Paper summary: Intern-S1-Pro: Scientific Multimodal Foundation Model at Trillion Scale
Intern-S1-Pro is described as the first one-trillion-parameter scientific multimodal foundation model, covering over 100 specialised science tasks while staying top-tier among open models on general ability.

Problem
General LLMs are broad but shallow on specialised science. Specialised models are deep but narrow.
Method
Intern-S1-Pro scales to one trillion parameters. Development follows the SAGE framework (Synergistic Architecture for Generalizable Experts) with Foundation, Fusion and Evolution layers (Figure 1). The XTuner and LMDeploy infrastructure enables efficient RL training at the 1T scale, while keeping precision consistent between training and inference.
Key results
From the abstract:
- stronger reasoning, image–text understanding and agent capabilities
- expertise across over 100 specialised tasks in chemistry, materials, life sciences and earth sciences
- top tier among open-source models on general capabilities, and ahead of proprietary models on the depth of specialised scientific tasks
Limitations
There’s no dedicated limitations section in the extracted text. Comparisons are the developers’ own.
Sources
- Intern-S1-Pro: Scientific Multimodal Foundation Model at Trillion Scale (arXiv:2603.25040) — arXiv
- Hugging Face Daily Papers, 2026-03-27 — Hugging Face
- Intern-S1-Pro: Scientific Multimodal Foundation Model at Trillion Scale (arXiv HTML full text) — arXiv
This is a summary written from the linked public sources. Figures and numbers are as reported there.