o3-pro
High-compute variant of o3, released June 2025, trading speed and cost for maximum reliability on difficult problems.
Key Specifications
- Context window
- 200K tokens
- Max output
- 100K tokens
- Knowledge cutoff
- web search available
- Released
- Inputs
- Text, image
- Capabilities Show details
- Reasoning Thinks before it answers, always on or as a switchable mode. Function calling Connect to external tools, APIs, and systems. Structured output Return responses in structured formats like JSON. Web search Search the web for up-to-date information. MCP Connect to services via Model Context Protocol. Image generation Generate and edit images from text prompts.
Hosted API pricing
| Provider | Input /1M tokens | Output /1M tokens | Cost at 10M in + 2M out | |
|---|---|---|---|---|
|
OpenAI
Creator
|
$20.00 | $80.00 | $360.00 | View |
Azure
|
$20.00 | $80.00 | $360.00 | View |
Heads up: Base-tier, on-demand rates per 1M tokens; cached, batch and long-context tiers excluded. A provider may serve a shorter context or a quantized build than the creator's release. Verify before provisioning. More on how we price.
Similarly priced models
The models nearest o3-pro by blended rate, each at its own cheapest provider.
| Model | Blended /1M | Input /1M | Output /1M | Context | Cutoff | vs o3-pro |
|---|---|---|---|---|---|---|
|
GPT-4 Turbo
OpenAI
|
$13.3333 | $10.00 | $30.00 | 128K | Dec 2023 | −56% |
Claude Fable 5
Anthropic
|
$16.6667 | $10.00 | $50.00 | 1M | Jan 2026 | −44% |
|
Claude Fable 5.1
Anthropic
|
$16.6667 | $10.00 | $50.00 | 1M | Jun 2026 | −44% |
|
GPT-6 Astra
OpenAI
|
$16.6667 | $10.00 | $50.00 | 1M | Apr 2026 | −44% |
|
o1
OpenAI
|
$22.50 | $15.00 | $60.00 | 200K | Oct 2023 | −25% |
|
o3-pro
This model
OpenAI
|
$30.00 | $20.00 | $80.00 | 200K | Jun 2024 | |
|
GPT-5 Pro
OpenAI
|
$32.50 | $15.00 | $120.00 | 400K | Sep 2024 | +8% |
|
GPT-4
OpenAI
|
$35.00 | $30.00 | $60.00 | 8K | Dec 2023 | +17% |
|
GPT-5.2 Pro
OpenAI
|
$45.50 | $21.00 | $168.00 | 400K | Aug 2025 | +52% |
|
GPT-5.4 Pro
OpenAI
|
$55.00 | $30.00 | $180.00 | 1M | Aug 2025 | +83% |
|
GPT-5.5 Pro
OpenAI
|
$55.00 | $30.00 | $180.00 | 1M | Dec 2025 | +83% |
Prices are USD per 1M tokens at each model's cheapest listed provider. Blended is the cost of 10M input plus 2M output tokens, spread over the 12M.
Frequently Asked Questions
What is o3-pro good for?
Difficult problems where reliability per request outweighs cost: OpenAI says the high-compute variant of o3 spends more compute for consistent answers.
When is o3-pro not a good fit?
High-volume work: it sits near the top of OpenAI's price range. No code execution or file input, and OpenAI plans to shut it down in December 2026.
What is the cheapest way to run o3-pro?
The cheapest hosted rate is $20.00 / $80.00 per 1M tokens via OpenAI.
How does o3-pro compare with o1-pro?
OpenAI says o3-pro is to o3 what o1-pro was to o1: it spends more compute to think longer and give more reliable answers, can search the web, run Python and analyze files as it reasons, and beat o1-pro in OpenAI's own evaluations. Same 200K-token context and text and image input. o3-pro lists at 87% less per 1M input tokens and 87% less per 1M output tokens than o1-pro. It came out 3 months later and has a newer knowledge cutoff (June 2024 against October 2023).
Can I self-host o3-pro?
No. OpenAI does not publish the weights; o3-pro is available only through hosted APIs.
More from OpenAI
| Model | Context | Input /1M | Output /1M |
|---|---|---|---|
|
GPT-5 Pro
|
400K | $15.00 | $120.00 |
|
GPT-4
|
8K | $30.00 | $60.00 |
|
o1
|
200K | $15.00 | $60.00 |
|
GPT-5.2 Pro
|
400K | $21.00 | $168.00 |
|
GPT-6 Astra
|
1M | $10.00 | $50.00 |
|
GPT-5.5 Pro
|
1M | $30.00 | $180.00 |
|
GPT-5.4 Pro
|
1M | $30.00 | $180.00 |
|
o3-deep-research
|
200K | $10.00 | $40.00 |