Step3-VL-10B
by StepFun
Step3-VL-10B is a 10B-parameter multimodal foundation model that redefines the trade-off between compact efficiency and frontier-level intelligence. Despite its size, it outperforms models 10×–20× larger (e.g., GLM-4.6V, Qwen3-VL-Thinking, Gemini 2.5 Pro) on STEM reasoning, visual perception, OCR, and GUI grounding. Key innovations include unified pre-training on a 1.2T-token multimodal corpus, scaled multimodal RL (1,400+ iterations), and Parallel Coordinated Reasoning (PaCoRe), which aggregates evidence from 16 parallel rollouts for superior accuracy. The model achieves SOTA results on benchmarks like AIME 2025 (94.43%), MathVision (75.95%), MMMU (80.11%), and OCRBench (89.00%). It is open-source (Apache 2.0 License) and deployable via transformers, vLLM, or SGLang.
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Weighted across four pillars · updated July 1, 2026
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