AI Launch Profile

Introducing GPT-4.5

OpenAI released GPT-4.5 as a research preview of its strongest GPT chat model, emphasizing broader knowledge, creativity, and natural collaboration.

Company
OpenAI
Launch date
February 27, 2025
Launch type
Model Release
Category
AI Productivity Tools
Audience
Creators, Developers, Enterprises, Writers
Pricing
Available to ChatGPT Pro users and paid API users at launch; OpenAI described it as compute intensive and more expensive than GPT-4o.
Free plan
no
API
yes
Open source/open weight
no

Verification & Sources

Status
Verified
Source links
1
Freshness
Verified June 8, 2026
Last verified
June 8, 2026
Last updated
June 7, 2026

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Kingy Scores

Launch Score
Unscored
Demo Quality
Unscored
YouTube Potential
Unscored

Kingy AI Take

A useful historical marker for the GPT scaling path, especially for writing quality and creative evaluation.

Who it is for

Developers and ChatGPT users exploring writing, programming, communication, brainstorming, and creative work.

What feels promising

Stronger natural conversation, creative intuition, and lower hallucination claims versus earlier GPT models.

What feels unproven

High cost and temporary API positioning limited its long-term product role.

Traction notes

Notable as a high-end GPT-path model before GPT-4.1 became the lower-cost developer successor in the API.