Ling-3.0-flash and Nemotron 3 Ultra are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Ling-3.0-flash, from inclusionai, has a 262,144-token context window and is priced at $0.021/M tokens input, $0.063/M tokens output on OpenRouter.
Nemotron 3 Ultra, from Nvidia, has a 512,288-token context window and is priced at $0.50/M tokens input, $2.20/M tokens output on OpenRouter.