baoyu-skills/skills/baoyu-image-gen/references/providers/openrouter.md

OpenRouter

Read when the user picks --provider openrouter. Default model is google/gemini-3.1-flash-image.

Common Models

Use full OpenRouter model IDs:

• google/gemini-3.1-flash-image (recommended — supports image output and reference-image workflows)
• google/gemini-2.5-flash-image-preview
• black-forest-labs/flux.2-pro
• Any other OpenRouter image-capable model ID

Behavior Notes

• OpenRouter image generation uses /chat/completions, not the OpenAI /images endpoints
• --ref requires a multimodal model that supports both image input and image output
• --imageSize maps to imageGenerationOptions.size
• --size <WxH> is converted to the nearest supported OpenRouter size, and the aspect ratio is inferred when possible