OpenAI: o4 Mini
The OpenAI o4 Mini is an AI model capable of processing text, images, and file inputs with a context length of 200,000 tokens; it supports both reasoning and tool usage. While structured output is not explicitly supported, this model excels in handling diverse input modalities, making it versatile for various tasks. Given its blended benchmark score of 64.6 across three independent benchmarks, the o4 Mini should be considered by users who require a balanced performance across multiple applications. Its pricing at $1.1 per million input tokens and $4.4 per million output tokens makes it cost-effective for those working with moderate to complex projects; however, its relatively low benchmark coverage of only 3 out of 10 benchmarks suggests there might be some areas where its performance is less proven or more variable.
Benchmark results
Independent, published benchmarks. Blended score 64.6 across 3 benchmarks, last refreshed 2026-08-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| Aider Polyglot | code editing across languages | 72.0 |
| AI Index | broad capability composite | 43.0 |
| EQ-Bench | emotional understanding in dialogue | 59.4 |
- Model ID
- openai/o4-mini
- Vendor
- openai
- Released
- April 2025
- Tokenizer
- GPT
- Input Modalities
- image, text, file
- Output Modalities
- text
- Max Output
- 100,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- yes
What it costs in practice
Computed from the current $1.10/M input and $4.40/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.04 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.77 |
| A month of a busy support chatbot | 5M in / 2M out | $14.30 |
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Quick answers
- How much does OpenAI: o4 Mini cost?
- $1.10 per million input tokens and $4.40 per million output tokens.
- What is OpenAI: o4 Mini's context window?
- 200,000 tokens, roughly 300 pages of text in a single request.
- Does OpenAI: o4 Mini support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: o4 Mini process images?
- Yes, it accepts image input.