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🚨 AI News | TestingCatalog (@testingcatalog) on X
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🚨 AI News | TestingCatalog (@testingcatalog) on X

LongCat-2.5 is Meituan's natively multimodal agentic model with 1.6T total parameters and about 48-49B active (the post gives both figures), so it is a mixture-of-experts design. It targets long-horizon agentic tasks, with stronger visual understanding and agentic coding, from complex coding projects to visual coding. The post says it was compared with GPT-5.5, GPT-5.6-Sol, Claude-Opus-4.8 and Claude-Opus-5, and is available through APIs. No benchmark numbers appear in the text.

TL;DR Reports Meituan's release of LongCat-2.5, a 1.6T-parameter multimodal agentic model with about 48B active, now on APIs.

Organisations named here

  • Meituan
  • OpenAI
  • Anthropic
  • TestingCatalog

Technologies named here

  • gpt-5.5
  • GPT-5.6 Sol
  • Claude Opus 4.8
  • Claude Opus 5
  • Opus 5
  • LongCat-2.5

Techniques named here

  • Mixture of experts
  • vision-language model

Concepts named here

  • Long-horizon agentic tasks
  • Native multimodality