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FLUX.2 Flex vs LongCat Flash Chat: side-by-side summary

FLUX.2 Flex and LongCat Flash Chat are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

FLUX.2 Flex, from black-forest-labs, has a 67,344-token context window and is priced from $0.06/megapixel on OpenRouter.

LongCat Flash Chat, from meituan, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.

Context window
  • FLUX.2 Flex: 67,344 tokens
  • LongCat Flash Chat: 131,072 tokens
Price
  • FLUX.2 Flex: from $0.06/megapixel
  • LongCat Flash Chat: Pricing varies by provider
Provided by
  • FLUX.2 Flex: black-forest-labs
  • LongCat Flash Chat: meituan
  • FLUX.2 Flex model details, providers and pricing
  • LongCat Flash Chat model details, providers and pricing