InternSVG: Towards Unified SVG Tasks with Multimodal Large Language
  Models
Authors: name: Haomin Wang; name: Jinhui Yin; name: Qi Wei; name: Wenguang Zeng; name: Lixin Gu; name: Shenglong Ye; name: Zhangwei Gao; name: Yaohui Wang; name: Yanting Zhang; name: Yuanqi Li; name: Yanwen Guo; name: Wenhai Wang; name: Kai Chen; name: Yu Qiao; name: Hongjie Zhang
Published: 2025-10-13 12:38:04

Abstract: General SVG modeling remains challenging due to fragmented datasets, limited
transferability of methods across tasks, and the difficulty of handling
structural complexity. In response, we leverage the strong transfer and
generalization capabilities of multimodal large language models (MLLMs) to
achieve unified modeling for SVG understanding, editing, and generation. We
present the InternSVG family, an integrated data-benchmark-model suite. At its
core is SAgoge, the largest and most comprehensive multimodal dataset for SVG
tasks, encompassing both static graphics and dynamic animations. It covers
icons, long-sequence illustrations, scientific diagrams, and dynamic
animations, supporting tasks of varied difficulty levels and providing deeper
hierarchies with richer attributes compared to previous datasets. Based on this
resource, we introduce SArena, a companion benchmark with comprehensive task
definitions and standardized evaluation that aligns with the domains and
difficulty spectrum covered by SAgoge. Building on these foundations, we
propose InternSVG, a unified MLLM for SVG understanding, editing, and
generation with SVG-specific special tokens, subword-based embedding
initialization, and a two-stage training strategy that progresses from short
static SVGs to long-sequence illustrations and complex animations. This unified
formulation induces positive transfer and improves overall performance.
Experiments on SArena and prior benchmark confirm that InternSVG achieves
substantial gains and consistently outperforms leading open and proprietary
counterparts.