OpenAI (AI company)OpenAIOpenAIofficially / formallyzhèngshì正式to take offline / to retirexiàxiàn下线ChatGPT (AI chatbot)ChatGPTChatGPTin / withinzhōng de中的GPT-4.5 (AI model)GPT-4.5GPT-4.5modelmóxíng模型。
OpenAI (AI company)
OpenAI
OpenAI
officially / formally
zhèngshì
正式
to take offline / to retire
xiàxiàn
下线
ChatGPT (AI chatbot)
ChatGPT
ChatGPT
in / within
zhōng de
中的
GPT-4.5 (AI model)
GPT-4.5
GPT-4.5
model
móxíng
模型
OpenAI (AI company)
OpenAI
OpenAI
on / at
yú
于
June 27
6 yuè 27 rì
6月27日
officially / formally
zhèngshì
正式
(disposal marker)
jiāng
将
GPT-4.5 (AI model)
GPT-4.5
GPT-4.5
from
cóng
从
ChatGPT (AI chatbot)
ChatGPT
ChatGPT
to take offline / to retire
xiàxiàn
下线
users
yònghù
用户
can / may
kě
可
to switch to / to use instead
zhuǎn yòng
转用
newer / more recent
gèng xīn de
更新的
GPT-5.5 (AI model)
GPT-5.5
GPT-5.5
June 28, 2026 at 7:00 AM
OpenAI (AI company)
OpenAI
OpenAI
on / at
yú
于
June 27
6 yuè 27 rì
6月27日
officially
zhèngshì
正式
(disposal marker)
jiāng
将
GPT-4.5 (AI model)
GPT-4.5
GPT-4.5
from
cóng
从
ChatGPT (AI chatbot)
ChatGPT
ChatGPT
to take offline / to retire
xiàxiàn
下线
this
zhège
这个
model
móxíng
模型
already
yǐjīng
已经
in / on
zài
在
ChatGPT
ChatGPT
ChatGPT
on / within
shàng
上
run / operate
yùnxíng
运行
(completion particle)
le
了
a long
hěn cháng
很长
time / period
shíjiān
时间
OpenAI
OpenAI
OpenAI
in / at
zài
在
May
5 yuè
5月
announced
xuānbù
宣布
(completion particle)
le
了
this
zhège
这个
plan
jìhuà
计划
gave / for
gěi
给
users
yònghù
用户
30 days
30 tiān
30天
(structural particle)
de
的
preparation / notice
zhǔnbèi
准备
time
shíjiān
时间
now / currently
xiànzài
现在
users
yònghù
用户
can / may
kěyǐ
可以
to use
yòng
用
GPT-5.5 (AI model)
GPT-5.5
GPT-5.5
to continue
jìxù
继续
previous / before
yǐqián
以前
(structural particle)
de
的
conversations / chats
duìhuà
对话
however / but
búguò
不过
GPT-4.5 (AI model)
GPT-4.5
GPT-4.5
in / via
zài
在
API (application programming interface)
API
API
on / through
shàng
上
still / continues to
réngránn
仍然
can / be able to
kěyǐ
可以
to use / to access
shǐyòng
使用
OpenAI
OpenAI
OpenAI
also / additionally
hái
还
plans to
jìhuà
计划
on / at
yú
于
August
8 yuè
8月
to retire / to take offline
xiàxiàn
下线
another
lìng yī gè
另一个
model
móxíng
模型
o3 (AI model name)
o3
o3
News in English
Science & TechnologyOpenAI Officially Retires GPT-4.5 From ChatGPT
OpenAI officially retired GPT-4.5 from ChatGPT on June 27. Users can continue with GPT-5.5, though GPT-4.5 remains available via the API.
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duō nián qī
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Tencent (Chinese tech company)
Téngxùn
腾讯
from / toward
xiàng
向
Oracle (US tech corporation)
Jiǎgǔwén
甲骨文
to lease / to rent for use
zūyòng
租用
one hundred thousand
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颗
artificial intelligence
réngōng zhìnéng
人工智能
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Apple Inc.
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苹果公司
to announce
xuānbù
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will (future marker)
jiāng
将
on / at (preceding a date)
yú
于
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shíyuè shísān rì
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to hold (an event)
jǔxíng
举行
Welcome Home (name of Apple event)
Welcome Home
Welcome Home
product launch event
fābùhuì
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expected to
yùjì
预计
to launch / to introduce
tuīchū
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HomePad mini (Apple smart home display)
HomePad mini
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and others / etc.
děng
等
new-model
xīnkuǎn
新款
products
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产品
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