Model Comparison

o3-mini vs o1-proWhich is better in 2026?

Both models are evenly matched across the benchmarks.

Verdict: o3-mini vs o1-pro — which is better?

o3-mini (by OpenAI) 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.

o3-mini outperforms in 1 benchmarks (AIME 2024), while o1-pro is better at 1 benchmark (GPQA). Both models are evenly matched across the benchmarks.

Choose o3-mini if…

  • you want the most recent training data — it shipped Jan 2025

Choose o1-pro if…

  • you are already invested in the OpenAI ecosystem
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

o3-mini outperforms in 1 benchmarks (AIME 2024), while o1-pro is better at 1 benchmark (GPQA).

Both models are evenly matched across the benchmarks.

Sat Jun 13 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only o3-mini specifies input context (200,000 tokens). Only o3-mini specifies output context (100,000 tokens).

OpenAI
o3-mini
Input200,000 tokens
Output100,000 tokens
OpenAI
o1-pro
Input- tokens
Output- tokens
Sat Jun 13 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

o1-pro supports multimodal inputs, whereas o3-mini does not.

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

o3-mini

Text
Images
Audio
Video

o1-pro

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

o3-mini

Proprietary

Closed source

o1-pro

Proprietary

Closed source

Release Timeline

When each model was launched

o3-mini was released on 2025-01-30, while o1-pro was released on 2024-12-17.

o3-mini is 1 month newer than o1-pro.

o3-mini

Jan 30, 2025

1.4 years ago

1mo newer
o1-pro

Dec 17, 2024

1.5 years ago

Knowledge Cutoff

When training data ends

Both models have the same knowledge cutoff date of 2023-09-30.

They should have similar awareness of historical events and information up to this date.

o3-mini

Sep 2023

o1-pro

Sep 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (200,000 tokens)
Higher AIME 2024 score (87.3% vs 86.0%)
OpenAI
Supports multimodal inputs
Higher GPQA score (79.0% vs 77.2%)

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
o3-mini
OpenAI
o1-pro

FAQ

Common questions about o3-mini vs o1-pro.

Which is better, o3-mini or o1-pro?

Both models are evenly matched across the benchmarks. o3-mini is made by OpenAI 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 o3-mini compare to o1-pro in benchmarks?

o3-mini scores COLLIE: 98.7%, MATH: 97.9%, IFEval: 93.9%, MGSM: 92.0%, AIME 2024: 87.3%. o1-pro scores AIME 2024: 86.0%, GPQA: 79.0%.

What are the context window sizes for o3-mini and o1-pro?

o3-mini supports 200K tokens and o1-pro 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 o3-mini and o1-pro?

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

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