Overview
LongCat is Meituan's self-developed large model AI dialogue platform, trained end-to-end on domestic computing power (Huawei Ascend). Key milestones: Released LongCat-2.0-Preview on 2026-04-24 (trillion parameters, launched on the same day as DeepSeek V4), and officially open-sourced LongCat 2.0 on 2026-06-30 (1.6T parameters), becoming the world's first trillion-level foundational model fully relying on a domestic 50,000-card computing cluster for the entire pre-training and inference pipeline. Concurrently, the native multimodal model LongCat-Next was open-sourced, integrating vision and speech capabilities into the AI foundation. On 2026-09-02, LongCat-2.0 launched a free trial on Cline, extending its reach to developers in the code agent ecosystem.
For detailed information on the official open-source version, free commercial terms, and key optimizations for code agents, please visit LongCat 2.0.
Key Features
- Domestic Computing Power Autonomous Training: World's first trillion-level model fully relying on a domestic 50,000-card cluster for the entire pre-training and inference pipeline
- Trillion Parameter Scale: LongCat 2.0 (1.6T parameters) has been officially open-sourced, ranking among the world's top large models
- Million Token Context: Supports large-scale document understanding and long conversations, covering enterprise-level long-text scenarios
- LongCat-Next Multimodal Open Source: Native multimodal model, treating vision and speech as AI native languages, with fully open-sourced discrete tokenizer
- Free Commercial Use: Starting from 2026-06-30, LongCat 2.0 official version is free for commercial use, with key optimizations for code agents
- Cline Free Trial: LongCat-2.0 launched a free trial on Cline on 2026-09-02, bringing the model to developers in the code agent ecosystem
Use Cases
- Daily conversation and knowledge Q&A
- Ultra-long document analysis and summarization
- Multimodal content understanding (image/video)
- Intelligent services within Meituan's ecosystem (dining/delivery/travel)
- Developers building applications based on open-source models
- Code agent development via Cline
Pros
- Trillion parameters + million context, performance ranks among the global top tier
- Full-stack domestic computing power, free from overseas chip restrictions
- LongCat 2.0 is open-sourced, multimodal ecosystem is open
- Free for commercial use, no barriers for individuals or enterprises
- Meituan's rich application scenarios support continuous model iteration
- Free trial on Cline from 2026-09-02, convenient for code agent developers
Pricing
LongCat 2.0 Open Source Version (starting from 2026-06-30): Free for commercial use, self-deployable. LongCat Official Web/App: Currently free to use; official commercial API pricing to be announced. Cline: LongCat-2.0 free trial available starting from 2026-09-02.
Summary
LongCat is Meituan's major strategic move in the large model arena, with a steady pace from the Preview on 4/24 to the official open source on 6/30 and a free trial on Cline on 2026-09-02. Trillion parameter scale + domestic computing power autonomy + free commercial use are the three core highlights. It is worth considering for developers and enterprises focused on the domestic large model ecosystem, multimodal open source, and code agents. View details of the official open-source version: LongCat 2.0.
Version History
- Meituan LongCat-2.0 launches free trial on Cline (2026-09-02):