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BenchLM
Superseded.OpenAI has newer models in this line:o1

o1-preview

SupersededReleased Sep 12, 2024ProprietaryReasoning200K context

Released Sep 12, 2024 — see all recent releases

Decision reading
o1-preview is tracked, but not publicly ranked yet. The profile exposes 0 sourced benchmark rows and leaves unsupported fields blank until a published record exists.

Data as of September 2, 2026 · How the score is built

Compare o1-previewFind alternatives

Spec sheet

Each documented value carries its source. Missing fields stay visible as not sourced or not published, rather than disappearing from the page.

API model ID
Not published
Context window
200K
Maximum output
Not sourced yet
Knowledge cutoff
Not sourced yet
Input modalities
Not sourced yet
Output modalities
Not sourced yet
Parameters
Not disclosed by the provider
Availability
Not sourced yet
Cloud regions
Not tracked yet
Lifecycle
Superseded
API capabilities
Tool calling, structured outputs, and batch support are not tracked yet
Prompt caching
Not documented in the pricing record
Self-host
Weights are not published
Rate limits
Not tracked yet

Lineage

The sequence follows explicit supersedes links. A successor's displayed score stays at least 0.1 points above its predecessor; raw benchmark rows do not move. Scores and prices remain blank when the corresponding public row or first-party rate is unavailable.

  1. Sep 12, 2024 · you are here

    o1-preview

    Not publicly ranked · $15 / $60

  2. December 2024

    o1

    Score 48.7 · $15 / $60

snapshot · preview

o1o1 · 48.7o1-pro · 46.3

How to read this profile

The visual layer above carries the decisions. These notes preserve the model, ranking, coverage, and family context behind the numbers.

We track o1-preview, but no weighted text-model benchmark result is published on the site yet. This page shows the metadata and separate protocol evidence we can verify now; a BenchLM score will appear only if compatible public evaluations land.

o1-preview is a proprietary model with a 200K context window. It uses an explicit reasoning mode, which can improve complex problem solving while adding latency and token use.

o1-preview sits in the o1 family with o1, o1-pro. The profile has no source-displayable benchmark row yet.

Radar

o1-preview release history

Full release history

Radar confirmed these at the source. Already tracking o1-preview? See the free Radar Brief for what changes next.

Frequently asked questions

How does o1-preview perform overall in AI benchmarks?

o1-preview does not have any source-displayable benchmark rows yet, so this profile does not assign a public score or rank. Documented specifications remain visible, while score-led charts and claims stay unavailable until a published evaluation can be attached to the exact model.

Which sibling models are related to o1-preview?

o1-preview belongs to the o1 family. Related tracked variants include o1, o1-pro. A sibling link indicates shared lineage or a documented configuration relationship; it does not mean the variants have identical pricing, context limits, benchmark evidence, or deployment behavior. Compare before switching.

Does o1-preview have full benchmark coverage on BenchLM?

No. o1-preview currently has 3 source-displayable rows across 416 tracked benchmark slots. The profile exposes published, non-generated evidence and leaves missing categories blank until an exact evaluation is available. Coverage describes how much was measured; it is not a penalty added to an individual benchmark result.

What is the context window size of o1-preview?

o1-preview has a reported context window of 200K in the exact-model catalog record. The value stays visible, but the profile marks its source link as unavailable instead of presenting it as directly documented. Maximum output length remains separate because providers often publish a different limit.

Compare o1-preview with every tracked model409 comparisons

Last updated September 2, 2026. Runtime fields remain blank until a sourced snapshot exists.

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