Model Comparison

Gemini 2.5 Pro Preview 06-05 vs o1-pro

Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks.

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemini 2.5 Pro Preview 06-05 outperforms in 1 benchmarks (GPQA), while o1-pro is better at 0 benchmarks.

Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks.

Wed May 13 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Gemini 2.5 Pro Preview 06-05 specifies input context (1,048,576 tokens). Only Gemini 2.5 Pro Preview 06-05 specifies output context (65,535 tokens).

Google
Gemini 2.5 Pro Preview 06-05
Input1,048,576 tokens
Output65,535 tokens
OpenAI
o1-pro
Input- tokens
Output- tokens
Wed May 13 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 2.5 Pro Preview 06-05 and o1-pro support multimodal inputs.

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

Gemini 2.5 Pro Preview 06-05

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.

Gemini 2.5 Pro Preview 06-05

Proprietary

Closed source

o1-pro

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 2.5 Pro Preview 06-05 was released on 2025-06-05, while o1-pro was released on 2024-12-17.

Gemini 2.5 Pro Preview 06-05 is 6 months newer than o1-pro.

Gemini 2.5 Pro Preview 06-05

Jun 5, 2025

11 months ago

5mo newer
o1-pro

Dec 17, 2024

1.4 years ago

Knowledge Cutoff

When training data ends

Gemini 2.5 Pro Preview 06-05 has a knowledge cutoff of 2025-01-31, while o1-pro has a cutoff of 2023-09-30.

Gemini 2.5 Pro Preview 06-05 has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to o1-pro (2023-09-30).

Gemini 2.5 Pro Preview 06-05

Jan 2025

1.3 yr newer
o1-pro

Sep 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Key Takeaways

Larger context window (1,048,576 tokens)
Higher GPQA score (86.4% vs 79.0%)

No standout differentiators in the data we have for this pair.

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 2.5 Pro Preview 06-05
OpenAI
o1-pro

FAQ

Common questions about Gemini 2.5 Pro Preview 06-05 vs o1-pro.

Which is better, Gemini 2.5 Pro Preview 06-05 or o1-pro?

Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks. Gemini 2.5 Pro Preview 06-05 is made by Google 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 Gemini 2.5 Pro Preview 06-05 compare to o1-pro in benchmarks?

Gemini 2.5 Pro Preview 06-05 scores Global-MMLU-Lite: 89.2%, AIME 2025: 88.0%, FACTS Grounding: 87.8%, GPQA: 86.4%, VideoMMMU: 83.6%. o1-pro scores AIME 2024: 86.0%, GPQA: 79.0%.

What are the context window sizes for Gemini 2.5 Pro Preview 06-05 and o1-pro?

Gemini 2.5 Pro Preview 06-05 supports 1.0M 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.

Who makes Gemini 2.5 Pro Preview 06-05 and o1-pro?

Gemini 2.5 Pro Preview 06-05 is developed by Google and o1-pro is developed by OpenAI.