o3-pro
No estimate
No hardware requirements for this model
The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.
On record
Full specification
Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.
Origin
Who built this model, where, and when it was published.
- Organisation
- OpenAI
- Organisation type
- Industry
- Country
- United States of America
- Published
- 10 June 2025
Size
How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.
- Training data
- tokens
How it is classified
Labels the source dataset applies when tracking notable models, and how confident it is in the entry.
- Record confidence
- Unknown
Sources
Where this record came from and when it was last checked.
- Last updated
- 10 February 2026
What the numbers mean
About this model
o3-pro was published by OpenAI, in United States of America, in June 2025. The organisation is categorised as industry.
Its weights were never published, so it can only be reached through its provider. No graphics card changes that.
Answers
o3-pro — common questions
What GPU do I need to run o3-pro?
None. o3-pro is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.
Is o3-pro open source?
The licensing for o3-pro was never recorded in our source data. We treat unstated licensing as closed, because an unrecorded licence is not one to rely on.
How many parameters does o3-pro have?
No parameter count has been published for o3-pro, which is why no memory or speed figure appears on this page.
Who created o3-pro?
o3-pro was published by OpenAI, based in United States of America, categorised as industry.
When was o3-pro released?
o3-pro was published in June 2025.
Source
Record last updated 10 February 2026
The other direction
Looking at it from the other side?
This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.