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27 Mar 2026 · Paper summary

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.

Figure from the paper "Intern-S1-Pro: Scientific Multimodal Foundation Model at Trillion Scale"
Figure from Zou et al. (2026), licensed CC BY 4.0. Figure 1 : The SAGE (Synergistic Architecture for Generalizable Experts, including three layers, Foundation, Fusion, and Evolution) framework used in Intern-S1-Pro development, illustrating the core capabilities and the …

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.

#llm#science#multimodal

Sources

  1. Intern-S1-Pro: Scientific Multimodal Foundation Model at Trillion Scale (arXiv:2603.25040) — arXiv
  2. Hugging Face Daily Papers, 2026-03-27 — Hugging Face
  3. 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.