Skip to content
ModelCap

o1-pro

No linked weights

OpenAI·#171 of 504 in the all-versions archive

o1-pro is a language model from OpenAI. It ranks #171 of 504 in ModelCap's all-versions archive, with an Index score of 54.9, modeled from public metadata, not measured. Its score range of 48.7–61.2 spans positions #136–#226. It reads up to 200K tokens of context, with no downloadable weights linked in the current source data.

Figures as of 6 Nov 2026, 20:49 UTC · download the public dataset · methodology

ModelCap Index · All-versions archive
54.9#171
Modeled from public metadata, not measured · range 48.7–61.2
Market Gravity
8.0
Secondary market signal

Superseded by o3 Pro. It no longer holds a current-board position; its all-versions archive rank is #171.

Input
Unlisted
no listed API price
Output
Unlisted
no listed API price
Context
200K
tokens
Providers
0
endpoints

Providers

Uptime measured over the last 30 minutes

No provider is currently serving this model.

Other versions (1)

ModelCap Index · All-versions archive

Methodology
54.9
Modeled from public metadata, not measured
All-versions archive
#171 of 504
Score range
48.7–61.2
Rank range
#136–#226
Technical details
Public rank basis
Modeled · tier sibling (architecture)
Evidence label
Modeled · tier sibling · higher pro tier of o1 (53) (96%); shrunk 0.1 toward the measured corpus
Index support
20.0% · limited
Identity binding
Exact catalogue product · openai/openai/o1-pro · aggregates disclosed benchmark configurations · endpoint configuration not claimed
Index observations used
0
Qualified Index evidence point
54.9
How this position was produced · fused launch placement

No general-family board lists this model yet. Its point estimate is the precision-weighted mean of every channel that spoke for it; each channel’s share is the weight it carried. Independent measurements replace this placement as boards list the model.

Fused estimate
54.9 ± 4.9
Independent share
0%
Shrink toward corpus
-0.1
Optimism haircut
None applied
Method
precision-weighted-v1
Channels fused into this model’s launch placement
ChannelEstimateShare
Publisher corpus prior · not independent
publisher-corpus-prior over 210 held-out anchors
53.0 ± 23.84%
Tier of a measured base · not independent
higher pro tier of o1 (53)
55.0 ± 5.096%
Bayesian Evidence Score · measured evidence input only

BES normalizes admitted public benchmark evidence for measured Index rows. Its legacy score and observables prior do not define the public language rank.

Observed capability
—
Evidence status
No admitted measured evidence
General preference
—
Coding
—
Agents & tools
—
Reasoning
—
Evidence breadth
0%
Evidence coverage
0%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
—
Liquidity (providers × uptime)
—
Open reach (HF downloads)
—
Surface (context / tools / modalities)
68.3
Freshness
10.3
  • · Catalogue: context 200000, reasoning, modalities Text/Image/File
  • · First seen 2025-03-19

These adoption and deployment observations remain context only. They do not change this model's ModelCap Index score or rank.

The bounded 0–100 capability score blends each source’s competitive placement with its published achievement, then combines capability families. Evidence breadth adds a modest uncertainty adjustment; price and popularity are not part of benchmark-led rank.

Experimental capability estimate

Estimate policy
Estimator abstained

insufficient-artifact-metadata

Feature coverage
86%
Training support
221 models · 129 lineages

insufficient-artifact-metadata. This layer predicts from admitted evidence and safe metadata only. It never enters ModelCap Score or rank.

Deployment readiness

Metadata index
14.8
insufficient · 19% metadata coverage
Not capability
Artifact reproducibility
0.0
Access & legal clarity
30.3
Deployability
29.0
Evaluation provenance
0.0

Not yet published: a pinned repository revision, the architecture and model type, a parameter count, safetensors weight metadata, the base model it derives from, a declared licence, a link to the licence terms, a current serving provider, measured provider uptime, published provider pricing, admitted benchmark results, results across several capability areas, results from more than one source, a confident match to its benchmark entries, pinned evaluation dataset versions.

A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.

Market activity

Venue coverage
Market Gravity
8.0
OpenRouter weekly popularity
Not listed

Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.

Arena preference

No matched Arena rating

This model is visible because it is available in the live catalogue, but it has no trustworthy community result yet. ModelCap does not infer a quality score from price, features, or market activity.

Market Gravity breakdown

Usage55%
0.0

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
0.0

Independent providers versus the model's open or closed cohort, weighted by uptime.

Open reach15%
50.0

Hugging Face 30-day downloads for open models; neutral for closed models.

Freshness5%
10.3

Time since first public availability, on a six-month half-life.

Specification

Model ID
openai/o1-pro
Context window
200K tokens
Declared output cap
100K tokens

OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. OpenRouter metadata

Inputs
Text, Image, File
Outputs
Text
Tokenizer
GPT
Cached input tokens
Not offered
First seen on OpenRouter
19 Mar 2025
Knowledge cutoff
2023-10-31

Capabilities

  • Supported: Reasoning
  • Not supported: Tool use
  • Supported: Structured output
  • Supported: Response format
  • Supported: Moderated

o1-pro: common questions

How does o1-pro rank among AI models?

o1-pro is a superseded version and is not on the current board as of 6 November 2026. Its archive position, where one exists, is shown on the page; the newer version carries the current rank.

How much does o1-pro cost per 1M tokens?

No live API price is listed for o1-pro in the current snapshot as of 6 November 2026 because no serving endpoint is published. ModelCap shows a price only when a provider currently lists one.

What is the context window of o1-pro?

o1-pro has a published context window of 200K tokens (200,000). The snapshot lists a 100,000 token catalogue-declared route output cap. OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. The providers table lists each endpoint's context limit.

Is o1-pro open-weight?

No linked weights. No downloadable model weights are linked in the current source data. This does not identify every API or chat product that offers the model.

When was o1-pro released?

o1-pro first appeared in the catalogue on 19 Mar 2025, with a published knowledge cutoff of 2023-10-31. It has since been superseded by o3 Pro. Rank and price movements since then are recorded on the site's changes feed.