Claude Opus 5 vs LongCat 2.0: side-by-side summary

Claude Opus 5 and LongCat 2.0 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Opus 5, from Anthropic, has a 1,000,000-token context window and is priced at $5/M tokens input, $25/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

• Claude Opus 5: 1,000,000 tokens
• LongCat 2.0: 1,048,756 tokens

Price

• Claude Opus 5: $5/M tokens input, $25/M tokens output
• LongCat 2.0: $0.30/M tokens input, $1.20/M tokens output

Provided by

• Claude Opus 5: Anthropic
• LongCat 2.0: meituan

• Claude Opus 5 model details, providers and pricing
• LongCat 2.0 model details, providers and pricing