OpenAI Setup

OpenAI provides the GPT family of models, offering strong general-purpose capabilities with broad tool support.

Getting Your API Key

  1. Go to platform.openai.com
  2. Sign up or log in to your OpenAI account
  3. Navigate to API Keys in the left sidebar
  4. Click Create new secret key
  5. Give it a name (e.g., “Lenno Agent”)
  6. Copy the key – it starts with sk-

Important: Store your key securely. OpenAI will not show it again after creation.

Adding to Lenno

  1. Go to your agent’s Provider tab
  2. Select OpenAI from the provider list
  3. Paste your API key
  4. Choose a model
  5. Click Save

Available Models

Model Context Best For Cost
gpt-4o 128K tokens Most capable, multimodal $$
gpt-4o-mini 128K tokens Fast, cost-effective $
o1 128K tokens Advanced reasoning $$$
o1-mini 128K tokens Fast reasoning $$

Pricing Notes

OpenAI charges per input and output token. Check openai.com/pricing for current rates. Usage limits and rate limits depend on your account tier.