Llama Guard 4 12B and Kimi K3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
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.
Kimi K3, from moonshotai, has a 1,048,576-token context window and is priced at $2.60/M tokens input, $13/M tokens output on OpenRouter.