Model Comparison

GPT-5.4 vs Step3-VL-10BWhich is better in 2026?

Comparing GPT-5.4 and Step3-VL-10B across benchmarks, pricing, and capabilities.

Verdict: GPT-5.4 vs Step3-VL-10B — which is better?

GPT-5.4 (by OpenAI) 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 GPT-5.4 if…

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

Choose Step3-VL-10B if…

  • you need open weights you can self-host or fine-tune
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GPT-5.4 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 GPT-5.4 specifies input context (1,000,000 tokens). Only GPT-5.4 specifies output context (128,000 tokens).

OpenAI
GPT-5.4
Input1,000,000 tokens
Output128,000 tokens
StepFun
Step3-VL-10B
Input- tokens
Output- tokens
Sat Jun 13 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5.4 and Step3-VL-10B support multimodal inputs.

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

GPT-5.4

Text
Images
Audio
Video

Step3-VL-10B

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5.4 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.

GPT-5.4

Proprietary

Closed source

Step3-VL-10B

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-5.4 was released on 2026-03-05, while Step3-VL-10B was released on 2026-01-15.

GPT-5.4 is 2 months newer than Step3-VL-10B.

GPT-5.4

Mar 5, 2026

3 months ago

1mo newer
Step3-VL-10B

Jan 15, 2026

4 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (1,000,000 tokens)
StepFun
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.4
StepFun
Step3-VL-10B

FAQ

Common questions about GPT-5.4 vs Step3-VL-10B.

Which is better, GPT-5.4 or Step3-VL-10B?

GPT-5.4 (OpenAI) 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 GPT-5.4 compare to Step3-VL-10B in benchmarks?

GPT-5.4 scores Tau2 Telecom: 98.9%, ARC-AGI: 93.7%, Graphwalks BFS <128k: 93.0%, GPQA: 92.8%, Graphwalks parents <128k: 89.8%. 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 GPT-5.4 and Step3-VL-10B?

GPT-5.4 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 GPT-5.4 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 GPT-5.4 and Step3-VL-10B?

GPT-5.4 is developed by OpenAI and Step3-VL-10B is developed by StepFun.

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