Model Comparison

Gemini 3.1 Pro vs Step3-VL-10BWhich is better in 2026?

Comparing Gemini 3.1 Pro and Step3-VL-10B across benchmarks, pricing, and capabilities.

Verdict: Gemini 3.1 Pro vs Step3-VL-10B — which is better?

Gemini 3.1 Pro (by Google) and Step3-VL-10B (by StepFun) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Choose Gemini 3.1 Pro if…

  • you want the most recent training data — it shipped Feb 2026

Choose Step3-VL-10B if…

  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Gemini 3.1 Pro and Step3-VL-10Bdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Gemini 3.1 Pro specifies input context (1,048,576 tokens). Only Gemini 3.1 Pro specifies output context (65,536 tokens).

Google
Gemini 3.1 Pro
Input1,048,576 tokens
Output65,536 tokens
StepFun
Step3-VL-10B
Input- tokens
Output- tokens
Sat Jun 13 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3.1 Pro and Step3-VL-10B support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemini 3.1 Pro

Text
Images
Audio
Video

Step3-VL-10B

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 3.1 Pro is licensed under a proprietary license, while Step3-VL-10B uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

Gemini 3.1 Pro

Proprietary

Closed source

Step3-VL-10B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Gemini 3.1 Pro was released on 2026-02-19, while Step3-VL-10B was released on 2026-01-15.

Gemini 3.1 Pro is 1 month newer than Step3-VL-10B.

Gemini 3.1 Pro

Feb 19, 2026

3 months ago

1mo newer
Step3-VL-10B

Jan 15, 2026

4 months ago

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a documented knowledge cutoff of 2025-01-31, while Step3-VL-10B's cutoff date is not specified.

We can confirm Gemini 3.1 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without Step3-VL-10B's cutoff date.

Gemini 3.1 Pro

Jan 2025

Step3-VL-10B

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Outputs Comparison

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Key Takeaways

Google
Larger context window (1,048,576 tokens)
StepFun
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3.1 Pro
StepFun
Step3-VL-10B

FAQ

Common questions about Gemini 3.1 Pro vs Step3-VL-10B.

Which is better, Gemini 3.1 Pro or Step3-VL-10B?

Gemini 3.1 Pro (Google) and Step3-VL-10B (StepFun) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Gemini 3.1 Pro compare to Step3-VL-10B in benchmarks?

Gemini 3.1 Pro scores t2-bench: 99.3%, LiveCodeBench Pro: 96.2%, GPQA: 94.3%, MMMLU: 92.6%, BrowseComp: 85.9%. Step3-VL-10B scores MMBench: 91.8%, AIME 2025: 87.7%, MathVista: 84.0%, MMMU: 78.1%, MathVision: 70.8%.

What are the context window sizes for Gemini 3.1 Pro and Step3-VL-10B?

Gemini 3.1 Pro supports 1.0M tokens and Step3-VL-10B supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3.1 Pro and Step3-VL-10B?

Key differences include licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.1 Pro and Step3-VL-10B?

Gemini 3.1 Pro is developed by Google and Step3-VL-10B is developed by StepFun.

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