OpenAI: o3 Pro
The OpenAI o3 Pro model is designed for handling diverse input modalities, including text, files, and images, with a maximum context length of 200,000 tokens. It also supports tools and reasoning capabilities, but does not provide structured output. For users who need to process large amounts of information from various sources, the OpenAI o3 Pro model may be worth considering due to its ability to handle complex input modalities and perform reasoning tasks. However, its price point is relatively high at $20 per million input tokens and $80 per million output tokens. With a blended benchmark score of 77.6 across two independent benchmarks, it holds an average standing among comparable models, making it a viable option for those who can afford the cost.
Benchmark results
Independent, published benchmarks. Blended score 77.6 across 2 benchmarks, last refreshed 2026-09-04. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| Aider Polyglot | code editing across languages | 84.9 |
| AI Index | broad capability composite | 54.9 |
- Model ID
- openai/o3-pro
- Vendor
- openai
- Released
- June 2025
- Tokenizer
- GPT
- Input Modalities
- text, file, image
- 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 $20.00/M input and $80.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.72 |
| Classify 1,000 customer emails | 500k in / 50k out | $14.00 |
| A month of a busy support chatbot | 5M in / 2M out | $260.00 |
Similar models
OpenAI: GPT-5.5 Pro
OpenAI: GPT-5.5 Pro (batch)
OpenAI: GPT-5.4 Pro
OpenAI: GPT-5.4 Pro (batch)
OpenAI: GPT-5.2 Pro
OpenAI: GPT-5.2 Pro (batch)
Quick answers
- How much does OpenAI: o3 Pro cost?
- $20.00 per million input tokens and $80.00 per million output tokens.
- What is OpenAI: o3 Pro's context window?
- 200,000 tokens, roughly 300 pages of text in a single request.
- Does OpenAI: o3 Pro support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: o3 Pro process images?
- Yes, it accepts image input.