bge-base-en-v1.5 and Nemotron 3 Nano 30B A3B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
bge-base-en-v1.5, from baai, has a 512-token context window and is priced at $0.005/M tokens on OpenRouter.
Nemotron 3 Nano 30B A3B, from Nvidia, has a 262,144-token context window and is priced at $0.05/M tokens input, $0.20/M tokens output on OpenRouter.