StepFun model product
Step3 VL 10B
STEP3-VL-10B is a lightweight open-source foundation model designed to redefine the trade-off between compact efficiency and frontier-level multimodal intelligence.
Updated Aug 12, 2026. Default version: Step3-VL-10B
LLMBoard score43.6Step3-VL-10B
Coverage40%6 benchmark families
Context windowN/ATokens
Official input priceN/AOfficial price unavailable
Step3 VL 10B Specifications
Technical details for the model's default version.
- Version
- Step3-VL-10B
- Released
- Jan 15, 2026
- Knowledge cutoff
- Unknown
- Parameters
- 10B
- Context window
- N/A
- Max output
- N/A
- Inputs
- image, text
- Outputs
- text
- Open weights
- No
- License
- Apache 2.0
Step3 VL 10B Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Step3 VL 10B Benchmark Results
Benchmark scores for Step3-VL-10B.
| MMBench | 91.8% | 01 | 9 | 100.0% | C | |
| MathVista | 84.0% | 05 | 39 | 89.5% | C | |
| Multi-Challenge | 62.6% | 07 | 29 | 78.6% | C | |
| MathVision | 70.8% | 15 | 32 | 54.8% | C | |
| MMMU | 78.1% | 16 | 63 | 75.8% | C | |
| AIME 2025 | 87.7% | 54 | 114 | 53.1% | C |
Step3 VL 10B Arena Results
Preference and agent-evaluation results for the default version.
No Arena results
The default version does not have a matching Arena result yet.
Step3 VL 10B Runtime Performance
Provider-specific output speed and catalog latency for Step3-VL-10B. Runtime does not affect the capability score.
No runtime data
Browse runtime rankingsNo provider-specific speed or latency record is linked to the default version yet.
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
Step3 VL 10B Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- N/A
- Official provider
- N/A
- Lowest third-party
- N/A
- Tracked offerings
- 0
No provider prices
The default version has no current input or output token prices.
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
Step3 VL 10B Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
| Step3-VL-10B | 43.6 | 10B | N/A | N/A | No | Apache 2.0 |
What is Step3 VL 10B?
Key information about Step3 VL 10B and its available data.
STEP3-VL-10B is a lightweight open-source foundation model designed to redefine the trade-off between compact efficiency and frontier-level multimodal intelligence. 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.
Data as of 2026-08-11.
Step3 VL 10B vs nearby models
Open a comparison with the three ranked models immediately above and below this model.
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FAQ
Common questions about Step3 VL 10B.
When was Step3 VL 10B released?
Step3 VL 10B's default version was released on Jan 15, 2026.
How much does Step3 VL 10B cost?
No official standard PAYG price is currently available for Step3 VL 10B.
Who created Step3 VL 10B?
Step3 VL 10B was created by StepFun.
What is the context window for Step3 VL 10B?
A context window is not available for the default version.
Is Step3 VL 10B open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer Step3 VL 10B?
No provider offering is currently linked to the default version.
What models should I compare Step3 VL 10B with?
Nearby ranked alternatives include MiniMax M2, Nova 2 Omni, GPT-5-Codex.