# OpenAI API Key (required)
OPENAI_API_KEY=your-openai-api-key-here

# Optional: Use a different model provider
# ANTHROPIC_API_KEY=your-anthropic-key-here
# GOOGLE_API_KEY=your-google-key-here

# Optional: Change default model
# DEFAULT_MODEL=gpt-4o-mini

# Optional: Change default framework
# DEFAULT_FRAMEWORK=tinyagent