Model Comparison

GPT-4o vs GPT-5 mini

GPT-5 mini significantly outperforms across most benchmarks. GPT-5 mini is 6.4x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GPT-4o outperforms in 0 benchmarks, while GPT-5 mini is better at 2 benchmarks (GPQA, Humanity's Last Exam).

GPT-5 mini significantly outperforms across most benchmarks.

Tue May 05 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-5 mini costs less

For input processing, GPT-4o ($2.50/1M tokens) is 10.0x more expensive than GPT-5 mini ($0.25/1M tokens).

For output processing, GPT-4o ($10.00/1M tokens) is 5.0x more expensive than GPT-5 mini ($2.00/1M tokens).

In conclusion, GPT-4o is more expensive than GPT-5 mini.*

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

Lowest available price from all providers
Tue May 05 2026 • llm-stats.com
OpenAI
GPT-4o
Input tokens$2.50
Output tokens$10.00
Best providerAzure
OpenAI
GPT-5 mini
Input tokens$0.25
Output tokens$2.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5 mini accepts 400,000 input tokens compared to GPT-4o's 128,000 tokens. GPT-5 mini can generate longer responses up to 128,000 tokens, while GPT-4o is limited to 16,384 tokens.

OpenAI
GPT-4o
Input128,000 tokens
Output16,384 tokens
OpenAI
GPT-5 mini
Input400,000 tokens
Output128,000 tokens
Tue May 05 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-4o and GPT-5 mini support multimodal inputs.

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

GPT-4o

Text
Images
Audio
Video

GPT-5 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

Proprietary

Closed source

GPT-5 mini

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4o was released on 2024-08-06, while GPT-5 mini was released on 2025-08-07.

GPT-5 mini is 12 months newer than GPT-4o.

GPT-4o

Aug 6, 2024

1.7 years ago

GPT-5 mini

Aug 7, 2025

9 months ago

1.0yr newer

Knowledge Cutoff

When training data ends

GPT-5 mini has a documented knowledge cutoff of 2024-05-30, while GPT-4o's cutoff date is not specified.

We can confirm GPT-5 mini's training data extends to 2024-05-30, but cannot make a direct comparison without GPT-4o's cutoff date.

GPT-4o

—

GPT-5 mini

May 2024

Provider Availability

GPT-4o is available from Azure, OpenAI. GPT-5 mini is available from OpenAI.

GPT-4o

azure logo
Azure
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M
openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

GPT-5 mini

openai logo
OpenAI
Input Price:Input: $0.25/1MOutput Price:Output: $2.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI

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

OpenAI
Larger context window (400,000 tokens)
Less expensive input tokens
Less expensive output tokens
Higher GPQA score (82.3% vs 70.1%)
Higher Humanity's Last Exam score (16.7% vs 5.3%)

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-4o
OpenAI
GPT-5 mini

FAQ

Common questions about GPT-4o vs GPT-5 mini.

Which is better, GPT-4o or GPT-5 mini?

GPT-5 mini significantly outperforms across most benchmarks. GPT-4o is made by OpenAI and GPT-5 mini is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT-4o compare to GPT-5 mini in benchmarks?

GPT-4o scores AI2D: 94.2%, DocVQA: 92.8%, ChartQA: 85.7%, MMLU: 85.7%, CharXiv-D: 85.3%. GPT-5 mini scores AIME 2025: 91.1%, HMMT 2025: 87.8%, GPQA: 82.3%, FrontierMath: 22.1%, Humanity's Last Exam: 16.7%.

Is GPT-4o cheaper than GPT-5 mini?

GPT-5 mini is 10.0x cheaper for input tokens. GPT-4o costs $2.50/M input and $10.00/M output via azure. GPT-5 mini costs $0.25/M input and $2.00/M output via openai.

What are the context window sizes for GPT-4o and GPT-5 mini?

GPT-4o supports 128K tokens and GPT-5 mini supports 400K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-4o and GPT-5 mini?

Key differences include context window (128K vs 400K), input pricing ($2.50 vs $0.25/M). See the full comparison above for benchmark-by-benchmark results.