Models / OpenAI/ o1

o1

OpenAI · released Dec 17, 2024

Input: text, images and documents. Output: text.InputOutput
Type
Closed
Input
$15.00
Output
$60.00
Cached
$7.50

List price · per 1M tokens · OpenAI at 200K context · machine-readable source ↗

Our take

Written Sep 30, 2026

o1 is a hosted-only model from OpenAI: we list no download for it, so using it means choosing a host, and both hosts we list charge the same rate. Its measured quality sits mid-field on every board we hold, so treat it as a general-purpose chat model rather than a category leader.

Who should pick it

Use it for general chat, drafting and document work where you want a hosted model that takes images and files and can hold a long document in one request. It is also the pick when you want a single vendor relationship, since OpenAI hosts it directly alongside OpenRouter at the same rate. Skip it if you need a model you can download and run yourself, or if you need top-of-board measured quality in coding, maths or creative writing.

The case for it

  • A long report or a stack of documents can sit beside the question without being split up first, though reliable recall across all of it is unverified in our data.
  • Images and files go into the same request as the text, so a screenshot or a document does not have to be described in words first.
  • OpenAI hosts it directly alongside OpenRouter, so you are not dependent on a third party for access.

The case against it

  • Mid-field on every board we hold: 94th of 168 on Arena Text (overall) as of 25 Sep 2026 and 108th of 168 on Arena Coding as of 25 Sep 2026, both preference-based boards that record which answer people preferred rather than whether it was correct.
  • We list no download for it, so using it means choosing a host, and both listed hosts charge the same rate.
  • Parameter count is not published, so how large the model is cannot be judged from our data.
00

How good is it?

EverydayGeneral questions and everyday reasoning

2.5 of 5

Arena Text (overall)94th of 168 · 1402

Arena Hard Prompts 97th of 168Arena Maths 89th of 163

CodingWriting and fixing code on its own

2.5 of 5

Arena Coding108th of 168 · 1433

Arena Coding is the only board that has scored it for this.

AgenticPlanning, calling tools, staying on task

not measured

Not yet scored on Arena Agent.

WritingDrafting and rewriting prose

2.5 of 5

Arena Creative Writing85th of 168 · 1381

Arena Creative Writing is the only board that has scored it for this.

Other boards it appears on
Arena Instruction Following 81st of 168

These tests check whether a model follows instructions — a precondition for all the work above, but not a measure of how well that work is done.

Every published score for this model6 scoresEvery figure we hold, from 6 boards, with who ran it and a link to the source — including the boards no rating above is built on.
1433source ↗
1381source ↗
1418source ↗
1409source ↗
1402source ↗
01

Where to rent it

Prices checked between 59 min and 1 hour ago — each listing carries its own date.

Cheapest published offer

OpenAI, direct

The lab is also the cheapest we hold. The strip above and this offer are the same one, so nothing on this page undercuts OpenAI on 200K of context.

per 1M tokens
$15.00 in / $60.00 out
Context served
200K
Throughput
~30 tok/s
Current provider offers with price, context and prompt-privacy answers
ProviderIn / out per 1M tokensContextThroughputTrains on promptsLogs promptsZero retention
OpenRouterOpenRouter's own listing$15.00 / $60.00checked 1 hour ago200Knot measuredUnknownUnknownUnknown
OpenAIDirect$15.00 / $60.00checked 59 min ago200K100K max reply30 tok/sNoYesunknown periodUnknown

Across the 2 listings we hold: 1 says it does not train on prompts, 0 say they do and 1 does not say. 0 appear in the zero-retention registry we check; the rest are unknown to us.

What each host's API supports

From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.

API features per host
ProviderTool callingJSON outputStrict schema
OpenRouterOpenRouter's own listing✓✓✓
OpenAIDirect✓✓✓

Tool calling: 2 of 2 listings say yes. JSON output: 2 of 2 listings say yes. Strict schema: 2 of 2 listings say yes.

02

Models people weigh against o1

Other sizes and versionso3

Compare them field by field →

03

When we formed this view

Recent changes

Sep 25, 2026BenchmarkScored 1433 on Arena Coding
What movedleaderboard
Sep 25, 2026BenchmarkScored 1381 on Arena Creative Writing
What movedleaderboard
Sep 25, 2026BenchmarkScored 1418 on Arena Hard Prompts
What movedleaderboard
Sep 25, 2026BenchmarkScored 1407 on Arena Instruction Following
What movedleaderboard
Sep 25, 2026BenchmarkScored 1409 on Arena Maths
What movedleaderboard
Sep 25, 2026BenchmarkScored 1402 on Arena Text (overall)
What movedleaderboard
Jul 26, 2026ListedListed on LLMap
What movedfirst indexed by our pipeline
Dec 17, 2024Announcedo1 announced by OpenAI

Each date is the day we first saw the change, or the day the maker announced it.

What we do not know about this model yet

  • Nothing we hold says whether an endpoint streams, so we do not show it either way.
  • 1 of 2 listings does not say whether it trains on prompts.
  • We hold no batch or off-peak rate for any of its listings.
04

Licence and identifiers

What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.

Licence

We hold no licence record for this model, and no record of published weights either — so we can neither summarise its terms nor point you at the weights.

Identifiers

Takes in, gives back
Text, images and documents in, text out
Catalogue slug
openai-o1

Machine-readable model card (omc.json) →

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