Model Comparison

DeepSeek VL2 Small vs GPT-5.6 LunaWhich is better in 2026?

Comparing DeepSeek VL2 Small and GPT-5.6 Luna across benchmarks, pricing, and capabilities.

Verdict: DeepSeek VL2 Small vs GPT-5.6 Luna — which is better?

DeepSeek VL2 Small (by DeepSeek) and GPT-5.6 Luna (by OpenAI) 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 DeepSeek VL2 Small if…

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

Choose GPT-5.6 Luna if…

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

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

DeepSeek VL2 Small and GPT-5.6 Lunadon'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-5.6 Luna specifies input context (1,050,000 tokens). Only GPT-5.6 Luna specifies output context (128,000 tokens).

DeepSeek
DeepSeek VL2 Small
Input- tokens
Output- tokens
OpenAI
GPT-5.6 Luna
Input1,050,000 tokens
Output128,000 tokens
Sun Jul 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both DeepSeek VL2 Small and GPT-5.6 Luna support multimodal inputs.

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

DeepSeek VL2 Small

Text
Images
Audio
Video

GPT-5.6 Luna

Text
Images
Audio
Video

License

Usage and distribution terms

DeepSeek VL2 Small is licensed under deepseek, while GPT-5.6 Luna uses a proprietary license.

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

DeepSeek VL2 Small

deepseek

Open weights

GPT-5.6 Luna

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek VL2 Small was released on 2024-12-13, while GPT-5.6 Luna was released on 2026-07-09.

GPT-5.6 Luna is 19 months newer than DeepSeek VL2 Small.

DeepSeek VL2 Small

Dec 13, 2024

1.6 years ago

GPT-5.6 Luna

Jul 9, 2026

1 weeks ago

1.6yr newer

Knowledge Cutoff

When training data ends

GPT-5.6 Luna has a documented knowledge cutoff of 2026-02-16, while DeepSeek VL2 Small's cutoff date is not specified.

We can confirm GPT-5.6 Luna's training data extends to 2026-02-16, but cannot make a direct comparison without DeepSeek VL2 Small's cutoff date.

DeepSeek VL2 Small

—

GPT-5.6 Luna

Feb 2026

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

DeepSeek
Has open weights
OpenAI
Larger context window (1,050,000 tokens)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against DeepSeek VL2 Small and GPT-5.6 Luna side-by-side, then vote on the output you prefer.

DeepSeek VL2 Small
✓ Preferred
GPT-5.6 Luna
Open in Playground
AI Model Comparison Table
Feature
DeepSeek
DeepSeek VL2 Small
OpenAI
GPT-5.6 Luna

FAQ

Common questions about DeepSeek VL2 Small vs GPT-5.6 Luna.

Which is better, DeepSeek VL2 Small or GPT-5.6 Luna?

DeepSeek VL2 Small (DeepSeek) and GPT-5.6 Luna (OpenAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does DeepSeek VL2 Small compare to GPT-5.6 Luna in benchmarks?

DeepSeek VL2 Small scores DocVQA: 92.3%, ChartQA: 84.5%, OCRBench: 83.4%, TextVQA: 83.4%, MMBench: 80.3%. GPT-5.6 Luna scores Connectors: 99.9%, HealthBench Consensus: 95.1%, GPQA: 92.3%, Search and Function-Calling: 89.7%, Capture-the-Flag Challenges (Internal): 85.2%.

What are the context window sizes for DeepSeek VL2 Small and GPT-5.6 Luna?

DeepSeek VL2 Small supports an unknown number of tokens and GPT-5.6 Luna supports 1.1M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek VL2 Small and GPT-5.6 Luna?

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

Who makes DeepSeek VL2 Small and GPT-5.6 Luna?

DeepSeek VL2 Small is developed by DeepSeek and GPT-5.6 Luna is developed by OpenAI.

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