FLUX.2 Max and Seedream 5.0 Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
FLUX.2 Max, from black-forest-labs, has a 46,864-token context window and is priced at $0.07/megapixel on OpenRouter.
Seedream 5.0 Pro, from bytedance-seed, is priced from $0.045/image on OpenRouter.