DeepSeek V4 Flash 0731 and Qwen3.7 Max are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
DeepSeek V4 Flash 0731, from DeepSeek, has a 1,048,576-token context window and is priced at $0.08/M tokens input, $0.252/M tokens output on OpenRouter.
Qwen3.7 Max, from Qwen, has a 1,000,000-token context window and is priced at $1.475/M tokens input, $4.425/M tokens output on OpenRouter.