Increase /image/multi-edit input limit for GPT Image 2 and Nano Banana 2

Venice currently caps /image/multi-edit at 3 image inputs for gpt-image-2-edit and nano-banana- 2-edit. Please raise the image-input limit to match upstream model capabilities where available.

OpenAI’s direct GPT Image API supports up to 16 image references for GPT image edit requests. Google’s Gemini API for Nano Banana 2 supports multi-image prompting through Gemini’s content parts, with much higher general image-input limits, and provider wrappers expose Nano Banana 2 editing with up to 14 references.

A 3-image cap blocks practical workflows like character sheet + costume + prop + environment + style reference, product bundles, storyboard panels, and multi-reference consistency testing. A target of at least 16 inputs for GPT Image 2 and 14+ for Nano Banana 2 would better expose the underlying model capability.