Model Comparison

DeepSeek R1 Distill Qwen 1.5B vs o1-proWhich is better in 2026?

o1-pro significantly outperforms across most benchmarks.

Verdict: DeepSeek R1 Distill Qwen 1.5B vs o1-pro — which is better?

DeepSeek R1 Distill Qwen 1.5B (by DeepSeek) and o1-pro (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.

DeepSeek R1 Distill Qwen 1.5B outperforms in 0 benchmarks, while o1-pro is better at 2 benchmarks (AIME 2024, GPQA). o1-pro significantly outperforms across most benchmarks.

Choose DeepSeek R1 Distill Qwen 1.5B if…

  • you want the most recent training data — it shipped Jan 2025
  • you need open weights you can self-host or fine-tune

Choose o1-pro if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

DeepSeek R1 Distill Qwen 1.5B outperforms in 0 benchmarks, while o1-pro is better at 2 benchmarks (AIME 2024, GPQA).

o1-pro significantly outperforms across most benchmarks.

Sat Jun 13 2026 • llm-stats.com

Arena Performance

Human preference votes

Input Capabilities

Supported data types and modalities

o1-pro supports multimodal inputs, whereas DeepSeek R1 Distill Qwen 1.5B does not.

o1-pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

DeepSeek R1 Distill Qwen 1.5B

Text
Images
Audio
Video

o1-pro

Text
Images
Audio
Video

License

Usage and distribution terms

DeepSeek R1 Distill Qwen 1.5B is licensed under MIT, while o1-pro uses a proprietary license.

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

DeepSeek R1 Distill Qwen 1.5B

MIT

Open weights

o1-pro

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek R1 Distill Qwen 1.5B was released on 2025-01-20, while o1-pro was released on 2024-12-17.

DeepSeek R1 Distill Qwen 1.5B is 1 month newer than o1-pro.

DeepSeek R1 Distill Qwen 1.5B

Jan 20, 2025

1.4 years ago

1mo newer
o1-pro

Dec 17, 2024

1.5 years ago

Knowledge Cutoff

When training data ends

o1-pro has a documented knowledge cutoff of 2023-09-30, while DeepSeek R1 Distill Qwen 1.5B's cutoff date is not specified.

We can confirm o1-pro's training data extends to 2023-09-30, but cannot make a direct comparison without DeepSeek R1 Distill Qwen 1.5B's cutoff date.

DeepSeek R1 Distill Qwen 1.5B

—

o1-pro

Sep 2023

Outputs Comparison

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Key Takeaways

DeepSeek
Has open weights
OpenAI
Supports multimodal inputs
Higher AIME 2024 score (86.0% vs 52.7%)
Higher GPQA score (79.0% vs 33.8%)

Detailed Comparison

AI Model Comparison Table
Feature
DeepSeek
DeepSeek R1 Distill Qwen 1.5B
OpenAI
o1-pro

FAQ

Common questions about DeepSeek R1 Distill Qwen 1.5B vs o1-pro.

Which is better, DeepSeek R1 Distill Qwen 1.5B or o1-pro?

o1-pro significantly outperforms across most benchmarks. DeepSeek R1 Distill Qwen 1.5B is made by DeepSeek and o1-pro is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does DeepSeek R1 Distill Qwen 1.5B compare to o1-pro in benchmarks?

DeepSeek R1 Distill Qwen 1.5B scores MATH-500: 83.9%, AIME 2024: 52.7%, GPQA: 33.8%, LiveCodeBench: 16.9%. o1-pro scores AIME 2024: 86.0%, GPQA: 79.0%.

What are the main differences between DeepSeek R1 Distill Qwen 1.5B and o1-pro?

Key differences include multimodal support (no vs yes), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes DeepSeek R1 Distill Qwen 1.5B and o1-pro?

DeepSeek R1 Distill Qwen 1.5B is developed by DeepSeek and o1-pro is developed by OpenAI.

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