MODEL LINEAGE
中文
Model index
OpenAI·GPT

GPT-4.1

Improved coding, instruction following, and long-context processing, with up to one million tokens in the API.

LegacyLanguageCodingMultimodalWeights not released
MODEL NUMBER269
First public date
2025-04-14
Organization
OpenAI
Family
GPT
01

Specifications

Only published specifications are shown.

Context
1,047,576 tokens↗
Maximum output
32,768 tokens↗
Input modalities
Text · Image
Output modalities
Text
Open weights
No
Status
Legacy
02

Overview

Release dates

— GPT-4.1, GPT-4.1 mini and GPT-4.1 nano launched together in the API. ↗

03

Specifications alongside predecessor

Compared with GPT-4o ↗

PreviousGPT-4o— · 128K ctx
CurrentGPT-4.1— · 1.05M ctx
04

Architecture & capabilities

05

Release history

API launch

GPT-4.1, GPT-4.1 mini and GPT-4.1 nano launched together in the API.

View source
06

Related models

Select a card to view the related model.

PredecessorGPT-4oView details →SiblingGPT-4.1 miniView details →SiblingGPT-4.1 nanoView details →
07

Sources

01
Introducing GPT-4.1 in the APIOpenAI · Published 2025-04-14 · Checked 2026-09-03
Official · Verified02
OpenAI API model specificationsOpenAI · Checked 2026-09-07
Official · Verified
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