use from the OpenAI API Reference or the OpenAI Chat Playground.

   

5. Set the model field in script to the model you want to use.

   script({
       model: "openai:gpt-4o",
       ...
   })

Default Model Configuration

Use GENAISCRIPT_MODEL_LARGE and GENAISCRIPT_MODEL_SMALL in your .env file to set the default model and small model.

GENAISCRIPT_MODEL_LARGE=openai:gpt-4o
GENAISCRIPT_MODEL_SMALL=openai:gpt-4o-mini

Logging

You can enable the genaiscript:openai and genaiscript:openai:msg logging namespaces for more information about the requests and responses:

Aliases

The following model aliases are attempted by default in GenAIScript.

Alias	Model identifier
large	gpt-4.1
small	gpt-4.1-mini
tiny	gpt-4.1-nano
vision	gpt-4.1
vision_small	gpt-4.1-mini
embeddings	text-embedding-3-small
reasoning	o1
reasoning_small	o3-mini
transcription	whisper-1
speech	tts-1
image	gpt-image-1
intent	gpt-4.1-mini