Model Comparison

o3-mini vs Gemini 2.5 Pro Preview 06-05

Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks. o3-mini is 1.8x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

o3-mini outperforms in 0 benchmarks, while Gemini 2.5 Pro Preview 06-05 is better at 4 benchmarks (Aider-Polyglot, GPQA, SimpleQA, SWE-Bench Verified).

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

Wed Apr 22 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

o3-mini costs less

For input processing, o3-mini ($1.10/1M tokens) is 1.1x cheaper than Gemini 2.5 Pro Preview 06-05 ($1.25/1M tokens).

For output processing, o3-mini ($4.40/1M tokens) is 2.3x cheaper than Gemini 2.5 Pro Preview 06-05 ($10.00/1M tokens).

In conclusion, Gemini 2.5 Pro Preview 06-05 is more expensive than o3-mini.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Wed Apr 22 2026 • llm-stats.com
OpenAI
o3-mini
Input tokens$1.10
Output tokens$4.40
Best providerAzure
Google
Gemini 2.5 Pro Preview 06-05
Input tokens$1.25
Output tokens$10.00
Best providerGoogle
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Context Window

Maximum input and output token capacity

Gemini 2.5 Pro Preview 06-05 accepts 1,048,576 input tokens compared to o3-mini's 200,000 tokens. o3-mini can generate longer responses up to 100,000 tokens, while Gemini 2.5 Pro Preview 06-05 is limited to 65,535 tokens.

OpenAI
o3-mini
Input200,000 tokens
Output100,000 tokens
Google
Gemini 2.5 Pro Preview 06-05
Input1,048,576 tokens
Output65,535 tokens
Wed Apr 22 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 2.5 Pro Preview 06-05 supports multimodal inputs, whereas o3-mini does not.

Gemini 2.5 Pro Preview 06-05 can handle both text and other forms of data like images, making it suitable for multimodal applications.

o3-mini

Text
Images
Audio
Video

Gemini 2.5 Pro Preview 06-05

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

Gemini 2.5 Pro Preview 06-05

Proprietary

Closed source

Release Timeline

When each model was launched

o3-mini was released on 2025-01-30, while Gemini 2.5 Pro Preview 06-05 was released on 2025-06-05.

Gemini 2.5 Pro Preview 06-05 is 4 months newer than o3-mini.

o3-mini

Jan 30, 2025

1.2 years ago

Gemini 2.5 Pro Preview 06-05

Jun 5, 2025

10 months ago

4mo newer

Knowledge Cutoff

When training data ends

o3-mini has a knowledge cutoff of 2023-09-30, while Gemini 2.5 Pro Preview 06-05 has a cutoff of 2025-01-31.

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 o3-mini (2023-09-30).

o3-mini

Sep 2023

Gemini 2.5 Pro Preview 06-05

Jan 2025

1.3 yr newer

Provider Availability

o3-mini is available from Azure, OpenAI. Gemini 2.5 Pro Preview 06-05 is available from Google.

o3-mini

azure logo
Azure
Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M
openai logo
OpenAI
Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M

Gemini 2.5 Pro Preview 06-05

google logo
Google
Input Price:Input: $1.25/1MOutput Price:Output: $10.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Less expensive input tokens
Less expensive output tokens
Google
Larger context window (1,048,576 tokens)
Supports multimodal inputs
Higher Aider-Polyglot score (82.2% vs 66.7%)
Higher GPQA score (86.4% vs 77.2%)
Higher SimpleQA score (54.0% vs 15.0%)
Higher SWE-Bench Verified score (67.2% vs 49.3%)

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
o3-mini
Google
Gemini 2.5 Pro Preview 06-05

FAQ

Common questions about o3-mini vs Gemini 2.5 Pro Preview 06-05

Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks. o3-mini is made by OpenAI and Gemini 2.5 Pro Preview 06-05 is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
o3-mini scores COLLIE: 98.7%, MATH: 97.9%, IFEval: 93.9%, MGSM: 92.0%, AIME 2024: 87.3%. 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%.
o3-mini is 1.1x cheaper for input tokens. o3-mini costs $1.10/M input and $4.40/M output via azure. Gemini 2.5 Pro Preview 06-05 costs $1.25/M input and $10.00/M output via google.
o3-mini supports 200K tokens and Gemini 2.5 Pro Preview 06-05 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 1.0M), input pricing ($1.10 vs $1.25/M), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.
o3-mini is developed by OpenAI and Gemini 2.5 Pro Preview 06-05 is developed by Google.