GPT-o4 MinivsGPT-4o
OpenAI vs OpenAI — Side-by-side model comparison
Head-to-Head Comparison
| Metric | GPT-o4 Mini | GPT-4o |
|---|---|---|
| Provider | ||
| Arena Rank | #6 | #2 |
| Context Window | 200K | 128K |
| Input Pricing | $1.10/1M tokens | $2.50/1M tokens |
| Output Pricing | $4.40/1M tokens | $10.00/1M tokens |
| Parameters | Undisclosed | ~200B (est.) |
| Open Source | No | No |
| Best For | Affordable reasoning, coding, STEM tasks | General purpose, coding, analysis |
| Release Date | Apr 16, 2025 | — |
GPT-o4 Mini
GPT-o4 Mini is OpenAI's most cost-efficient reasoning model, bringing the power of deliberative chain-of-thought reasoning to budget-conscious applications. It uses the same 'thinking tokens' approach as larger o-series models but at a fraction of the cost ($1.10 per million input tokens). The model excels at STEM tasks, coding challenges, and logical reasoning problems where standard language models struggle. With a 200K context window, it can process long technical documents while applying careful step-by-step analysis. O4 Mini represents OpenAI's effort to democratize advanced reasoning capabilities, making them accessible for educational platforms, coding tools, and analytical applications that previously couldn't justify the cost of full reasoning models.
View OpenAI profile →GPT-4o
GPT-4o is OpenAI's flagship multimodal model, capable of processing text, images, and audio in a unified architecture. The 'o' stands for 'omni,' reflecting its ability to seamlessly handle multiple input types. With a 128K token context window and competitive pricing, it strikes an optimal balance between capability and cost-effectiveness. GPT-4o delivers fast response times while maintaining strong performance across coding, analysis, creative writing, and visual understanding tasks. It powers ChatGPT's default experience and is one of the most widely deployed AI models globally, serving millions of API calls daily. The model supports function calling, JSON mode, and structured outputs, making it highly versatile for production applications. Its combination of speed, quality, and multimodal capabilities makes it the go-to choice for most general-purpose AI applications.
View OpenAI profile →Key Differences: GPT-o4 Mini vs GPT-4o
GPT-4o ranks higher in arena benchmarks (#2) indicating stronger overall performance.
GPT-o4 Mini is 2.3x cheaper on average, making it the better choice for high-volume applications.
GPT-o4 Mini supports a larger context window (200K), allowing it to process longer documents in a single request.
When to use GPT-o4 Mini
- +Budget is a concern and you need cost efficiency
- +You need to process long documents (200K context)
- +Your use case involves affordable reasoning, coding, stem tasks
When to use GPT-4o
- +You need the highest quality output based on arena rankings
- +Quality matters more than cost
- +Your use case involves general purpose, coding, analysis
Cost Analysis
At current pricing, GPT-o4 Mini is 2.3x more affordable than GPT-4o. For a typical enterprise workload processing 100M tokens per month:
GPT-o4 Mini monthly cost
$275
100M tokens/mo (50/50 in/out)
GPT-4o monthly cost
$625
100M tokens/mo (50/50 in/out)
The Verdict
GPT-o4 Mini wins our head-to-head comparison with 3 out of 5 category wins. It's the stronger choice for affordable reasoning, coding, stem tasks, though GPT-4o holds an edge in general purpose, coding, analysis.
Last compared: March 2026 · Data sourced from public benchmarks and official pricing pages