Sonar Pro Search and Inkling are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Sonar Pro Search, from Perplexity, has a 200,000-token context window and is priced at $3/M tokens input, $15/M tokens output on OpenRouter.
Inkling, from thinkingmachines, has a 1,048,576-token context window and is priced at $0.95/M tokens input, $4.05/M tokens output on OpenRouter.