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Step3 VL 10B

StepFunOpen WeightApache 2.0 · Commercial OK

Description

STEP3-VL-10B is a lightweight open-source foundation model designed to redefine the trade-off between compact efficiency and frontier-level multimodal intelligence. Built on a unified, fully unfrozen pre-training strategy on 1.2T multimodal tokens integrating a language-aligned Perception Encoder with a Qwen3-8B decoder. Features Parallel Coordinated Reasoning (PaCoRe) to scale test-time compute for complex perceptual reasoning.

Release Date
2026-01-20
Parameters
10.0B
Context Length
Modalities

Capability Radar

14
general
17
coding
69
reasoning
44
scienceest.
0
agents
85
multimodal

Science uses a reasoning proxy when dedicated science benchmarks are unavailable.

Rankings

Domain#RankScoreSource
Code Ranking393
14.0
AA
General Ranking386
27.0
AA
Multimodal Ranking7
92.0
LS
Science192
48.0
AA

Benchmark Scores (LLM Stats)

Communication

Multi-Challenge62.6%SR

General

MMMU78.1%SR

Math

AIME 202587.7%SR
MathVista84.0%SR
MathVision70.8%SR

Multimodal

MMBench91.8%SR

AA Evaluation Indices

Intelligence Index
15.4
Coding Index
13.9
Gpqa
0.7
Ifbench
0.5
Scicode
0.3
Tau2
0.2
Hle
0.1
Terminalbench Hard
0.1
Lcr
0.0

LLM Stats Category Scores

Vision
80
General
80
Healthcare
80
Math
80
Multimodal
80
Reasoning
80
Communication
60

Pricing

Input PriceFree
Output PriceFree
Blended Price (3:1)Free

Speed

Tokens/sec0.0 tokens/s
Time to First Token0.00s
Time to Answer0.00s

Available Providers

(LS internal units)

No provider data available

External Sources