reasoning
o1-pro
Version of OpenAI o1 that uses more compute to think harder, offered in the API as snapshot o1-pro-2025-03-19.
Levelmodel
Classreasoning
Parametersnot in the notes
Context200,000
Released19 Mar 2025
Opennessproprietary
Runs onnot in the notes
Statusactive
Lineage
product of
o1 is the parent (product of)medium confidencenotesWhere this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 2 models. Confidence and evidence are the notes' own.
R&D Topics
Identity
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.
Architecture and Size
- Architecture
- not in the notes
- Total parameters
- – sources
- Active parameters
- –
- Checkpoint parameters
- –
- Context length
- 200,000 tokens
- Input
- text, image
- Output
- text
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).
Openness and Access
- Openness
- proprietary
- Licence
- Proprietary sources
- Access routes
- API
Where this comes from
The licence file governs over registry tags and aggregator labels.
Deployment
- Runs on
- not in the notes
- Footprint
- Responses API and Batch only; max output 100,000 tokens; knowledge cutoff 1 October 2023
- Runtimes
- not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.
Indonesia
- Indonesian support
- not stated
- Regional languages
- not in the notes
- Jakarta hosting
- unknown
- Languages
- not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.
Benchmark Results
The notes record no benchmark result for this model.
Industry Use Cases
No industry use case links this model.
Links
DeveloperOpenAIfrontier lab, USA
OpenAIfrontier lab, USAModelo1-proOpenAI, reasoning
o1-proOpenAI, reasoningR&D TopicsReasoning via Large-Scale RL
Use CasesChinese Medical LLMsHealthcareUse cases of models in the same R&D topic; none is recorded for this model itself.
Who Runs Itnone recordedDeployments of these use cases; none names this model.
Organisations 1
Sources
- developers.openai.com/api/docs/models/o1-pro https://developers.openai.com/api/docs/models/o1-pro
- openrouter.ai/api/v1/models https://openrouter.ai/api/v1/models
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "o1-Pro", https://aurion.semai.id/models/openai-o1-pro/, records of October 2026.