Compare FLUX.2 Klein 4B from black-forest-labs and Riverflow V2.5 Pro from Sourceful on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
FLUX.2 Klein 4B and Riverflow V2.5 Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
FLUX.2 Klein 4B, from black-forest-labs, has a 40,960-token context window and is priced at $0.014/megapixel on OpenRouter.
Riverflow V2.5 Pro, from Sourceful, has a 32,768-token context window and is priced from $0.13/image on OpenRouter.