E5-Base-v2 and gpt-oss-safeguard-20b are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
E5-Base-v2, from intfloat, has a 512-token context window and is priced at $0.005/M tokens on OpenRouter.
gpt-oss-safeguard-20b, from OpenAI, has a 131,072-token context window and is priced at $0.075/M tokens input, $0.30/M tokens output on OpenRouter.