Cogito v2.1 671B and Mistral Large 3 2512 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Cogito v2.1 671B, from deepcogito, has a 128,000-token context window and is priced at $1.25/M tokens input, $1.25/M tokens output on OpenRouter.
Mistral Large 3 2512, from Mistral AI, has a 262,144-token context window and is priced at $0.50/M tokens input, $1.50/M tokens output on OpenRouter.