Model Comparison

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

Comparing o1-mini and o3-pro across benchmarks, pricing, and capabilities.

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

o1-mini (by OpenAI) and o3-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.

On price, o1-mini is roughly 6.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

o3-pro also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose o1-mini if…

  • cost matters — it's about 6.7x cheaper per token

Choose o3-pro if…

  • you process long inputs — it offers a 200,000 token context window
  • you want the most recent training data — it shipped Jun 2025
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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

o1-mini and o3-prodon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

o1-mini costs less

For input processing, o1-mini ($3.00/1M tokens) is 6.7x cheaper than o3-pro ($20.00/1M tokens).

For output processing, o1-mini ($12.00/1M tokens) is 6.7x cheaper than o3-pro ($80.00/1M tokens).

In conclusion, o3-pro is more expensive than o1-mini.*

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

Lowest available price from all providers
Thu Jun 25 2026 • llm-stats.com
OpenAI
o1-mini
Input tokens$3.00
Output tokens$12.00
Best providerOpenAI
OpenAI
o3-pro
Input tokens$20.00
Output tokens$80.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

o3-pro accepts 200,000 input tokens compared to o1-mini's 128,000 tokens. o3-pro can generate longer responses up to 100,000 tokens, while o1-mini is limited to 65,536 tokens.

OpenAI
o1-mini
Input128,000 tokens
Output65,536 tokens
OpenAI
o3-pro
Input200,000 tokens
Output100,000 tokens
Thu Jun 25 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

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

o3-pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

o1-mini

Text
Images
Audio
Video

o3-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.

o1-mini

Proprietary

Closed source

o3-pro

Proprietary

Closed source

Release Timeline

When each model was launched

o1-mini was released on 2024-09-12, while o3-pro was released on 2025-06-10.

o3-pro is 9 months newer than o1-mini.

o1-mini

Sep 12, 2024

1.8 years ago

o3-pro

Jun 10, 2025

1.0 years ago

9mo newer

Knowledge Cutoff

When training data ends

o3-pro has a documented knowledge cutoff of 2024-05-31, while o1-mini's cutoff date is not specified.

We can confirm o3-pro's training data extends to 2024-05-31, but cannot make a direct comparison without o1-mini's cutoff date.

o1-mini

—

o3-pro

May 2024

Provider Availability

o1-mini is available from OpenAI, Azure. o3-pro is available from OpenAI.

o1-mini

openai logo
OpenAI
Input Price:Input: $3.00/1MOutput Price:Output: $12.00/1M
azure logo
Azure
Input Price:Input: $3.30/1MOutput Price:Output: $13.20/1M

o3-pro

openai logo
OpenAI
Input Price:Input: $20.00/1MOutput Price:Output: $80.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Less expensive input tokens
Less expensive output tokens
OpenAI
Larger context window (200,000 tokens)
Supports multimodal inputs

Detailed Comparison

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

FAQ

Common questions about o1-mini vs o3-pro.

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

o1-mini (OpenAI) and o3-pro (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 o1-mini compare to o3-pro in benchmarks?

o1-mini scores HumanEval: 92.4%, MATH-500: 90.0%, MMLU: 85.2%, SuperGLUE: 75.0%, GPQA: 60.0%.

Is o1-mini cheaper than o3-pro?

o1-mini is 6.7x cheaper for input tokens. o1-mini costs $3.00/M input and $12.00/M output via openai. o3-pro costs $20.00/M input and $80.00/M output via openai.

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

o1-mini supports 128K tokens and o3-pro supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between o1-mini and o3-pro?

Key differences include context window (128K vs 200K), input pricing ($3.00 vs $20.00/M), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

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