Supported image gen. models

• OpenAI
  • dall-e-2
  • dall-e-3
  • gpt-image-1
• Azure OpenAI
• Grok
  • grok-2-image
• Luma
  • photon-1 (default)
  • photon-flash-1
• Hive
  • black-forest-labs/flux-schnell