Nano Banana (Gemini 2.5 Flash Image) and Text Embedding Ada 002 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Nano Banana (Gemini 2.5 Flash Image), from Google, has a 32,768-token context window and is priced at $0.30/M tokens input, $30/M tokens output on OpenRouter.
Text Embedding Ada 002, from OpenAI, has a 8,192-token context window and is priced at $0.10/M tokens on OpenRouter.