Ling-3.0-flash and Hermes 4 70B 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.
Hermes 4 70B, from Nous Research, has a 131,072-token context window and is priced at $0.13/M tokens input, $0.40/M tokens output on OpenRouter.