MAI-Image-2.5 Pro and GPT Image 1 Mini are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
MAI-Image-2.5 Pro, from Microsoft, has a 4,096-token context window and is priced at $5/M tokens on OpenRouter.
GPT Image 1 Mini, from OpenAI, has a 400,000-token context window and is priced at $2.50/M tokens input, $2.50/M tokens output on OpenRouter.