Mercury 2.5 Preview vs LongCat 2.0: side-by-side summary

Mercury 2.5 Preview and LongCat 2.0 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Mercury 2.5 Preview, from inception, has a 260,000-token context window and is priced at $0.04/M tokens input, $0.15/M tokens output on OpenRouter.

LongCat 2.0, from meituan, has a 1,048,756-token context window and is priced at $0.30/M tokens input, $1.20/M tokens output on OpenRouter.

Context window

• Mercury 2.5 Preview: 260,000 tokens
• LongCat 2.0: 1,048,756 tokens

Price

• Mercury 2.5 Preview: $0.04/M tokens input, $0.15/M tokens output
• LongCat 2.0: $0.30/M tokens input, $1.20/M tokens output

Provided by

• Mercury 2.5 Preview: inception
• LongCat 2.0: meituan

• Mercury 2.5 Preview model details, providers and pricing
• LongCat 2.0 model details, providers and pricing