GLM 5.3 and Llama Guard 4 12B are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
GLM 5.3, from Z.ai, has a 1,048,576-token context window and is priced at $1.40/M tokens input, $4.40/M tokens output on OpenRouter.
Llama Guard 4 12B, from Meta Llama, has a 1,048,576-token context window and is priced at $0.18/M tokens input, $0.18/M tokens output on OpenRouter.