Ling 3.0 Flash Fin and LongCat 2.0 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Ling 3.0 Flash Fin, from inclusionai, has a 262,144-token context window and is priced by the provider serving it on OpenRouter.
LongCat 2.0, from meituan, has a 1,048,756-token context window and is priced at $0.30/M tokens input, $1.20/M tokens output on OpenRouter.