GPT-4o mini vs o3-mini Comparison

Comparing GPT-4o mini and o3-mini across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

GPT-4o mini outperforms in 0 benchmarks, while o3-mini is better at 5 benchmarks (GPQA, MATH, MGSM, MMLU, SWE-Bench Verified).

o3-mini significantly outperforms across most benchmarks.

Sat Mar 21 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-4o mini costs less

For input processing, GPT-4o mini ($0.15/1M tokens) is 7.3x cheaper than o3-mini ($1.10/1M tokens).

For output processing, GPT-4o mini ($0.60/1M tokens) is 7.3x cheaper than o3-mini ($4.40/1M tokens).

In conclusion, o3-mini is more expensive than GPT-4o mini.*

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

Lowest available price from all providers

Sat Mar 21 2026 • llm-stats.com

GPT-4o mini

Input tokens$0.15

Output tokens$0.60

Best providerAzure

o3-mini

Input tokens$1.10

Output tokens$4.40

Best providerAzure

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Context Window

Maximum input and output token capacity

o3-mini accepts 200,000 input tokens compared to GPT-4o mini's 128,000 tokens. o3-mini can generate longer responses up to 100,000 tokens, while GPT-4o mini is limited to 16,384 tokens.

GPT-4o mini

Input128,000 tokens

Output16,384 tokens

o3-mini

Input200,000 tokens

Output100,000 tokens

Sat Mar 21 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-4o mini supports multimodal inputs, whereas o3-mini does not.

GPT-4o mini can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-4o mini

Text

Images

Audio

Video

o3-mini

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.

GPT-4o mini

Proprietary

Closed source

o3-mini

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4o mini was released on 2024-07-18, while o3-mini was released on 2025-01-30.

o3-mini is 7 months newer than GPT-4o mini.

GPT-4o mini

Jul 18, 2024

1.7 years ago

o3-mini

Jan 30, 2025

1.1 years ago

6mo newer

Knowledge Cutoff

When training data ends

GPT-4o mini has a knowledge cutoff of 2023-10-01, while o3-mini has a cutoff of 2023-09-30.

GPT-4o mini has more recent training data (up to 2023-10-01), making it potentially better informed about events through that date compared to o3-mini (2023-09-30).

GPT-4o mini

Oct 2023

1 mo newer

o3-mini

Sep 2023

Provider Availability

GPT-4o mini is available from Azure. o3-mini is available from Azure, OpenAI. The availability of providers can affect quality of the model and reliability.