paraphrase-MiniLM-L6-v2 and GLM 4.6 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
paraphrase-MiniLM-L6-v2, from sentence-transformers, has a 512-token context window and is priced at $0.005/M tokens on OpenRouter.
GLM 4.6, from Z.ai, has a 204,800-token context window and is priced at $0.43/M tokens input, $1.75/M tokens output on OpenRouter.