bge-large-en-v1.5 and Text Embedding 3 Large are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
bge-large-en-v1.5, from baai, has a 512-token context window and is priced at $0.01/M tokens on OpenRouter.
Text Embedding 3 Large, from OpenAI, has a 8,192-token context window and is priced at $0.13/M tokens on OpenRouter.