MODEL LINEAGE
中文
Model index
OpenAI·OpenAI o-series

o1

The full o1 release, bringing stronger reasoning and image understanding to ChatGPT.

LegacyReasoningMultimodalWeights not released
MODEL NUMBER274
First public date
2024-12-05
Organization
OpenAI
Family
OpenAI o-series
01

Specifications

Only published specifications are shown.

Context
200,000 tokens↗
Maximum output
100,000 tokens↗
Input modalities
Text · Image
Output modalities
Text
Open weights
No
Status
Legacy
02

Overview

Release dates

— o1 launched. ↗

03

Specifications alongside predecessor

Compared with o1-preview ↗

Previouso1-preview— · 128K ctx
Currento1— · 200K ctx
04

Architecture & capabilities

05

Release history

06

Related models

Select a card to view the related model.

Predecessoro1-previewView details →Successoro3View details →
07

Sources

01
Introducing ChatGPT ProOpenAI · Published 2024-12-05 · Checked 2026-09-03
Official · Verified02
OpenAI API model specificationsOpenAI · Checked 2026-09-07
Official · Verified
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