OpenAI: o3 Mini
The OpenAI o3 Mini is designed to handle text and file inputs with a context length of 200,000 tokens and supports both reasoning and tools integration. While it does not provide structured output or open weights, its capabilities in input handling and logical processing make it versatile for various tasks. This model stands as a solid choice for users who need robust reasoning and tool support but are willing to pay the price; with a blended benchmark score of 46.6 across two independent evaluations, it offers reliable performance. Given its pricing at $1.1 per million input tokens and $4.4 per million output tokens, it may be more suitable for projects requiring frequent interactions or larger datasets where cost is a consideration.
Benchmark results
Independent, published benchmarks. Blended score 46.6 across 2 benchmarks, last refreshed 2026-07-21. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| Aider Polyglot | code editing across languages | 53.8 |
| AI Index | broad capability composite | 31.3 |
- Model ID
- openai/o3-mini
- Vendor
- openai
- Released
- January 2025
- Tokenizer
- GPT
- Input Modalities
- text, file
- Output Modalities
- text
- Max Output
- 100,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- text only
- 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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OpenAI: GPT-5.4 Mini
Quick answers
- How much does OpenAI: o3 Mini cost?
- $1.10 per million input tokens and $4.40 per million output tokens.
- What is OpenAI: o3 Mini's context window?
- 200,000 tokens, roughly 300 pages of text in a single request.
- Does OpenAI: o3 Mini support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: o3 Mini process images?
- No, it is text-only on the input side.