GPT-5.3

Name: GPT-5.3
Price: 20 USD
Availability: InStock
Rating: 24.8 (1 reviews)
Author: OpenAI

#209Large Language ModelsProprietary

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OpenAI

Refined GPT-5 family release focused on chat quality, coding reliability, and better instruction-following in production use.

Model updates refreshed2d agoJun 24, 2026news + changelog

24.8

Quality Score

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Arena ELO

Undisclosed

Parameters

256K

Context

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Feb 2026

Released

77.1