InternLM is a series of open-source large language models developed by Shanghai AI Laboratory that delivers strong multilingual performance with specialized variants for mathematical reasoning, long-context processing, and tool use — part of the growing Chinese open-source AI ecosystem alongside Qwen (Alibaba), DeepSeek, and ChatGLM (Tsinghua), with competitive performance on both English and Chinese benchmarks and fully open weights for research and commercial use.

What Is InternLM?

• Definition: A family of transformer-based language models from Shanghai AI Laboratory (上海人工智能实验室) — one of China's premier government-backed AI research institutions, producing models that compete with international counterparts on standard benchmarks.
• Model Variants: InternLM provides base models (7B, 20B), chat-tuned versions (InternLM-Chat), math-specialized models (InternLM-Math), and extended-context versions — covering the major use cases for both research and application development.
• Chinese AI Ecosystem: InternLM is part of the broader Chinese open-source LLM landscape — alongside Qwen (Alibaba Cloud), DeepSeek, Baichuan, ChatGLM (Tsinghua), and Yi (01.AI) — collectively providing Chinese-language AI capabilities that rival Western models.
• Open Weights: Released with permissive licenses for both research and commercial use — enabling deployment in Chinese-market applications without licensing restrictions.

InternLM Model Family

Why InternLM Matters

• Chinese Language Excellence: Strong performance on Chinese language benchmarks (C-Eval, CMMLU) — essential for applications targeting Chinese-speaking users.
• Tool Use: InternLM models are trained with tool-use capabilities — the model can generate function calls, use calculators, search engines, and code interpreters as part of its reasoning process.
• Research Contributions: Shanghai AI Lab publishes detailed technical reports and contributes to the broader ML research community — InternLM's training methodology and data curation insights benefit the entire ecosystem.
• Ecosystem Integration: InternLM integrates with the OpenMMLab ecosystem (MMDetection, MMSegmentation) — enabling multimodal applications that combine language understanding with computer vision.

InternLM is Shanghai AI Laboratory's contribution to the open-source LLM ecosystem — providing competitive multilingual models with specialized variants for math, vision, and tool use that serve both the Chinese AI market and the global research community with fully open weights and training insights.