Gemini Embedding 2 and all-MiniLM-L12-v2 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Gemini Embedding 2, from Google, has a 8,192-token context window and is priced at $0.20/M tokens on OpenRouter.
all-MiniLM-L12-v2, from sentence-transformers, has a 512-token context window and is priced at $0.005/M tokens on OpenRouter.