Text Embedding 3 Large and Riverflow V2 Fast are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Text Embedding 3 Large, from OpenAI, has a 8,192-token context window and is priced at $0.13/M tokens on OpenRouter.
Riverflow V2 Fast, from Sourceful, has a 8,192-token context window and is priced from $0.02/image on OpenRouter.