Six providers, one API
The model field picks the provider: Imagen (flash, pro, imagen4-fast, imagen4), OpenAI (gpt-image-2), FLUX (flux-2-klein-4b/9b, flux-2-pro, flux-2-max), Stability (stable-core, stable-sd35-*, stable-ultra), Ideogram (ideogram-4-turbo/-4/-4-quality) or Leonardo (leonardo-lucid-*, leonardo-phoenix).